CN103601600A - Double-enzyme synergized sustain-released urea and preparation method thereof - Google Patents
Double-enzyme synergized sustain-released urea and preparation method thereof Download PDFInfo
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000004202 carbamide Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000003337 fertilizer Substances 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 239000011573 trace mineral Substances 0.000 claims abstract description 15
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 15
- 150000001413 amino acids Chemical class 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 7
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 5
- -1 cover sealing Substances 0.000 claims abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 5
- 239000010452 phosphate Substances 0.000 claims abstract description 5
- 239000002686 phosphate fertilizer Substances 0.000 claims abstract description 3
- 102000004190 Enzymes Human genes 0.000 claims description 22
- 108090000790 Enzymes Proteins 0.000 claims description 22
- 230000002195 synergetic effect Effects 0.000 claims description 19
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims description 15
- 235000001014 amino acid Nutrition 0.000 claims description 14
- 230000007062 hydrolysis Effects 0.000 claims description 7
- 238000006460 hydrolysis reaction Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000005755 formation reaction Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000005996 Blood meal Substances 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 210000003746 feather Anatomy 0.000 claims description 2
- 238000000855 fermentation Methods 0.000 claims description 2
- 230000004151 fermentation Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 244000005700 microbiome Species 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 239000002367 phosphate rock Substances 0.000 claims description 2
- 229920001184 polypeptide Polymers 0.000 claims description 2
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 2
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 235000015097 nutrients Nutrition 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 208000031968 Cadaver Diseases 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 208000035240 Disease Resistance Diseases 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 230000003213 activating effect Effects 0.000 abstract 1
- 230000003698 anagen phase Effects 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 42
- 238000002474 experimental method Methods 0.000 description 12
- 240000008042 Zea mays Species 0.000 description 7
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 7
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 7
- 235000005822 corn Nutrition 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000000618 nitrogen fertilizer Substances 0.000 description 3
- 230000014075 nitrogen utilization Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Fertilizers (AREA)
Abstract
The invention discloses a double-enzyme synergized sustain-released urea and a preparation method thereof. The double-enzyme synergized sustain-released urea is composed of urea, amino acid trace element chelates, and biological calcium, magnesium and phosphate fertilizer, and is prepared by the following processes of polishing, acidizing, coating, cover sealing, and powder applying. The urea can improve the utilization rate of nutrients in fertilizer, is capable of activating nutrients solidified in soils such as nitrogen, phosphate, potassium, and the like to make the nutrients to be absorbed and utilized by crops, and really achieves the goals of saving fertilizer and enhancing fertilizing effect. Other than the function of improving the fertilizer utilization rate and fertilizing effect, the double-enzyme synergized urea also has a self-biological control function, is capable of automatically controlling the releasing speeds of various nutrients according to the fertilizer requirement characteristic of crops in different growth phases so as to avoid the phenomenon that the crops overly grow in the front period, and the fertilizer is not adequate for the corps in the later period, can improve the disease resistance, stress resistance, and weatherability of the crops, and greatly reduces the affects brought by various disasters on the crops.
Description
Technical field
The present invention relates to fertilizer production technology field, relate in particular to the two enzyme Synergistic slow release urea of a kind of new-type fertilizer and preparation method.
Background technology
In the measure of agricultural produce, applying chemical fertilizer is the key of volume increase stable yields.Urea, because nitrogen content is high, be particulate state, use convenience, becomes the principal mode of current world Fertilizer.In China's nitrogenous fertilizer, the ratio of urea is also in continuous rising.Therefore, when agriculture production more and more relies on urea, some problems that common urea in use exists are more and more serious, and the Application and Development of new urea is imperative.
The one, the low fertilizer efficiency of urea utilization ratio runs off serious.After common urea is manured into soil, only need a few hours just can all dissolve, then, under the effect of urine enzyme and nitrifying ferment, be decomposed into ammonia-state nitrogen and nitric nitrogen, could utilization absorbed by crops.Short due to dissolving, ammonification, nitrated three process times used, crop can only absorb part nitrogen, all the other most of nitrogens by the loss of the aqueous solution, the volatilization of gaseous ammonia, several modes of denitration lose.People's application in recent years
15n tracer technique research discovery, in top application situation, in urea, the utilization ratio of nitrogen on average only has 35%, and the part remaining in soil accounts for 10%-40%, the 10%-30% of gaseous loss, the about 5%-10% of leaching loss.
The 2nd, nitrogen loss threatening environment, pollutes.Use in the process of urea, a large amount of losses of nitrogen, not only cause huge financial loss, and contaminate environment.Data shows that farmland brings the nitrogen of surface water body into through stream, accounts for mankind's activity and enters 51% of water body nitrogen; This loss in nitrogen fertilizer application area than the high 3-10 in nitrogen fertilizer application area not doubly.The ammonia-state nitrogen running off causes that with bay body eutrophication or vertical seepage enter Water table and cause polluted by nitrogen with nitric nitrogen inflow river, lake, inland sea, makes ground water degradation.The environmental problem that so a large amount of nitrogen losses causes can not be ignored.
Summary of the invention
The object of this invention is to provide a kind of pair of enzyme Synergistic slow release urea and preparation method.
The object of the invention is to be achieved through the following technical solutions, this pair of enzyme Synergistic slow release urea comprises urea, Chelates of Amino Acids And Trace Elements, biological calcium magnesium phosphorius fertilizer etc., and its preparation method comprises the following steps:
(1) polishing: common urea is inputted in rotating disk or rotary drum, and rolling certain hour, grinds off burr corner angle, is beneficial to coating;
(2) acidifying: the granulated fertilizer of polishing is quantitatively inputted in acidifying rotating disk, sprayed into the phosphoric acid of proportion 1.5 left and right with the rotation limit, rotating speed limit of 40r/min, its consumption is granulated fertilizer 2.7%;
(3) coating: coating agent is mixed by fused(calcium magnesium)phosphate and Chelates of Amino Acids And Trace Elements, ratio 1: 3-5.Granulated fertilizer after acidifying is inputted in coating rotating disk immediately, rotation limit, speed limit with 15r/min is sprinkled into coating agent (particle diameter > 180 μ m), its consumption accounts for the 10-15% of granulated fertilizer weight, film formation reaction is very fast, about 5min gets final product discharging, and sieve removes unnecessary biological calcium magnesium phosphorius fertilizer;
(4) front cover: after urea coated, its nitrogen release rate is still very fast, for further controlling and make its slowly-releasing, adopts the paraffin one pitch fused solution of 1: 1 to carry out front cover, and its consumption accounts for the 3%-5% of fertilizer;
(5) face powder: be anti-fertilizer agglomeration, the pellet after front cover adds a small amount of biological calcium magnesium phosphorius fertilizer to apply powder as amendment immediately, then sieve goes unnecessary powder just to obtain two enzyme Synergistic slow release urea products.The technical indicator of two enzyme Synergistic slow release urea that method is produced is thus: outward appearance is grey karyomorphism particle, the heavy 1.0-1.29 of simple grain, and free flowability is good, prevented from caking, particle is solid, is difficult for broken.Containing total nitrogen, be 3.8%, phosphorus 5.15%, wherein instant phosphorus accounts for 4.10%, also contains the putamina water resistant component that reactive amorphous calcium magnesium phosphoric acid salt, silica gel vitreum etc. form.
The preparation method of described Chelates of Amino Acids And Trace Elements: hydrolysis aminoacids complex mixes with trace element for 3: 1 in molar ratio, regulate after suitable ph value, the 1h that refluxes under 100 ℃ of conditions completes chelatropic reaction, be cooled to 45 ℃, add biological polypeptide enzyme, carry out 6h reaction, last concentrate drying, obtains chelated trace element of compound amino acid again.
Described hydrolysis aminoacids complex is made by the hydrolysis of animal blood meal, feather etc.
Described trace element comprises iron, molybdenum, copper, boron, manganese, zinc of plant needs etc.
Described biological calcium magnesium phosphorius fertilizer, is to take natural ground phosphate rock as raw material, using natural zeolite powder and the gamma-polyglutamic acid-that produced by microorganism fermentation as activation adsorption agent, three is mixed according to a certain percentage, by stirring or grind a kind of phosphate fertilizer making.
Beneficial effect of the present invention:
(1) nitrogen release rate can be controlled.Fused(calcium magnesium)phosphate putamina contains the hole that many diameters are 0.02-0.03mm, and nutrient discharges by these apertures, therefore can, according to different situations, utilize the release of the consumption control nutrient of cover material.(2) affected by soil pH value less for nitrogen release rate, and applicable soil property scope is wide.(3) fertilizer efficiency is subject to the impact of soil moisture to have certain scope, and when soil is during in water saturation or waterflooding state, its release rate declines on the contrary, has effectively stoped leaching loss.(4) fertilizer efficiency is better than sulfur coating urea and isobutyl is pitched two arteries and veins, sustainable 3 months, be suitable for using as base manure, avoided the trouble of later stage fertilising.
Field test data
1, test method, adopts pot experiment and two kinds of modes of plot experiment.
Pot experiment: two processing are set, the common urea of weight such as (1) and two enzyme Synergistic slow release urea (being called for short two enzymuria elements), every basin is all used 15 grams, and nitrogen amounts such as (2) is processed, 16.5 grams, the every basin of common urea consumption, 20 grams, the every basin of two enzymuria element.
Plot experiment: community area is 33.3m
2, two processing are set, weight such as (1): 30 kilograms/667m of common urea consumption
2, 30 kilograms/667m of two enzyme Synergistic slow release amount of urea
2; (2) the nitrogen amount such as: 29 kilograms/667m of common urea consumption
2, 35 kilograms/667m of two enzyme Synergistic slow release amount of urea
2.In triplicate, random district group is arranged.
2, results and analysis
Results from pot experiment test: date of seeding is April 15, measured August 28, the results are shown in Table 1.
The comparison of table 1 results from pot experiment test
The number of blade, biological yield two aspect common ureas, not as two enzymurias elements, show that two enzymurias have reserve strength, final, two enzymuria elements with etc. the common urea of weight compare, not only can promote the growth of blade, and improve biological yield, increase production 6.1%.
Two enzymuria elements of nitrogen amount such as executing compares with waiting common urea of nitrogen amount, corn is all high at aspects such as plant height, the number of blade, lateral root number, biological yields, especially on biological yield, increase production 10.9%, illustrate that the processing of nitrogen amounts such as executing is than the processing of weight such as executing, corn yield increasing amplitude is large.
Its reason may have three, and the one, Deng the processing of nitrogen amount, two enzymuria elements are larger than common urea consumption; The 2nd, the utilization ratio of two enzymuria elements is higher than common urea; The 3rd, the reserve strength of two enzymuria elements is larger than common urea, is more conducive to the accumulation of corn later stage dry-matter.
Plot experiment result:
The corn seeding date is April 30, takes conventional field management, in results on August 31, and Economic Characters has been carried out to species test, and it the results are shown in Table 2.
The comparison of table 2 plot experiment result
From the data of table 2, can find out, though be etc. weight or etc. common urea or two enzymuria element of nitrogen amount, two enzymuria elements all show volume increase than common urea, and grain number per spike and 100-grain weight equal yield line integrant obviously increase, illustrate that the prolongation of two enzymuria element fertilizer efficiency periods has reserve strength, contribute to the grouting of corn kernel and the formation of output, thereby increase production than common urea.
3, soil nitrogen and N-fertilizer efficiency measurement result
In order to further illustrate the changing conditions of using two enzymurias element utilization ratios, test has measured respectively again that in the content of soil nitrogen in pot experiment and plot experiment, corn is to nitrogen utilization efficiency changing conditions, and measurement result is in Table 3.
Table 3 soil nitrogen and N-fertilizer efficiency measurement result
No matter be pot experiment or plot experiment, use two enzymuria elements all than common urea volume increase, amount of increase in production 6%-16%, thus demonstrate the advantage of two enzymuria elements.Meanwhile, use after two enzymuria elements, no matter be the nitrogen utilization efficiency in soil, or the nitrogen utilization efficiency of two enzymurias elements itself has had and has significantly improved, suppressed the activity of urase, slowed down the hydrolysis rate of urea, extend fertilizer efficiency period, be conducive to the formation of corn later stage output.
Embodiment
Embodiment mono-: take urea 1000kg, Chelates of Amino Acids And Trace Elements, biological calcium magnesium phosphorius fertilizer etc., its preparation method comprises the following steps:
(1) polishing: by common urea 1000kg input rotating disk or rotary drum, rolling certain hour, grinds off burr corner angle, is beneficial to coating;
(2) acidifying: the granulated fertilizer of polishing is quantitatively inputted in acidifying rotating disk, sprayed into the 27kg phosphoric acid of proportion 1.5 left and right with the rotation limit, rotating speed limit of 40r/min;
(3) coating: coating agent is mixed by 50kg Chelates of Amino Acids And Trace Elements and 150kg fused(calcium magnesium)phosphate, granulated fertilizer after acidifying is inputted in coating rotating disk immediately, rotation limit, speed limit with 15r/min is sprinkled into coating agent (particle diameter >180 μ m), film formation reaction is very fast, about 5min gets final product discharging, and sieve removes unnecessary biological calcium magnesium phosphorius fertilizer;
(4) front cover: after urea coated, its nitrogen release rate is still very fast, for further controlling and make its slowly-releasing, adopts the paraffin one pitch fused solution 40kg of 1:1 to carry out front cover;
(5) face powder: be anti-fertilizer agglomeration, the pellet after front cover adds a small amount of biological calcium magnesium phosphorius fertilizer to apply powder as amendment immediately, then sieve goes unnecessary powder just to obtain two enzyme Synergistic slow release urea products.The technical indicator of two enzyme Synergistic slow release urea that method is produced is thus: outward appearance is grey karyomorphism particle, the heavy 1.0-1.30 of simple grain, and free flowability is good, prevented from caking, particle is solid, is difficult for broken.Containing total nitrogen, be 3.8%, phosphorus 5.15%, wherein instant phosphorus accounts for 4.10%, also contains the putamina water resistant component that reactive amorphous calcium magnesium phosphoric acid salt, silica gel vitreum etc. form.
Claims (6)
1. a two enzyme Synergistic slow release urea, is characterized in that this pair of enzyme Synergistic slow release urea comprises urea, Chelates of Amino Acids And Trace Elements, biological calcium magnesium phosphorius fertilizer.
2. a kind of pair of enzyme Synergistic slow release urea according to claim 1, the preparation method who it is characterized in that Chelates of Amino Acids And Trace Elements: hydrolysis aminoacids complex mixes with trace element for 3: 1 in molar ratio, regulate after suitable ph value, the 1h that refluxes under 100 ℃ of conditions completes chelatropic reaction, be cooled to 45 ℃, add biological polypeptide enzyme, then carry out 6h reaction, last concentrate drying, obtains chelated trace element of compound amino acid.
3. a kind of pair of enzyme Synergistic slow release urea according to claim 1, is characterized in that described hydrolysis aminoacids complex is made by the hydrolysis of animal blood meal, feather etc.
4. a kind of pair of enzyme Synergistic slow release urea according to claim 1, is characterized in that described trace element comprises iron, molybdenum, copper, boron, manganese, zinc of plant needs etc.
5. a kind of pair of enzyme Synergistic slow release urea according to claim 1, it is characterized in that described biological calcium magnesium phosphorius fertilizer, to take natural ground phosphate rock as raw material, the gamma-polyglutamic acid-of usining natural zeolite powder and being produced by microorganism fermentation is as activation adsorption agent, three is mixed according to a certain percentage, by stirring or grind a kind of phosphate fertilizer making.
6. a preparation method for two enzyme Synergistic slow release urea, is characterized in that comprising the following steps:
(1) polishing: common urea is inputted in rotating disk or rotary drum, and rolling certain hour, grinds off burr corner angle, is beneficial to coating;
(2) acidifying: the granulated fertilizer of polishing is quantitatively inputted in acidifying rotating disk, sprayed into the phosphoric acid of proportion 1.5 left and right with the rotation limit, rotating speed limit of 40r/min, its consumption is granulated fertilizer 2.7%;
(3) coating: coating agent is mixed by fused(calcium magnesium)phosphate and Chelates of Amino Acids And Trace Elements, ratio 1: 3-5.Granulated fertilizer after acidifying is inputted in coating rotating disk immediately, rotation limit, speed limit with 15r/min is sprinkled into coating agent (particle diameter > 180 μ m), its consumption accounts for the 10-15% of granulated fertilizer weight, film formation reaction is very fast, about 5min gets final product discharging, and sieve removes unnecessary biological calcium magnesium phosphorius fertilizer;
(4) front cover: after urea coated, its nitrogen release rate is still very fast, for further controlling and make its slowly-releasing, adopts the paraffin one pitch fused solution of 1: 1 to carry out front cover, and its consumption accounts for the 3%-5% of fertilizer;
(5) face powder: be anti-fertilizer agglomeration, the pellet after front cover adds a small amount of biological calcium magnesium phosphorius fertilizer to apply powder as amendment immediately, then sieve goes unnecessary powder just to obtain two enzyme Synergistic slow release urea products.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072315A (en) * | 2014-06-13 | 2014-10-01 | 阜阳市益盛兔业有限公司 | Biological organic composite coated slow release fertilizer containing calcium magnesium phosphate and preparation method thereof |
| CN105819928A (en) * | 2016-03-28 | 2016-08-03 | 山东禹城瑞利源科技有限公司 | Application of compound chemical fertilizer in producing functional apples |
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| JPS63134593A (en) * | 1986-11-27 | 1988-06-07 | 株式会社 テイ−・エ−・シ−・ハセガワ | Organic fertilizer, composite fertilizer from urea as raw material and manufacture |
| CN1371888A (en) * | 2001-02-19 | 2002-10-02 | 邵建华 | Compound trace element chelated fertilizer and preparation method thereof |
| WO2004002921A1 (en) * | 2002-07-01 | 2004-01-08 | Ecotech (Aust) Pty Ltd | Fertilisation of soil |
| CN1721371A (en) * | 2004-07-14 | 2006-01-18 | 大连水产学院 | Process for preparing bio-organic chelated trace fertilizer |
| CN101289335A (en) * | 2008-06-16 | 2008-10-22 | 山东农业大学 | Activated natural phosphate fertilizer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072315A (en) * | 2014-06-13 | 2014-10-01 | 阜阳市益盛兔业有限公司 | Biological organic composite coated slow release fertilizer containing calcium magnesium phosphate and preparation method thereof |
| CN105819928A (en) * | 2016-03-28 | 2016-08-03 | 山东禹城瑞利源科技有限公司 | Application of compound chemical fertilizer in producing functional apples |
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| Publication number | Publication date |
|---|---|
| CN103601600B (en) | 2015-08-19 |
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