CN1603286A - Method for producing organic and inorganic compound slow release fertilizer - Google Patents
Method for producing organic and inorganic compound slow release fertilizer Download PDFInfo
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- CN1603286A CN1603286A CN 200410078164 CN200410078164A CN1603286A CN 1603286 A CN1603286 A CN 1603286A CN 200410078164 CN200410078164 CN 200410078164 CN 200410078164 A CN200410078164 A CN 200410078164A CN 1603286 A CN1603286 A CN 1603286A
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- slow release
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229910010272 inorganic material Inorganic materials 0.000 title claims description 28
- 150000002894 organic compounds Chemical class 0.000 title claims description 16
- 150000002484 inorganic compounds Chemical class 0.000 title claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 238000005469 granulation Methods 0.000 claims abstract description 14
- 230000003179 granulation Effects 0.000 claims abstract description 14
- 229920002472 Starch Polymers 0.000 claims abstract description 12
- 239000008107 starch Substances 0.000 claims abstract description 12
- 239000004021 humic acid Substances 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011591 potassium Substances 0.000 claims abstract description 6
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 6
- 239000003245 coal Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 67
- 238000000576 coating method Methods 0.000 claims description 44
- 239000000853 adhesive Substances 0.000 claims description 31
- 230000001070 adhesive effect Effects 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 18
- 239000002699 waste material Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000000855 fermentation Methods 0.000 claims description 7
- 230000004151 fermentation Effects 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 229920001732 Lignosulfonate Polymers 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 235000019357 lignosulphonate Nutrition 0.000 claims description 6
- 239000011368 organic material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000012452 mother liquor Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 238000007601 warm air drying Methods 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 210000003608 fece Anatomy 0.000 abstract description 7
- 229910021432 inorganic complex Inorganic materials 0.000 abstract description 4
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000008187 granular material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000010871 livestock manure Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 4
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 235000019837 monoammonium phosphate Nutrition 0.000 description 4
- 239000006012 monoammonium phosphate Substances 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 239000003895 organic fertilizer Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 244000144972 livestock Species 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
- 244000144977 poultry Species 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010006 flight Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009329 organic farming Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
This invention discloses production of organic complex fertilizer by organic complex fertilizer granulation bonding agent CF2, the material are scale animal feces that fermented or weathered coal and nitrogen, phosphor, potassium fertilizer. Envelope agent that released at different time interval are used, depleted plastic-starch mixed polymer cementing envelope agent, clay-polyester mixed polymer cementing envelope agent, sulphonation woody cementing envelope agent, humic acid style mixed polymer cementing envelope agent, and organic-inorganic complex mixed slow release fertilizer is generated to be used on all kinds of crops.
Description
The invention belongs to agricultural, ecotope field.
1. background of invention
Organic fertilizer itself is exactly the fertilizer that a kind of nutrient slowly discharges.Its research is divided into three phases:
(1) traditional organic fertilizer stage
China peasant uses organic fertilizer to have history in several thousand, sets up a whole set of sophisticated collected manure, composting, guarantor's fertilizer, uses fertile technology.
(2) fertilizer and chemical fertilizer compounding application stage
Since the late 1960s and the beginning of the seventies, China greatly develops chemical fertilizer, and China has entered the stage of fertilizer and chemical fertilizer compounding application from Organic farming.
(3) the organic-inorganic compound mixed fertilizer stage
The eighties in 20th century, China's mass-producing livestock and poultry farm tempo is very fast, and organic waste batch production processing and organic fertilizer commercialization become new research topic.The Ministry of Agriculture and former State Scientific and Technological Commission are respectively in " eight or five " and " 95 " project verification research, and it is Zhang Fudao per capita that its problem is presided over, and particularly during " 95 " tackling of key scientific and technical problems, have developed organic fermentation materials adhesive for granulating, for the production of mixed organic manure is laid a good foundation.And patent of invention, application number 02123522.8 have been declared on July 2nd, 2002.
2. purpose of the present invention
(1) organic-inorganic compound mixed fertilizer has solved granulation and the commercialization problem behind the mass-producing livestock and poultry farm manure fermentation; though it is slow that the fertilizer nitrogen release rate in the organic-inorganic compound mixed fertilizer discharges than pure fertilizer nitrogen; but it is faster than slow release fertilizer nitrogen release rate; be necessary to carry out technology upgrading, make organic-inorganic compound mixed fertilizer upgrade to the organic and inorganic slow release fertilizer.
(2) present slow release fertilizer both domestic and external is chemical fertilizer, lacks organic composition, long-term application, and it is unfavorable that soil physical and chemical property is improved.
3. technical scheme of the present invention
Organic materials behind the fermentation maturity or the weathered coal behind crushing screening are mixed with nitrogen, phosphorus, potassium fertilizer in proportion, add adhesive for granulating CF2 used in the present invention, adopt the production of compound fertilizer general-purpose equipment, by granulation, drying, screening, obtain rounded grain shape organic-inorganic compound mixed fertilizer; With fertile slow special-purpose the rotation in the coating cylinder provided by the present invention that add of above particle, spray the coating cementing agent aqueous solution that dilutes to particle surface, use the talcum powder face powder also again through warm air drying.
4. detailed description of the present invention
Principle of the present invention is that (content of humic acid is more than 50% with the organic materials behind the fermentation maturity (feces of livestock and poultry and crop material) or weathered coal, pulverized 100 mesh sieve holes, sieve diameter 0.149mm) with nitrogen, phosphorus, potassium fertilizer even blend, use adhesive for granulating CF2 granulation, dry, sieve, become organic-inorganic compound mixed fertilizer; Select the garden particle organic-inorganic compound mixed fertilizer of diameter 1-5mm, use different time sections to discharge the coating cementing agent coating of nutrient, promptly become adhesive coating type organic and inorganic compound slow release fertilizer, thereby prolong the time of releasing of nitrogen in the composite fertilizer.
The main technique route:
Accompanying drawing 1 is seen in the organic and inorganic compound slow release fertilizer technical process.
1) selection of coating cementing agent
(1) adhesive for granulating CF2 (number of patent application: 02123522.8, publication number: CN1390812A)
(2) waste plastic-starch mix the polymers adhesive coating agent (number of patent application: 02125678.0, publication number: CN1388169A)
(3) clay-polyester mixed polymer adhesive coating agent (number of patent application: 02126009.5, publication number: CN1414033A)
(4) the sulfonated lignin adhesive coating agent (number of patent application: 02149247.6, publication number: CN1417173A)
(5) humic acids mix the polymers adhesive coating agent (number of patent application: 02123975.4, publication number: CN1390877A)
Use adhesive for granulating to prepare organic-inorganic compound mixed fertilizer, again with above-mentioned coating cementing agent parcel preparation organic and inorganic compound slow release fertilizer, in order to estimate the sustained release performance of each fertilizer nitrogen nutrient, adopt soil to annotate the intermittent leaching method (referring to Paramasivam S and A.K.Ara, Nitrogn recovery from controlled release fertilizers underintermittent leaching and dry cyclings[J] .Soil Sci., 1997,162:447-453.), the results are shown in Table 1.
The nitrogen accumulation drenches rate (%) in table 1 earth pillar
| Fertilizer variety | ???2d | ???4d | ???6d | ???8d | ???14d | ???20d |
| Deng the NPK chemical fertilizer | ??4.01 | ??6.73 | ??8.37 | ??9.80 | ??12.59 | ??15.46 |
| CF2 bonds fertile | ??2.65 | ??3.58 | ??4.31 | ??5.81 | ??7.01 | ??8.20 |
| Waste plastic-starch mixes the polymers coat fertilizer | ??1.85 | ??2.67 | ??3.32 | ??3.80 | ??4.25 | ??5.04 |
| Clay-polyester mixed polymer coat fertilizer | ??2.5 | ??3.15 | ??4.30 | ??4.87 | ??6.17 | ??6.98 |
| Sulfonated lignin mixes the polymers coat fertilizer | ??1.42 | ??2.19 | ??3.01 | ??3.53 | ??4.85 | ??5.57 |
| Humic acids mixes the polymers coat fertilizer | ??1.93 | ??2.62 | ??3.32 | ??3.78 | ??4.91 | ??5.81 |
Earth pillar water wash result, it is minimum that 20 days nitrogen accumulative total leaching rates mix the polymers coat fertilizer with waste plastic-starch, secondly mix polymers coat fertilizer and the mixed polymers coat fertilizer of humic acids for sulfonated lignin, secondly be clay-polyester mixed polymer coat fertilizer again, the glued fertile nitrogen accumulative total leaching rate of adhesive for granulating CF2 is higher, but, illustrate that CF2 binding type organic-inorganic compound mixed fertilizer has certain slow release effect far below waiting NPK chemical fertilizer.After explanation is simultaneously wrapped up with above coating cementing agent, can prolong the time of releasing of nitrogen in the fertilizer.These 4 kinds of coating cementing agents all can be used for the agent of organic-inorganic complex fertilizer coating.
2) organic-inorganic complex fertilizer production method
After the organic materials high-temperature aerobic fermentation becomes thoroughly decomposed, by its butt, take by weighing 40% the fermentation after organic materials, add 60% chemical fertilizer in addition, nitrogen (N), phosphorus (P
2O
5), potassium (K
2O) content can need ratio to take by weighing in Different Crop.Behind the abundant mixing of asymmetric double spiral mixer; add organic compound fertilizer pelletizing adhesive CF2; add-on is 0.5%～1% of an organic and inorganic mixture butt quality; fully behind the mixing; send into granulation in the rotary drum granulator with rotary conveyor; enter rotary drying drum then, rotary course is actual to be again granulation process.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
3) method for producing organic and inorganic compound slow release fertilizer
(1) organic-inorganic compound mixed fertilizer coating
Select the mixed organic manure of diameter 1～5mm, slowly send into rotation coating cylinder with rotary conveyor.Drum diameter 1500mm, long 8000mm is divided into two sections, and preceding half section is the coating chamber, second half section is the face powder kiln, and the 4000mm place is welded with a semicircle baffle in the middle of inwall, and high 100mm, inwall also are welded with 12 row's material lifting flightss, the long 300mm of material lifting flights, high 150mm is staggered.Coating tube feeding end puts in one and sprays coating agent pipe, long 800mm, diameter are the 25mm stainless steel tube, and 2 shower nozzles, nozzle bore 10 μ m are installed in the pipe two ends, by in pressure pump (pressure is greater than the 0.4Mpa) ascending pipe, be vaporific sprinkling (seeing accompanying drawing 2) behind 5 times of the coating agent dilute with waters.The organic-inorganic compound mixed fertilizer rounded grain rotates in rotor on one side and raises up, and sprays vaporific coating cementing agent on one side, to fertiliser granulates surperficial complete moistening till.Coating cementing agent mother liquor consumption is the 1%-3% of the fertile butt quality of compound.
(2) face powder is dry
Compound fertilizer behind the coating enters the face powder chamber by middle baffle, and applying medicinal powder feeds the face powder chamber for pulverizing the talcum powder that 200 mesh sieve holes (sieve diameter 0.074mm) are crossed in the back through the face powder pipe.Moistening fertiliser granulates rotates on one side, raises up and rolls, Yi Bian be stained with one deck talcum powder.Hot blast feeds the heating duct of rotation coating cylinder bottom, about 80 ℃-100 ℃ of wind-warm syndrome, and the fertiliser granulates behind the coating face powder flows out the coating tube after warm air drying, the dry sclerosis in surface this moment.
(3) packing of sieving
Two sections of vibrosieves, first section is the 1mm sieve aperture, and second section is the 3mm sieve aperture, and the rounded grain slow release fertilizer of diameter 1～3mm and 3～5mm packs respectively, returns granulation again less than the powder of 1mm.
5. description of drawings
Accompanying drawing 1 process flow sheet of the present invention
Accompanying drawing 2 rotation coating cylinder synoptic diagram
6. advantage of the present invention
1) equipment is simple, improves the transformation of existing Chemical Mixed Fertilizer Equipment Foundations and can produce organic and inorganic compound slow-release fertilizer.
2) slow release fertilizer had both contained the inorganic fertilizer composition, contained again organic composition, was beneficial to improvement soil.
3) can adjust according to Different Crop the ratio of nitrogen, phosphorus, potassium content to nutrient demand.
Embodiment one
1) preparation of organic-inorganic complex fertilizer
Take by weighing organic materials (the fermentation maturity fertilizer is in butt): 412kg, add urea: 286.3kg (urea contains N46%) in addition, (monoammonium phosphate contains P to monoammonium phosphate: 166.7kg
2O
545%, contain N11%), (Repone K contains K to Repone K: 125kg
2O 60%).Above raw material is added in the asymmetric double spiral mixer, fully behind the mixing, add organic compound fertilizer pelletizing adhesive CF2 (mother liquor again; solid content 10%) 10kg; fully behind the mixing, send into granulation in the rotary drum granulator, enter rotary drying drum then with rotary conveyor.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
2) preparation of organic and inorganic compound slow release fertilizer
(1) organic-inorganic compound mixed fertilizer coating
Select the mixed organic manure of diameter 1～5mm, slowly send into rotation coating cylinder with rotary conveyor.Drum diameter 1500mm, long 8000mm is divided into two sections, and preceding half section is the coating chamber, second half section is the face powder kiln, and the 4000mm place is welded with a semicircle baffle in the middle of inwall, and high 100mm, inwall also are welded with 12 row's material lifting flightss, the long 300mm of material lifting flights, high 150mm is staggered.Coating tube feeding end puts in one and sprays coating agent pipe, long 800mm, diameter are the 25mm stainless steel tube, 2 shower nozzles are installed at the pipe two ends, nozzle bore 10 μ m, coating coating cementing agent (waste plastic-starch mixes the polymers adhesive coating agent, clay-polyester mixes polymers adhesive coating agent, sulfonated lignin adhesive coating agent, the mixed polymers adhesive coating agent of humic acids): 20kg (mother liquor, solid content 20%) behind 5 times of the dilute with waters by in pressure pump (pressure is greater than the 0.4Mpa) ascending pipe, be vaporific sprinkling.The organic-inorganic compound mixed fertilizer rounded grain rotates in rotor on one side and raises up, and sprays vaporific coating cementing agent on one side, to fertiliser granulates surperficial complete moistening till.
(2) face powder is dry
Compound fertilizer behind the coating enters the face powder chamber by middle baffle, and applying medicinal powder feeds the face powder chamber for pulverizing the talcum powder 10kg that 200 mesh sieve holes (sieve diameter 0.074mm) are crossed in the back through the face powder pipe.Moistening fertiliser granulates rotates on one side, raises up and rolls, Yi Bian be stained with one deck talcum powder.Hot blast feeds the heating duct of rotation coating cylinder bottom, about 80 ℃-100 ℃ of wind-warm syndrome, and the fertiliser granulates behind the coating face powder flows out the coating tube after warm air drying, the dry sclerosis in surface this moment.
(3) packing of sieving
Two sections of vibrosieves, first section is the 1mm sieve aperture, and second section is the 3mm sieve aperture, and the rounded grain slow release fertilizer of diameter 1～3mm and 3～5mm packs respectively, returns granulation again less than the powder of 1mm.
Embodiment two
Take by weighing organic materials---weathered coal, count with butt: 412kg, add urea: 286.3kg (urea contains N46%) in addition, (monoammonium phosphate contains P to monoammonium phosphate: 166.7kg
2O
545%, contain N 11%), (Repone K contains K to Repone K: 125kg
2O 60%).Above raw material is added in the asymmetric double spiral mixer, fully behind the mixing, add organic compound fertilizer pelletizing adhesive CF2 (mother liquor again; solid content 10%) 10kg; fully behind the mixing, send into granulation in the rotary drum granulator, enter rotary drying drum then with rotary conveyor.Dry back is by the trommel screen screening, returns granulation more after crushed less than 1mm with greater than the material of 5mm.
Other production processes and condition are with embodiment 1.
Embodiment three
In the production process of embodiment one and embodiment two, replace wherein waste plastic-starch to mix the polymers adhesive coating agent with the clay of same amount-polyester mixed polymer adhesive coating agent and use as the fertile coating of compound, other production processes and condition are constant.
Embodiment four
In the production process of embodiment one and embodiment two, replace wherein waste plastic-starch to mix the polymers adhesive coating agent with the sulfonated lignin adhesive coating agent of same amount and use as the fertile coating of compound, other production processes and condition are constant.
Embodiment five
In the production process of embodiment one and embodiment two, replace waste plastic-starch wherein to mix the polymers adhesive coating agent as the fertile coating use of compound with the mixed polymers adhesive coating agent of the humic acids of same amount, other production processes and condition are constant.
Claims (5)
1. method for producing organic and inorganic compound slow release fertilizer, it is characterized in that organic materials behind the fermentation maturity or the weathered coal behind crushing screening are mixed with nitrogen, phosphorus, potassium fertilizer in proportion, add adhesive for granulating CF2 used in the present invention, adopt the production of compound fertilizer general-purpose equipment, by granulation, drying, screening, obtain rounded grain shape organic-inorganic compound mixed fertilizer; Slowly add in the special-purpose rotation coating cylinder provided by the present invention above particle is fertile, spray the coating cementing agent aqueous solution of dilution, use the talcum powder face powder and through warm air drying to particle surface.
2. method for producing organic and inorganic compound slow release fertilizer as claimed in claim 1, it is characterized in that using waste plastic-starch coating cementing agent in special use rotation coating cylinder with rounded grain organic-inorganic compound mixed fertilizer coating, coating cementing agent mother liquor usage quantity is the 1%-3% of the fertile butt quality of compound.
3. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that the clay-polyester mixed polymer adhesive coating agent with same amount replaces the mixed polymers adhesive coating agent of waste plastic-starch to use as coating.
4. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that replacing the mixed polymers adhesive coating agent of waste plastic-starch to use as coating with the sulfonated lignin adhesive coating agent of same amount.
5. as claim 1,2 described method for producing organic and inorganic compound slow release fertilizer, it is characterized in that replacing waste plastic-starch to mix the polymers adhesive coating agent with the mixed polymers adhesive coating agent of the humic acids of same amount uses as coating.
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|---|---|---|---|
| CN 200410078164 CN1603286A (en) | 2004-09-20 | 2004-09-20 | Method for producing organic and inorganic compound slow release fertilizer |
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|---|---|---|---|
| CN 200410078164 CN1603286A (en) | 2004-09-20 | 2004-09-20 | Method for producing organic and inorganic compound slow release fertilizer |
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| CN101870625A (en) * | 2010-06-12 | 2010-10-27 | 邹立基 | Method for wrapping fertilizer in soil granules and compound fertilizer prepared therefrom |
| CN101885633A (en) * | 2009-05-12 | 2010-11-17 | 李振永 | Special peanut film-coating slow-release fertilizer and preparation process thereof |
| CN101891564A (en) * | 2010-05-07 | 2010-11-24 | 四川师范大学 | A kind of preparation method of biological compound fertilizer |
| CN101357867B (en) * | 2008-08-28 | 2011-05-11 | 山东金正大生态工程股份有限公司 | Humic acid membrane wrapping control-releasing fertilizer |
| CN101337841B (en) * | 2008-08-11 | 2011-11-23 | 新疆山川秀丽生物有限公司 | Method for producing microbe fertilizer of cotton stalk |
| CN102408263A (en) * | 2011-08-19 | 2012-04-11 | 安徽统益生物科技有限公司 | Preparation method of organic-inorganic compound fertilizer |
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| CN101337841B (en) * | 2008-08-11 | 2011-11-23 | 新疆山川秀丽生物有限公司 | Method for producing microbe fertilizer of cotton stalk |
| CN101357867B (en) * | 2008-08-28 | 2011-05-11 | 山东金正大生态工程股份有限公司 | Humic acid membrane wrapping control-releasing fertilizer |
| CN101885633A (en) * | 2009-05-12 | 2010-11-17 | 李振永 | Special peanut film-coating slow-release fertilizer and preparation process thereof |
| CN101891564A (en) * | 2010-05-07 | 2010-11-24 | 四川师范大学 | A kind of preparation method of biological compound fertilizer |
| CN101870625B (en) * | 2010-06-12 | 2012-10-24 | 邹立基 | Method for wrapping fertilizer in soil granules and compound fertilizer prepared therefrom |
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