CN104255801A - Crop potassium supplement composition with sterilization function as well as preparation method and application of crop potassium supplement composition - Google Patents

Abstract

The invention discloses a crop potassium supplement composition with a sterilization function. The crop potassium supplement composition comprises the following components in percentage by weight: 60-80% of potassium bicarbonate, 10-20% of tea saponin, 5-15% of hydrogen phosphite and 1-15% of synergia adjuvant, wherein the potassium bicarbonate, the tea saponin and the hydrogen phosphite form the active sterilization component of the composition. The invention further provides a preparation method and an application of the crop potassium supplement composition. The crop potassium supplement composition can be used for at least preventing and treating strawberry or tobacco powdery mildew, tobacco brown spot or ordinary mosaic diseases, for being used as a tobacco potassium supplement leaf fertilizer, and for prompting growth of tobacco stem height and stem girth, enlarging and thickening leaves and delaying potassium loss of tobacco bottom leaves.

Description

The crop with bactericidal action mends potassium composition and method of making the same and purposes

Technical field

The invention belongs to plant protection art; particularly relate to a kind of have improve the crop that performance has a bactericidal action and mend potassium composition and purposes, specifically relate to a kind ofly comprise the crop that saleratus, phosphorous acid hydrogen salt and Tea Saponin etc. have a bactericidal action and mend potassium composition and said composition purposes.

Background technology

The demand of plant to potassium is equivalent to the demand of superior being to sodium, and potassium is the necessary composition of plant growth, and plant optionally absorbs water-soluble state potassium by root system from soil, and potassium distribution mainly concentrates in the most active Organ and tissue of plant metabolism.The absorption of plant to potassium is decided by floristics, the tobacco in plant of Solanaceae, tomato, potato and capsicum, the buckwheat in polygonaceae plant and beet, and the sunflower in feverfew etc. are quite high to the demand of potassium.Potassium can promote the activity of plant corpus endoenzyme, strengthens the ability such as photosynthesis and plant drought, cold-resistant, anti-saline and alkaline, disease and insect resistance, and potash fertilizer improves plant product quality aspect and also plays an important role simultaneously.Show according to international organization's investigation, potassium has substantial connection to plant health and resistance against disadvantage, and it can promote crop growth, reduces damage by disease and insect, especially fungal disease and general insect pest, improves the seed output and quality of crop.

During plant potassium deficiency, Lao Ye and leaf margin first turn to be yellow, and then browning, shrivelledly seemingly burn shape, blade occurs brown spot or patch, but leaf central part, vein place still keep green, along with the aggravation of potassium deficiency degree, whole blade becomes rufous or withered shape, and necrosis comes off, but in Different Crop, potassium deficiency symptom also has specific characteristics.But plant has luxury absorption characteristic to potassium absorb, excessive Potassium Fertilizer, can waste fertilizer amount, suppress plant to the absorption of calcium magnesium, affect crop yield and quality, therefore do not use in a large number disposable, in base fertilizer potassium excessive use unfavorable to plant growth on the contrary.

Agricultural develops rapidly and causes Nutrient Elements in Soil expenditure energy imbalance more and more serious, the test of Nanjing Soil Inst., Chinese Academy of Sciences is with the survey showed that, in the total nutrient of farmland, TAI HU AREA nitrogen and phosphorus in a basic balance and have a small surplus, and potassium loses in a large number, year the amount of waning be 3.5 thousand grams/acre; In Suburbs of Shanghai, Zhejiang Hangjiahu Plain and Fujian low producing region potassium element all wanes, year the amount of waning be 2-5 thousand grams/acre.Because soil potassium can not get supplementing for a long time, so that the contradiction of potassium deficiency exposes a few days ago, several provinces in south potassium deficiency area accounts for 60%, therefore Potassium is answered, supplement the loss of soil potassium, to set up higher Potassium balance, keep higher soil potassium fertility, for high crop yield stable yields provides material base.

Different Crop growth characteristics also exist otherness, also not identical to potassium demand, even if same origin is also different in the potassium demand of different growing.Tomato needs fertile more and resistance to fertilizer again, every mu produce 6600 jin of tomatoes need from soil absorbed nitrogen 18.6 jin, 8.6 jin, phosphorus, 24.6 jin, potassium, the ratio of three is 1:0.46:1.32.And tomato at Seedling Stage based on nitrogen, first fringe fruit start result time, increase sharply to the absorptive amount of nitrogen, phosphorus and potassium, nitrogen accounts for 50% in three elements, and potassium only accounts for 32%, but to result contain the phase with start to gather in the crops time, nitrogen only accounts for 36%, and potassium accounts for 50%.Tomato needs potassium straight line to rise from bearing fruit, and fruit expanding period Amount of potassium absorbed accounts for needs more than 70% of potassium amount the time of infertility, until the absorptive amount of later stage to potassium of gathering just slightly reduces.

Potato belongs to solanaceous crops, originates in mountain area, Andean, state, South America and Western Coast island, imports China at the beginning of the 17th century.The rich amyloid stem tuber of potato, to the demand of nitrogen, phosphorus and potassium because cultivating the factors such as area, yield level and kind slightly difference.Often produce 1 ton of fresh potato and need 4.4-5.5 kilogram of nitrogen, 1.8-2.2 kilogram of phosphorus, 7.9-10.2 kilogram of potassium, it is typical case's happiness potassium crop.Potato absorbs potassium and is mainly used in growing of stem stalk and stem tuber, and sufficient potash fertilizer can make potato plant healthy and strong, strengthens resistant to lodging, cold-resistant and resistance against diseases, and protein, starch and cellulose equal size increase, thus seed output and quality is all improved.Because potato absorption potash fertilizer amount is maximum, even if be rich in potassium in soil, during plantation potato, also sufficient amount potash fertilizer to be supplemented.

Potassium is that tobacco absorbs one of maximum nutritive element, potassium is different from other nutritive element, it is not only essential nutrient element in tobacco growing process, can also improve tobacco leaf flammability and tobacco sucking quality, therefore tobacco potassium content is also regarded as one of cigarette quality important indicator.Potassium burns relevant with tobacco leaf, and the tobacco leaf that potassium content is high has better flammability and glows holds firepower, and tobacco leaf ignition temperature is low, is conducive to reducing harmful substance and produces, improve quality and the safety of tobacco product.Potassium content in tobacco leaf, especially organic potassium content and its tar content closely related, within the specific limits, the increase of organic potassium content can reduce tar emission, according to Shi Yi etc. to 24 tobacco bred identification and analysis results, potassium content in tobacco leaf and tar content are in extremely remarkable negative correlation.Will pay special attention to the content of chlorine during tobacco potash fertilizer, chlorine affects quality of tobacco and combustibility, so potassium chloride can not be used for tobacco, generally chlorinty does not exceed 1%.

Potassium can promote synthesis and the accumulation of the material that carbohydrate, aromatics etc. are relevant with quality in tobacco leaf, thus affects the aroma quality of flue-cured tobacco, perfume quantity.When potassium element is not enough, in cigarette strain body, the low molecular compound such as amino acid and sugar of nonprotein state nitrogen produces accumulation, and total sugar content in tobacco reduces.After executing potassium, potassium content in tobacco leaf significantly improves, cigarette strain well-grown, and resistance strengthens, and the output of tobacco leaf and presentation quality improve, and chemical analysis is coordinated, and jealous improvement, alleviates assorted gas, reduce excitant, thus improve the reviewing prnciple of tobacco leaf.

Increase using of potash fertilizer and can improve potassium content in tobacco leaf to a certain extent, but in northern China cigarette district, make potassium content in tobacco leaf reach more than 2.0%, depend merely on the fertilising of extraneous root portion and produce little effect, because the Applied potassium be manured into soil can by partial fixing in dynamics of potassium in soil equilibrium process.Cheng Ming sides etc. have studied the impact of soil dry-wet alternately on potassium fixation, result shows that most soil has stronger crystallized ability to the potash fertilizer applied, soils of north China is better than south to potassium fixation ability, when amount of potassium applied is 0 ~ 352mg/kg, along with the increase of amount of potassium applied, potassium element is linearly risen by the amount of soil fixing, and fixed rate also increases gradually, soil property is different, and K fixation capacity there are differences.

The potassium content in tobacco leaf of the U.S. and Zimbabwe is many at 4-6%, and China's potassium content in tobacco leaf rarely exceeds 2%, and therefore seeking the approach improving potassium content of tobacco leaf, is the significant problem of China's tobacco leaf production.Tobacco is the active transdermal delivery process of an inverse chemical concentration gradients to the absorption of potassium, transport, and this process is by single-minded K ⁺carry albumen to complete.The condition that this process need 2 is basic, one is want cigarette strain to provide enough energy to absorb and transport to complete the cross-film overcoming difference in chemical potential; Two is need enough organic acids and HCO ^- ₃.

Saleratus is a kind of mineral matter sylvite, because it is not chloride and sulphur, is suitable for any crop and mends potassium.In agriculture field, saleratus is except the function of potash fertilizer, and the application study in recent years as plant leaf surface bactericide also receives much concern, and it can decompose generation fungicidal substance in humid conditions.Saleratus is used to organic farming in European Union, the U.S. and other countries, controls farm crop fungus disease within the specific limits.Potassium in saleratus is that plant needs mineral matter, bicarbonate radical is decomposed into carbonic acid gas, and not producing medicament residue and pollution to plant in whole sterilization process, is a kind of innoxious environment friendly agricultural, can be applicable to the plant of multi-infection powdery mildew and gray mold, application prospect is extensive.

Powdery mildew is caused by the powdery mildew of fungi, mostly is ectoparasitism, and the whole or large portion of mycelium is exposed to the tender tip of host plant, bud and leaf surface, and produces and form macroscopic white powder thing by mycelium, conidiophore and conidium in a large number.Powdery mildew is widely distributed in the whole world, and dicotyledon of causing harm is particularly general.The main powdery mildew of China has by the microbial Cereal powdery mildew of standing grain white powder; The powdery mildew of the various plants such as melon, the beans caused by Siberian cocklebur monofilament shell, crudefiber crop; The grape powdery mildew caused by grape snag shell; The powdery mildew of more than the 80 kind of trees such as chestnut is caused by hazel ball pin shell; The powdery mildew etc. of the Flowers of Rosa caused by rose monofilament shell.Powdery mildew is obligatory parasitic bacteria, and some kind of host range is very wide, as erysiphe polygoni can be caused harm 157 357 Plants belonged to; Some powdery mildew is divided into many different specialized forms, as standing grain powdery mildew can be divided into different specialized forms such as parasitizing wheat, only there is a kind of powdery mildew in a general Plants, sometimes also several powdery mildew can be there is, as the powdery mildew of mulberry that mulberry tree powdery mildew in the mulberry that caused by hazel ball pin shell can occur and caused by mulberry snag shell.

With inorganic sulfur series bactericidal agents such as sulphur, lime sulfur, thiophanate methyl and mancozebs, prevent and treat powdery mildew consumption large, substantially without result for the treatment of, be mainly used in premorbid protection; With the triazole germicide series that triazolone (triadimefon), nitrile bacterium azoles, olefin conversion, Difenoconazole and Flusilazole are representative, improve a lot than the activity of first generation inorganic sulfur bactericide, but this compounds is single to germ action site, germ has cross resistance to such medicament, this compounds is irritant to plant simultaneously, and consumption will suppress plant growth slightly greatly; With the noval chemical compound that import kresoxim-methyl is representative, the mechanism of action is unique, action site is more, to powdery mildew specially higher, the effect of the property controlled can reach more than 90%, but due to domestic long-term use continuously in recent years, produced obvious pesticide resistance, effect declines to some extent, the reagent cost of import is simultaneously too high, is difficult to accept concerning Chinese farmers.

Do not have good mildew-resistance kind can select cultivation for peasant at present, the cost-effective rate of biological control is low, uses and also can not get spread.In order to solve the practical problem of friend peasant, many scientists carry out large quantifier elimination, have also carried out a large amount of screening and experimental study targetedly, have achieved many achievements.As the patent of invention " for improving the calcium salt of the phosphorous acid of fungicide effect " (200980122183.1) that German BASF European Co., Ltd K-H Shi Naide etc. applies in China, phosphorous acid calcium salt and chemical bactericide is utilized to carry out composite, the preventive effect of various chemical medicaments to plant fungal disease can be improved, wherein also have control efficiency to powdery mildew; Display in Chinese invention patent Zhao Jinhua etc. " potassium dihydrogen phosphite is preparing the application in antibacterial foliar fertilizer ", replace potassium dihydrogen phosphate as phosphorus source with potassium dihydrogen phosphite, to the plant pathogenic fungi (bacterial strain is respectively that Fusarium oxysporum cucumber specialized form, Fusarium oxysporum f. sp. niveum, Gibberella zeae, melon and fruit corruption are mould, Rhizoctonia cerealis, sclerotinite and verticillium dahliae) for examination, there is inhibition, fungistatic effect is strengthened along with the increase of concentration, but does not have a control efficiency to powdery mildew.

Due to above all factors restriction, how effectively to prevent and treat powdery mildew and become the problem that peasant has a bad headache, extreme influence agricultural production and income.

Saleratus is as the use of bactericide, many countries are approved all very much, 6 MRL below NZFSA exempted in New Zealand's " Maximum Residue Limits of Agricultural Compounds food standard method " (Table II) in 2007: saleratus is used for fruit and cucurbit fungicide; ATS (Ammonium thiosulphate) is used for the operatic circle and drupe reduces result quantities flowering stage; Print chinaberry extract (its Main Function form comes from nimbin); Isosorbide-5-Nitrae-dimethylnaphthalene is for stoping storage potato sprouting; Hydrogen peroxide is used for fungicide and bactericide fruit sprays process; Peracetic acid is used for fungicide and bactericide fruit sprays process.Organic Ingredients assessment association of the current U.S. also recommendation, Government Of Australia approval saleratus in 2008 uses in organic crops is produced, domestic You Shuo company is applying, and the another one important use of saleratus at present in agricultural production to extend fruit storage freshness date.

Along with EFSA terminates the former medicine peer review of saleratus, EU Committee ratifies to extend the useful life that saleratus is used as bactericide recently.Saleratus has evaluated Qian Huo European Union approval registration as the former medicine of low-risk in European Food office by expedited review procedure in 2009; official demands EU member country adopts suitable risk-based inspection measure to protect honeybee simultaneously; new register request will execution in 1 day February in 2013, this former medicine in Belgium, France, Ireland and Britain by registration.

Ai Lisida company bactericide product was released in Hortitec exhibition in 2013 in Brazil (active ingredient is saleratus), it is the first agricultural chemicals being entered Brazilian market by Brazil's " green passport " product line.Ai Lisida vegetables and fruits market manager EduardoFigueiredo explains, be the starting product making Brazilian greenmarket realize in a series of products of sustainable development, sustainable development is also global trend simultaneously.

OFDC Organic certification normative annex B: " clear stipulaties in crop disease and insect " controlling material/method that middle permission and restriction use ", saleratus as the usage amount of bactericide and method unrestricted; Issue in European Union on January 29th, 2008 and issue exempt material about setting up the annex IV of agricultural chemicals in 149/2008 regulation of the concrete limit standard of plant resource and Animal by-product, issue again G/SPS/N/EEC/196/Add.10 circular April 28 the same year, exemption material is supplemented, exemption material in annex IV has been increased to 40 kinds, and inorganic compound saleratus is just among them; 25 kinds of inorganic compounds such as carbonic hydroammonium, sodium bicarbonate, saleratus, phosphorous acid (bactericide) or salt are all treated as exemption material by the U.S.; The organic crops plantation of China allows the kind also saleratus being classified as unrestricted use in the plant protection products material of use and measure.

Now in the world the main enterprises that saleratus develops listing as bactericide is had 3, be distributed in the U.S. and Japan, Europe is also proposed saleratus as foliage fungicide in the recent period.Bai Wo limited company of the U.S. (Bio Works Inc) releases a kind of brand and is blade face broad spectrum activity fungicide product, Helena chemical company company of the U.S. releases ARMICARB100 series of products, Taogossi Co.LTD company releases Kaligreen series of products, they are all for preventing and treating leaf portion powdery mildew and other plant leaf surface fungal disease of ornamental plants, and main component is saleratus.In Milstop, saleratus accounts for 82%, and all the other are carrier and auxiliary agent; In ARMICARB100 series of products, about 83% is saleratus; In Kaligreen series of products, 85% is saleratus.These bactericide all have good result for the treatment of to powdery mildew, downy mildew and gray mold, also can as other fungoid foliage disease of control.Its mechanism of action is also relatively clearer and more definite, and prevent and treat pathogen mainly through physical being used for, can not develop immunity to drugs problem in theory.Add that saleratus is as bactericide, medicament residue and pollution can not be produced to plant in whole sterilization process, simultaneously can also as the useful supplement of potash fertilizer, therefore many developed countries pay much attention to the Application and Development of saleratus as bactericide, and domesticly also rest on the laboratory research stage at present.

But saleratus is as the use of foliage fertilizer and bactericide, and because it reaches drug effect by being sprayed onto plant surface, instead of directly enter inside plants and produce the mechanism of action, the uniformity of therefore spraying is with regard to particular importance.Saleratus is protected as the know-how of each enterprise as the formula of foliage fertilizer and bactericide and preparation process for producing thereof; for overseas enterprise's product of listing at present; yet just its principle active component only can found, other auxiliary agent and carrier do not carry out fully open.

U.S. patent Nos " the bicarbonate bactericide product with surface active ingredient " (the BICARBONATE FUNGICIDE PRODUCT WTTH A COMBINATION OF SURFACTANT IMGREDIENTS of the application such as Anthony E Winston, US005415877A) the bicarbonate bactericide product containing surfactant is disclosed in, surfactant selected by it is containing Docusate Sodium, NaLS, amber sulfonic acid two fat in ninth of the ten Heavenly Stems sodium, sulfosuccinic acid diisobutyl ester sodium, potassium carboxymethylcellulose, succinic acid sulfonic acid didecyl potassium, dodecyl sulphate potassium, dolomol, xanthans, several combinations in carragheen and hexa-magnesium silicate, formula and preparation method is disclosed in the U.S. patent Nos " the bicarbonate insecticide containing inclusion compound spreader-sticker composition " of the application such as Anthony E Winston, its main adhesive has guar gum, Docusate Sodium, ultrafine dust silica gel, urea polymer, melamine resin, 2,4,5-trichlorophenoxyacetic acid, blocked polyethers F-127 (BASF) and magnesia, disclose the formula of several bactericide in United States Patent (USP) " mixed bactericide composition " US5468715A of the application such as Amy L Joseph, the mass ratio wherein containing saleratus is 5-35%, Anthony E Winston etc. discloses the bacteriocide formula of several control fungal disease containing saleratus in U.S. patent Nos " a kind of method controlling mushroom disease in cultivated plant " (US5432147A), and wherein the mass percent of saleratus is 1-50%, Anthony E Winston etc. in U.S. patent Nos the composition pesticide of fungal disease " control raise crop " (US005518987A), disclose saleratus and kobam (Terrazole) is composite has effect to control pythium spp.Also disclose in invention utilizes 37% saleratus, 14% potash, 34% urea, 9% aerosol OT and 6% Sodium Caprylate to carry out composite simultaneously, has Synergistic fungicidal active to the pythium spp infection control of bending lawn.

Tea Saponin has another name called TS, and since green hill time Lang Shouci in 1931 isolates Tea Saponin, studying intensively with great concentration and practice through several generations, the application of Tea Saponin achieves major progress.It is that belong to pentacyclic triterpenoid, its sterling is colorless prismatic crystal, has hygroscopicity, and bitter is pungent, and molecular formula is C from the seed of plant of theaceae as the plant insecticide extracted tea seed cake, the tea cake of tealeaves after oil expression ₅₇h ₉₀o ₂₆, molecular weight 1191.31, fusing point 223-224 DEG C, the soluble in water and organic solvent such as alcohols, organic acid, is insoluble to ether, benzinum and benzene class organic solvent.

Tea Saponin is vegetable source natural compound, is excellent nonionic surface active agent.Tea Saponin is mainly used in the auxiliary agent, plant growth regulator etc. of wetting powder as wetting agent, water soluble pesticide on pesticide industry, it has nontoxic, the feature such as automatically to degrade, be the extremely promising environmental protection type agricultural chemical auxiliary agent of one, Tea Saponin has been widely used in the wetting agent of the agricultural chemicals such as paclobutrazol, Mobucin, aliette and tricyclazole.Tea Saponin is a large amount of for herbicide glyphosate and insecticide dimehypo at present, particularly be used on glyphosate, give full play to the premium properties of glyphosate, improve its adhesive force on plant and hygroscopicity, improve the penetration of liquid, and due to the good biological of Tea Saponin active, the biologically active of glyphosate can also be improved.

The Zhong Guohua of Agricultural University Of South China etc. describe in Chinese invention patent " citrus corrosion protection antistaling agent containing Tea Saponin " (200710030375.2) account for 2.0% Tea Saponin by weight and account for by weight 0.5% conventional citrus corrosion protection preserving and sterilizing agent imazalil or the former medicine of Prochloraz, surplus is auxiliary agent, be re-dubbed missible oil or wetting powder or microemulsion, can drug effect be increased substantially, reduce use cost.

The Hu Meiying of Agricultural University Of South China etc. describe the former medicine of metalaxyl accounting for 0.01-80% Tea Saponin by weight and account for 0.5-80% by weight in Chinese invention patent " metalaxyl and the composite bactericidal composition of Tea Saponin and application " thereof (200910038344.0), surplus is auxiliary agent, be re-dubbed missible oil or wetting powder or microemulsion, there is remarkable synergistic effect, bactericidal activity enhancing more obvious than single dose, plays multiple diseases and certain doublely controls effect;

The Hu Meiying of Agricultural University Of South China etc. describe the former medicine of mancozeb accounting for 0.01-80% Tea Saponin by weight and account for 0.5-80% by weight in Chinese invention patent " mancozeb and the composite bactericidal composition of Tea Saponin and application " thereof (200910038346.X), surplus is auxiliary agent, be re-dubbed missible oil or wetting powder or microemulsion, there is remarkable synergistic effect, bactericidal activity enhancing more obvious than single dose, plays multiple diseases and certain doublely controls effect;

The former medicine of mancozeb that the Hu Meiying of Agricultural University Of South China etc. describe and account for 0.1-50% Tea Saponin by weight in Chinese invention patent " Pesticidal combination of Tea Saponin and pleocidin " (200910214268.4), account for 0.01-30% by weight and the auxiliary agent accounting for 20-95% by weight carry out composite, can be used for the control of common insect pests in agricultural production;

The rotenone that the Hu Meiying of Agricultural University Of South China etc. describe and account for 0.1-50% Tea Saponin by weight in Chinese invention patent " Pesticidal combination of Tea Saponin and rotenone " (200910214378.0), account for 0.01-30% by weight and the auxiliary agent accounting for 20-95% by weight carry out composite, have significant synergies, insecticidal activity enhancing more obvious than single dose, can be used for control prodenia litura, beet armyworm, diamond-back moth, radish aphid or rice fulgorid;

The Shen Lirong etc. of Zhejiang University and Zhejiang Chang Fa oil and foodstuffs Co., Ltd in Chinese invention patent " taking Tea Saponin as the compound imidacloprid suspoemulsion of synergist and surfactant " (201010151774.6), describe the former medicine of Imidacloprid and Tea Saponin is that 100:10 carries out being mixed with aqueous suspension agent by effective content mass ratio, have and easily degrade under field conditions (factors), environmentally safe, and there is synergistic effect;

The Zhang Xiangjie of Zhejiang Choisun Tea Development Co., Ltd. etc. describe in Chinese invention patent " a kind of Plant leaf fertilizer prepared by natural tea saponin powder " (201210543666.2) be by weight percentage 14% Tea Saponin pulvis, the potassium citrate of 48%, the industrial sulphuric acid zinc of 37% and the ammonium molybdate of 1% carry out being mixed with foliage fertilizer, it is good that this foliage fertilizer has dissolution dispersity, cost is low, the advantage that with strong points and effect is good, and this foliage fertilizer is solid dosage forms, packed and transported is convenient, this foliage fertilizer is used for paddy rice, the average test result of 2 years shows, paddy rice on average increases production 12.1%.

Toxicity of pesticide and environment friendly are more and more subject to people and pay attention to, and select the novel agrochemical of high-efficiency low-toxicity low-residual to become trend.Mixed and composite is the Main Means extending the service life of old kind agricultural chemicals, the pesticide resistance alleviating target organisms, expanding prevention spectrum, raising pharmacy control efficacy and environmental safety, delay pathogen pesticide resistance by different mechanism of action composite reagent, can pharmacy control efficacy be improved simultaneously.The application of saleratus, Tea Saponin has many successful experiences, but saleratus and Tea Saponin two kinds of medicaments carry out compositely up to the present also not reporting.

Phosphorous acid and alkali metal salt thereof and ester have the effect improving bactericide inhibition, the Fungicidal composition of phosphorous acid or its salt is described in U.S. patent Nos US4075324, said composition has the general Fungicidally active of phosphorous acid hydrogen salt, and only has when they combine with other chemical fungicides and superpose activity; WO2002/05650 discloses the derivative of phosphorous acid and the Fungicidal formulations of salt of the organic compounds combination comprising at least one amino acid and at least one algae extract composition; WO2004/047540 has synergistic function strong especially when describing potassium phosphite and the combination of some synthesis of antifungal agents; The salt that WO2007/017220 describes phosphorous acid and the Synergistic mixture of compound not having or seldom have Fungicidally active and intrinsic light catalytic performance.

Saleratus due to plant epiphyte and control efficiency with a lot of chemical agent than still there being a certain distance, carry out applying as sterilization or fewer therefore separately.The bactericide saleratus of current list marketing is all mainly the complex agent type containing saleratus, and main or saleratus and chemical agent composite, also have part to be that saleratus and other mineral salt (as sodium bicarbonate, sulfur-containing inorganic salt, inorganic phosphor-contained salt and cupric mineral salt) are composite, but so far there are no about saleratus, Tea Saponin and phosphorous acid hydrogen salt carries out the case of compound synergic.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of crop with bactericidal action and mends potassium composition and method of making the same and purposes.

In order to solve the problems of the technologies described above, the invention provides a kind of crop with bactericidal action and mend potassium composition, said composition is grouped into by the one-tenth of following weight content:

Described saleratus, Tea Saponin and phosphorous acid hydrogen salt constitute the active sterilization component of composition.

Remarks illustrate: under optimum condition, saleratus is 75%, and Tea Saponin is 15%, and phosphorous acid hydrogen salt is 8%, and potentiating adjuvant therefore is surplus.

The improvement of potassium composition is mended: potentiating adjuvant therefore comprises mineral salt anticaking agent and synergist as the crop with bactericidal action of the present invention; Described mineral salt anticaking agent is made up of (weight ratio that both are 1:0.9 ~ 1.1) light magnesium oxide and White Carbon black, and described synergist is nano-titanium oxide;

Or potentiating adjuvant therefore is silica.

The further improvement of potassium composition is mended: said composition is grouped into by the one-tenth of following weight content as the crop with bactericidal action of the present invention:

The further improvement of potassium composition is mended: described phosphorous acid hydrogen salt is potassium dihydrogen phosphite as the crop with bactericidal action of the present invention.

The further improvement of potassium composition is mended: described White Carbon black is Fumed silica as the crop with bactericidal action of the present invention.

The present invention also provides the purposes that above-mentioned crop mends potassium composition simultaneously: be following at least one purposes:

For preventing and treating strawberry or Powdery Mildew in Tobacco, Alternaria alternate or common mosaic;

Potassium foliage fertilizer is mended as tobacco;

Promote that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

The present invention also provides the preparation method that above-mentioned crop mends potassium composition simultaneously, comprises the steps:

1), will be crushed to by 80 mesh sieves after saleratus and the mixing of phosphorous acid hydrogen salt;

2), will be crushed to by 80 mesh sieves after Tea Saponin and potentiating adjuvant therefore mixing;

3), by step 1) gains and step 2) gains proportionally mix, spray and pulverize, and the crop must with bactericidal action mends potassium composition.

The improvement of the preparation method of potassium composition is mended: spraying pulverizing is: expulsion pressure is 12MPa, 30 minutes time as crop of the present invention.

According to the crop with bactericidal action of the present invention mend potassium composition carry out in mass ratio composite after, can conveniently technique operate: add different fillers, synergist and other auxiliary material on demand, be processed into acceptable formulation, as soluble powder.

Composition provided by the invention contains this 3 effective constituents of Tea Saponin, saleratus and phosphorous acid hydrogen salt, the mechanism of action of the composite rear medicament as active ingredient effectively combines, especially Tea Saponin is while its bactericidal action of performance, plays significant synergistic effect to saleratus and phosphorous acid hydrogen salt.

Composition of the present invention can be used for the control of Common mycotic disease in agricultural production, has the function of pest control concurrently, and wherein not containing chemical synthetic pesticide, can be used as the highly effective pesticide new varieties that organic farming, pollution-free food and nuisanceless fruits and vegetables are produced.

Composition of the present invention, due to containing the indispensable element needed for the plant growths such as potassium, phosphorus, magnesium, also serves as effect of foliage fertilizer while sterilization, significantly reduces the use cost of peasant.

Good, dispersed strong, the good fluidity prevented from caking of composition soluble powder dissolubility of the present invention, sprays rear blade face adhesion property excellent, without the need to just gathering during personal distance after using, and the risk of non agricultural chemical residuum.

The main application of composition provided by the present invention is control strawberry and Powdery Mildew in Tobacco, and Alternaria alternate is particularly applicable to pesticide resistance region and uses.

Composition provided by the present invention mends potassium foliage fertilizer as tobacco, and promote that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

To have the medicament of different mechanism of action, especially having negative mutual drug-fast medicament, to carry out composite be carry out resistance management and delay the important measures that the anti-medicine of medicament produces.Composition provided by the present invention has the following advantages:

(1) medicament of different mechanism of action carries out composite by said composition, for avoiding or delaying pesticide resistance, extend the old kind Pesticide use life-span of low cost and improve effect of chemical control to be significant;

(2) Tea Saponin is botanical fungicide; saleratus and phosphorous acid hydrogen salt are mineral substance bactericide; adjuvant used and synergist is also inorganic mineral salt; combined bactericide after they are composite has high-efficiency low-toxicity, environment amenable advantage; meet the requirement of national green food production; be applicable to the fungal disease of control vegetable at protected field melon and fruit and ornamental plants etc., application prospect is very wide.

(3) synergy provided by the present invention obvious composition environmental protection compound preparation is soluble powder, compare with emulsifiable concentrate, aqueous emulsion or suspending agent etc., save a large amount of organic solvents, environmentally safe, the safety that greatly can improve production, storing simultaneously and use.

(4) mainly solve the problems that saleratus and the single use of potassium hydrogen phosphite cause: drug effect is low and effect broad spectrum activity is poor as saleratus is used alone, dispersed and adhesion property is poor, product easily lumps the problem such as short with shelf life.

The crop with bactericidal action of the present invention mends potassium composition, and actual using method and consumption are: execute first time medicine at disease initial stage of origination, use once afterwards, general medication 3-5 time every 7 days.When using, composition being diluted to concentration is 5-10g/l, mu amount of application is 50 kilograms (aqueous solution after dilution), at cloudy day or fine day, should execute if benefit should be carried out with regard to raining in 1 hour after dispenser when using, must not be used in combination with other highly acid medicament when using.

Above-mentioned disease mainly refers to strawberry and Powdery Mildew in Tobacco, Alternaria alternate and common mosaic etc.

In sum, composition of the present invention comprises saleratus, Tea Saponin, phosphorous acid hydrogen salt and potentiating adjuvant therefore.Said composition has obvious synergistic effect, the weak point that above-mentioned medicament (saleratus, Tea Saponin, phosphorous acid hydrogen salt) is used alone can be solved, decrease spraying times, reduce formulation rate and eliminate saleratus and use separately shortcoming plant being produced to poisoning and action effect difference, be particularly suitable for the plantation of organic crops.Obvious cross resistance is not had between this several medicament of Tea Saponin, saleratus and phosphorous acid hydrogen salt.

In sum, should be efficient, safety, economic 3 requirements had both to meet good product, inventor is through comprehensively deep market survey, carry out a large amount of screening and experimental study targetedly, finally succeeded in developing, to strawberry and Powdery Mildew in Tobacco, Alternaria alternate, there is the very highly active crop benefit potassium composition with bactericidal action comprising Tea Saponin, saleratus, phosphorous acid hydrogen salt and potentiating adjuvant therefore.The sterilization mechanism of said composition is different from conventional chemical pesticide, and while sterilization, also have certain control to insect pest of the plant, better is can use as the benefit potassium foliage fertilizer of crop.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.

Fig. 1 is the production technological process that the crop with bactericidal action of the present invention mends potassium composition.

Embodiment

Raw material of the present invention:

Saleratus, content 99%, Zhejiang Dayang Biotech Group Co., Ltd., commercially available;

Potassium dihydrogen phosphite, high-class product, Shanghai Tong Yuan Chemical Co., Ltd., commercially available;

Tea Saponin, content 91.08%, Hunan Hanqing Biological Co., Ltd., commercially available;

Light magnesium oxide, AR, Nanjing chemical reagent, commercially available;

Fumed silica, Zhejiang Wenhua chemical industry, commercially available;

Nano-titanium oxide (anatase titanium dioxide), Zhejiang Dayang Biotech Group Co., Ltd., commercially available;

Embodiment 1, test saleratus, Tea Saponin, potassium dihydrogen phosphite and compound drug thereof are to the virulence coefficient of strawberry powdery mildew

1. strains tested:

Strawberry powdery mildew (Sphaerotheca machlaris), this bacterial classification is provided by biotechnology research institute of Zhejiang University professor Zhang Chulong.

2. reagent agent:

Table 1 complex preparation formula and composition specification

Remarks illustrate:

Above-mentioned chemicals treatment concentration refers to the content of active sterilization component (comprising saleratus, Tea Saponin and potassium dihydrogen phosphite), does not comprise silica.

3. test method

Spore suspension spray inoculation method is adopted to measure the biologically active of medicament: to get the From Strawberry Leaves covering with Powdery Mildew, leaf back Fresh spores is got with washing gently containing 0.1% tween sterile water, use double-layer sterile filtered through gauze, the suspension making spore concentration 100,000/about ml is for subsequent use.Choose the identical strawberry of growing way as supplying examination material, reagent agent and contrast medicament are mixed with 4000, 2000, 1000, 500, 250 and the liquid of 125mg/l concentration, carry out spraying process (till all drenching so that blade face is positive and negative), often process 10 basins, if 3 repetitions, after leaf natural is dry, (sprayer model is 1/8HP (0.095)-118 to carry out spray inoculation pathogen, atomisation pressure is 0.15MPa), every strain 5ml (leave dual sides is all sprayed onto position) during inoculum concentration, postvaccinal vegetable material dries naturally, move to relative moisture >=75%, the climatic cabinate of 30 DEG C, spray medicine is carried out again after 3d, 14d investigates and records scab sum and the lesion area of each process, calculate disease index and control efficiency.

Pilot survey and grade scale:

Stage division, compound leaf often to be opened the percentage that leaf spot lesion area accounts for whole blade area, often repeats to look into 30 representative compound leaves.

0 grade: without scab

1 grade: lesion area accounts for less than 5% of one-piece blade area;

3 grades: lesion area accounts for the 6-15% of one-piece blade area;

5 grades: lesion area accounts for the 16-50% of one-piece blade area;

7 grades: lesion area accounts for the 26-35% of one-piece blade area;

9 grades: lesion area accounts for more than 51% of one-piece blade area;

According to each fungicidal evaluation result, adopt dosage logarithm-bacteriostasis rate machine value method to calculate and try to achieve 503nhibiting concentration, utilize Y.P.Sun and E.R.Johnson method to calculate the co-toxicity coefficient of built agent, and evaluate built agent synergistic effect according to co-toxicity coefficient size, and determine optimum proportioning.

Toxicity index (TI)=standard antiseptic agent EC50/ reagent agent EC50 × 100;

The actual toxicity index of complex preparation (ATI)=standard agent EC50/ mixture EC50;

TI × the PB of TI × PA+ single dose B of theoretical toxicity index (the TTI)=single dose A of complex preparation, (PA and PB is the percentage composition of single dose A and single dose B active ingredient in mixture respectively);

The theoretical toxicity index TTI of the actual toxicity index ATI/ mixture of complex preparation co-toxicity coefficient (CTC)=mixture;

Synergistic effect judges: be synergistic effect during CTC>120; It is antagonism during CTC<80; It is summation action during 80≤CTC≤120.

The virulence coefficient test result of table 2 complex preparation

As can be seen from the testing and analysis data of table 2, saleratus, Tea Saponin and potassium dihydrogen phosphite also have certain bacteriostatic activity to the strawberry powdery mildew selected by test separately, but fungistatic effect is all more weak, EC50 is respectively 2176.55, 1875.44 and 2413.37mg/L, but complex preparation bacteriostatic activity is obviously than saleratus, Tea Saponin and potassium dihydrogen phosphite are used alone eager to excel in whatever one does, and saleratus, mutual negative interaction is not had between Tea Saponin and potassium dihydrogen phosphite, tested proportioning is all shown as synergy, particularly the synergy of test recipe B is more obvious, co-toxicity coefficient (CTC) reaches 243.26, considerably beyond the synergy standard figures of 120, and than positive control medicine bacteriostatic activity strong.

Contrast experiment 1, the test recipe B substituted with the composition of following formula in above-described embodiment 1, detect according to mode described in embodiment 1, acquired results is as shown in the table.

Remarks illustrate: " active sterilization component " sum in following formula is all with 98% shown in " test recipe B ".

Contrast experiment's data of the similar formula of table 3

The field trial of embodiment 2, complex preparation control powdery mildew of strawberry

1 reagent agent:

Preferred compound drug: saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1% (remarks illustrate: test below is all carried out with " preferred compound drug ").

2 for studying thing:

Test site is in bridge strawberry base, Yangchuan village, Jiande City, Zhejiang Province, and kind is " red cheek ".Select that physical features is higher, the soil is porous, the convenient and draughty place of fertile soil, irrigation and drainage is experimental plot.Test alley height 20-30cm, ridge bottom width 70cm, face, ridge 50cm, the wide 25cm of furrow, whole furrow build booth after doing ridge, use sufficient base manure (total nutrient content is the nitrogen-phosphorus-potassium compound fertilizer 70 kgs/acre of 46%) before transplanting.In transplant planting on September 8, during field planting, line-spacing is 35-40cm, and cave, apart from 25-30cm, imposed the nitrogen-phosphorus-potassium compound fertilizer 50 kgs/acre that total nutrient content is 46% on October 18.December 8 started to gather, April 12 next year end of day.

3 test methods and investigation:

This test adopts pairing method arrangement, in triplicate, and plot area 20m ².Test spray pharmacy concentration is respectively 5g/l (low dosage), 7.5g/l (middle dosage) and 10g/l (high dose); Positive control medicament is , when using, concentration is 7.5g/l, establishes blank simultaneously.February 5 carried out first time dispenser, and February 15 carried out second time dispenser, and February 25 carried out third time dispenser, carried out the 4th dispenser on March 8, carried out the 5th dispenser on March 18, carried out the 6th dispenser on March 28, the investigation state of an illness and poisoning situation before each dispenser.Last dispenser terminates the latter 7 days investigation state of an illness, investigation statistics is carried out to plant height, fruit quality (soluble solid content) and per mu yield simultaneously, adopt diagonal five point sampling, often some investigation 3 strains, whole strain blade all carries out investigation classification.

Formulation rate is: 50 liters every mu (liquid medicine after dilution), each amount of application is identical.

Pilot survey and grade scale:

Stage division is often to open the percentage that leaf spot lesion area accounts for whole blade area:

0 grade: without scab

1 grade: lesion area accounts for less than 5% of one-piece blade area;

3 grades: lesion area accounts for the 6-15% of one-piece blade area;

5 grades: lesion area accounts for the 16-50% of one-piece blade area;

7 grades: lesion area accounts for the 26-35% of one-piece blade area;

9 grades: lesion area accounts for more than 51% of one-piece blade area;

As can be seen from field control effectiveness test result, preferred for this invention go out compound drug to control powdery mildew of strawberry there is effect, low after six dispensers, in and the preventive effect of high dose be respectively 53.5%, 67.2% and 73.6%, better than the control efficiency of positive control medicine Milstop under identical using dosage.

Preferred for this invention go out the whole dispenser process of compound drug in produce without poisoning, use rear From Strawberry Leaves color greener than blank, plant height improves 6-10% relatively, and disease resistance significantly improves, and in the mould fruit of the grass after harvesting, soluble solid content improves 5.8% than blank.

Table 4 sprays the impact on experimental field strawberry after different agents

Table 5 prevents and treats powdery mildew of strawberry investigation result after spraying different agents

Embodiment 3, complex preparation mend the field trial of potassium foliage fertilizer as tobacco

1 reagent agent:

Preferred compound drug: saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%.

Contrast medicine: potassium dihydrogen phosphate.

2 for studying thing and address:

Flue-cured tobacco cultivars k326, test address: Xing Shan demonstration area, Hubei Province is positioned at white mausoleum, flint ridge, Huang Liang town growing area, height above sea level 1000 meters, average annual temperature 13.3 DEG C, about 190 days frost-free season.The basic physicochemical character in experimental field is: pH value 6.55, soil organic matter content 2.55%, available nitrogen 130mg/kg, rapid available phosphorus 14.5mg/kg, available potassium 194mg/kg, chlorion 5.8mg/kg.

3 experimental scheme:

Test sets up 3 process separately, randomised block design, repeats for 3 times, totally 9 communities.The shape of community is rectangle, plot area 20 square metres, and every community plants cigarette 30 strain, arranges protection row between community.Field operation is undertaken by local sound tobacco growing technology specification, and mu executes purity nitrogen 8 kilograms, N:P ₂o ₅: K ₂the ratio of O is 1:1.2:2.4.In order to ensure experiment condition uniformity, the fertilising of each experimental plot, sow, pour water, intertill and clean tillage, bind, prune, press down the operations such as bud and all completed in 1 day.

4 contents of the test:

Table 6 complex preparation mends the field experimental design of potassium foliage fertilizer as tobacco

Note: every mu is used medicine is 50 liters (aqueous solution of the rear medicament of dilution).Except prosperous long-term fertilization 2 times, group's phase, prosperous long early stage all apply fertilizer once.

The mensuration of 4.1 experimental field different growing tobacco agronomy character:

After the flue-cured tobacco transplanting of experimental field 30 days, 45 days, Topping Stage and adopt roasting before observe each process tobacco agronomy character of record, economical character measures and carries out according to " YC/T142-2010 tobacco economical character investigation measurement way " standard, and main testing index is that stem is high, stem girth and leaf-area coefficient.

Table 7 field trial respectively processes economical character measurement result

As can be seen from table 7 field trial economical character test result, preferred for this invention go out compound drug can significantly improve cigarette kind economical character.Wherein leaf-area coefficient improves 9.46% than blank process, also 4.98% is improved than the process of positive control potassium dihydrogen phosphate, bottom leaf is greener more abundant, " mending potassium composition " of the present invention is used in explanation can promote that cigarette strain plant height stem girth is grown, blade increases, and slows down the nutrition leak of tobacco bottom leaf.

The investigation of 4.2 raising tobacco disease resistance performances:

Tobacco is adopted the roasting phase and carries out testing the condition survey of each process field natural occurrence, and investigation method is with reference to " tobacco disease insect pest classification and investigation method " (GB/T23222).As can be seen from investigation result, use " mending potassium composition " of the present invention and can significantly improve tobacco disease resistance ability, reduce the incidence of disease of powdery mildew, rust and common mosaic.After process, Powdery Mildew in Tobacco, rust and the common mosaic incidence of disease are 1.2,0.6 and 1.3 (%), and concrete condition is as described in Table 8.

Table 8 different disposal is on the impact of Tobacco resistance

The qualitative effects investigation of 4.3 pairs of tobacco tobacco leaves:

The tobacco leaf that experimental plot respectively processes list respectively adopt roasting, classification meter produces, research different disposal, on the impact of quality of tobacco, detects each community tobacco leaf weight per leaf, and carries out the analysis of the indexs such as total Soluble Sugar, reducing sugar, nicotine, total nitrogen, phosphorus and potassium content to each test process tobacco leaf.

Table 9 different disposal is on the impact of medium grade cigarette ratio on flue-cured tobacco

As can be seen from table 9 investigation result, use " mending potassium composition " of the present invention foliage fertilizer and can improve medium grade cigarette ratio on flue-cured tobacco, compare with blank, the ratio of better-than-average tobacco leaf can improve 9%, remarkable benefit.

Remarks illustrate: the judgement of " medium grade cigarette " of above-mentioned quality of tobacco carries out according to " People's Republic of China's flue-cured tobacco national standard " (GB/T2635-92).

Table 10 different disposal is on the impact of cured tobacco leaf chemical quality

As can be seen from the test result of table 10, use " mending potassium composition " of the present invention foliage fertilizer, the content of its total sugar and reducing sugar can be improved a little; Total nitrogen and nicotine content have attenuating trend, but otherness is not remarkable; Ligroin extraction and potassium content significantly improve, potassium content upper, in and lower portion blade in be more evenly distributed, can reduce the loss of potassium in sheet in bottom, significantly reduce the ratio of inferior tobacco leaf, quality of tobacco is better.

Contrast experiment 2,

Following 4 comparative formula are set:

Comparative formula I: saleratus 81.7%, Tea Saponin 16.3%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%;

Comparative formula II: saleratus 88.6%, potassium dihydrogen phosphite 9.4, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%;

Comparative formula III: saleratus 75%, Tea Saponin 15% and potassium dihydrogen phosphate 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%);

Comparative formula IV: saleratus 75%, Docusate Sodium 15% and potassium dihydrogen phosphite 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%.

By above-mentioned comparative formula I, comparative formula II, comparative formula III, comparative formula IV, " trial drug " in alternate embodiment 3, namely detects according to method described in embodiment 3.Result is as follows:

Table 11, different disposal are on the impact of Tobacco resistance

Table 12, the impact of contrast process on medium grade cigarette ratio on flue-cured tobacco

From contrast experiment, trial drug of the present invention is effective, composite successful.

Embodiment 4, control tobacco diseases contrast experiment

Embodiment 3 complex preparation as tobacco mend potassium foliage fertilizer field trial in find, use " mending potassium composition " of the present invention and can significantly improve tobacco disease resistance ability, reduce powdery mildew, the incidence of disease of rust and common mosaic, Powdery Mildew in Tobacco after process, rust and the common mosaic incidence of disease are 1.2%, 0.6% and 1.3%, this is the result that we did not expect originally, it can or can not be saleratus, Tea Saponin, potassium dihydrogen phosphite is natively to Powdery Mildew in Tobacco, do rust and common mosaic just have good preventive effect? We conducted contrast experiment.

Experimental technique, with embodiment 3, with " trial drug " in saleratus, Tea Saponin, potassium dihydrogen phosphite and positive control medicine Milstop alternate embodiment 3, namely detects according to method described in embodiment 3.

Table 13 contrasts the impact of process on Tobacco resistance

As can be seen from contrast process test data of experiment table 13, saleratus, Tea Saponin, the potassium dihydrogen phosphite control efficiency to Powdery Mildew in Tobacco, rust and common mosaic is unsatisfactory, and the control efficiency of benefit potassium composition of the present invention is obvious, than the better effects if of positive control medicine Milstop.

Embodiment 5: crop mends the preparation of potassium composition soluble powder

Of the present inventionly comprise Tea Saponin, saleratus, phosphorous acid hydrogen salt and potentiating adjuvant therefore Bactericidal composite composition formula following (being mass percent): saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%.

Crop mends potassium composition soluble powder preparation method contrast experiment:

Control methods I: according to the requirement of formula, take saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix;

Control methods II: according to the requirement of formula, take saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix, be crushed to full by 80 mesh sieves with cracker;

Control methods III: according to the requirement of formula, take saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix, be crushed to full by 80 mesh sieves with cracker, and then pulverize 30 minutes by jet-impingement;

Control methods IV: according to the requirement of formula, take saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram respectively.To be crushed to full by 80 mesh sieves after 75 kilograms of saleratus and 8 kilograms of phosphorous acid hydrogen salt mixings; Be crushed to full by 80 mesh sieves after 15 kilograms of Tea Saponins, 1 kilogram of light magnesium oxide, 0.9 kilogram of White Carbon black and 0.1 kilogram of nano-titanium oxide mixing; Then they are mixed, pulverize 30 minutes by jet-impingement.

Remarks illustrate: the corresponding process parameters that jet-impingement is pulverized is: expulsion pressure is 12MPa, 30 minutes time.

Test above-mentioned experiment soluble powder sample, index is mobility, dissolubility and dispersiveness.

100 grams of test samples full by nozzle diameter be the funnel required time of 12mm to evaluate mobility, the time is longer, and to represent mobility poorer.

1 gram of sample CL time in 50 grams of water of dropping into evaluates solubility property, and the time is longer, and to represent dissolubility poorer.

Dispersed by visualization, see whether sample lumps.

The soluble powder quantitative measurement of table 14 different processing methods

Project	Mobile performance	Solubility property	Dispersive property
				Control methods I	143 seconds	326 seconds	Caking is serious
Control methods II	121 seconds	138 seconds	Part caking
				Control methods III	96 seconds	48 seconds	Good dispersion, does not lump
Control methods IV	76 seconds	36 seconds	Good dispersion, does not lump
				Contrast medicine Milstop	124 seconds	149 seconds	Part caking

Finally, it is also to be noted that what enumerate above is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.

Claims (8)

1. the crop with bactericidal action mends potassium composition, it is characterized in that: said composition is grouped into by the one-tenth of following weight content:

Described saleratus, Tea Saponin and phosphorous acid hydrogen salt constitute the active sterilization component of composition.

2. the crop with bactericidal action according to claim 1 mends potassium composition, it is characterized in that:

Described potentiating adjuvant therefore comprises mineral salt anticaking agent and synergist; Described mineral salt anticaking agent is made up of light magnesium oxide and White Carbon black, and described synergist is nano-titanium oxide;

Or potentiating adjuvant therefore is silica.

3. the crop with bactericidal action according to claim 2 mends potassium composition, it is characterized in that: said composition is grouped into by the one-tenth of following weight content:

4. the crop with bactericidal action according to claim 1,2 or 3 mends potassium composition, it is characterized in that: described phosphorous acid hydrogen salt is potassium dihydrogen phosphite.

5. the crop with bactericidal action according to claim 4 mends potassium composition, it is characterized in that: described White Carbon black is Fumed silica.

6. the crop as described in as arbitrary in claim 1-5 mends the purposes of potassium composition, it is characterized in that: be following at least one purposes:

For preventing and treating strawberry or Powdery Mildew in Tobacco, Alternaria alternate or common mosaic;

Potassium foliage fertilizer is mended as tobacco;

Promote that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

7. the crop as described in as arbitrary in claim 1-5 mends the preparation method of potassium composition, it is characterized in that comprising the steps:

1), will be crushed to by 80 mesh sieves after saleratus and the mixing of phosphorous acid hydrogen salt;

2), will be crushed to by 80 mesh sieves after Tea Saponin and potentiating adjuvant therefore mixing;

3), by step 1) gains and step 2) gains proportionally mix, spray and pulverize, and the crop must with bactericidal action mends potassium composition.

8. crop according to claim 7 mends the preparation method of potassium composition, it is characterized in that: described injection pulverizing is: expulsion pressure is 12MPa, 30 minutes time.