CN103755483A - Special controlled-release fertilizer for summer maize and production method thereof - Google Patents

Special controlled-release fertilizer for summer maize and production method thereof Download PDF

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Publication number
CN103755483A
CN103755483A CN201410053926.7A CN201410053926A CN103755483A CN 103755483 A CN103755483 A CN 103755483A CN 201410053926 A CN201410053926 A CN 201410053926A CN 103755483 A CN103755483 A CN 103755483A
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fertilizer
production method
coating
urea
granulation
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CN201410053926.7A
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CN103755483B (en
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孟庆华
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Heilongjiang Bairun Fertilizer Co ltd
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Jinan Feitian Agricultural Science And Technology Co Ltd
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Abstract

The invention discloses a special controlled-release fertilizer for the summer maize and a production method of the special controlled-release fertilizer. The urea, monoammonium phosphate, potassium chloride, enricher, bentonite, magnesium oxide, zinc sulfate, ferrous sulfate, nickelous sulfate, borax and DMPP (dimethyl-phenyl-piperazinium) are pelleted to form inner-layer particles, and the outer layer is coated with lecithin/potassium polyacrylate. The fertilizer efficiency of the nitrogen fertilizer is prolonged from about 15 days to 100 days, and in addition, the fertilizer is released in a concentrated manner in the huge trumpet period of the maize, the fertilizer efficiency of the nitrogen fertilizer is prolonged greatly, and the nitrogen use efficiency of the summer maize is greatly increased.

Description

A kind of summer corn special-purpose control-release fertilizer and production method thereof
Technical field
The present invention relates to a kind of summer corn special-purpose control-release fertilizer and production method thereof, belong to technical field of fertilizers.
Background technology
About Huanghe valley summer corn general 100 days breeding times, needing fertile critical period be the typhon mouth phase, i.e. after planting (fertilizer efficiency period of urea is about 15 days) about 40 days.How by slow control film-coating technique, to realize a base and execute solution summer corn fertilizer in time of infertility needs, and nitrogenous fertilizer is concentrated release of typhon mouth phase, how to reduce cost of labor, is still one of important problem facing in production.
Utilize the coating agent such as macromolecular material to keep nitrogenous fertilizer, controlling and transforming gentle On The Drug Release is the important directions that improves fertilizer utilization efficiency.In agriculture production reality, coated fertilizer and nitrogenous fertilizer are usually used in conjunction with.But because the proportioning of dissimilar coated fertilizer and nitrogen fertilizers is unreasonable, cause coated fertilizer drought-resistant water-preserving effect to reduce, nitrogenous fertilizer maintenance and utilising efficiency are not high, affect to a certain extent the effect performance of coated fertilizer.Rationally application coated fertilizer can improve soil physical property, promotes seed germination and survival rate, reduces irrigation demand.Studies have shown that suitable coated fertilizer significantly reduces urea ammonia volatilization amount, and it is more obvious with macromolecular material consumption, to increase effect.
Summary of the invention
The present invention solves the deficiency that prior art exists, and a kind of summer corn special-purpose control-release fertilizer and production method thereof are provided, and the method is simple, and coating is effective, and fertilizer efficiency period is long, balanced in nutrition, and utilization rate of fertilizer is high, and safety and environmental protection, production cost are low, and fertilizer efficiency is remarkable.
Solving this technical problem adopted technical scheme is: a kind of summer corn special-purpose control-release fertilizer, it is characterized in that, it is with urea, monoammonium phosphate, Repone K, excellent of spy, wilkinite, magnesium oxide, zinc sulfate, ferrous sulfate, the sub-nickel of sulfuric acid, borax and DMPP(3,4-dimethyl pyrazole phosphoric acid salt) carry out forming inner layer granule after granulation; Outer with Yelkin TTS/polyacrylic acid potassium coating; The component of described inner layer granule and weight part are: urea 550~600, monoammonium phosphate 150~200, Repone K 150~200, special excellent 35, wilkinite 50, magnesium oxide 50, zinc sulfate 5, ferrous sulfate 2, the sub-nickel 2 of sulfuric acid, borax 1, DMPP 2; The component of described coated fertilizer and weight part are: Yelkin TTS 18, polyacrylic acid potassium 10 and Oleum Gossypii semen 32; The mass ratio of described inner layer granule and coated fertilizer is 100:5.5-6.5.
Production method, specific as follows:
(1) by following weight parts, take each raw material: urea 550~600, monoammonium phosphate 150~200, Repone K 150~200, special excellent 35, wilkinite 50, magnesium oxide 50, zinc sulfate 5, ferrous sulfate 2, the sub-nickel 2 of sulfuric acid, borax 1 and DMPP 2; The wherein content of main raw material: monoammonium phosphate (N 11%, P 2o 544%), Repone K (K 2o>=60%), urea (N>=46%); Special excellent is the good soil improvement agent of Taiwan Xing Nong company development and production, and effective constituent derives from 10% humic acids of weathered coal, brown coal.
First urea and DMPP are mixed, pulverized; Then add monoammonium phosphate, Repone K, excellent of spy, wilkinite, magnesium oxide, zinc sulfate, ferrous sulfate, the sub-nickel of sulfuric acid and borax, after mixing, form solid materials, then after crusher in crushing, enter rotary drum steam granulation machine granulation (vapour pressure 1.2 normal atmosphere);
(2) by conveying belt, the material input drying machine after granulation is dried, then sends into cooler and carry out cooling; 205 ~ 255 ℃ of described drying machine temperature ins, 65 ~ 85 ℃ of dry outlet material temperature; 45 ± 5 ℃ of described cooler outlet material temperature;
(3) by cooled material inputted vibration sieve, carry out the first screening, particle diameter is between the material input coating machine of 1-4mm, and all the other turn back to the crusher fragmentation again of step (1);
(4) coated fertilizer Yelkin TTS, polyacrylic acid potassium and Oleum Gossypii semen being poured in stirred pot by weight 18:10:32, after stirring is mixed, is 100:5.5-6.5 according to material and coating agent weight ratio, by hydro-pump, squeezes into coating machine spraying coating;
(5) input of the material after coating drying machine is dried, and then sends into cooler and carries out cooling; 185 ~ 200 ℃ of described drying machine temperature ins, 65 ~ 85 ℃ of dry outlet material temperature; 45 ± 5 ℃ of described cooler outlet material temperature;
(6) dried material inputted vibration sieve, sieves for the second time, is divided into macrobead, middle particle and three kinds of specifications of small-particle; Then metering packing warehouse-in.
The present invention, by polyacrylic acid potassium (A), Yelkin TTS/polyacrylic acid potassium (B) and 3 kinds of materials of Yelkin TTS (C) are kept to the research of effect rule to soil moisture, nitrogen phosphorus nutrient, finds that A type macromolecular material keeps effect best to soil moisture and phosphorus element; Type B macromolecular material is close, and C type macromolecular material effect is poor, and accumulative total leaching amount reduces 54%, 47% and 28% than contrast (normal soil) respectively; And to soil nitrogen, Type B macromolecular material fertilizer conservation effect is best, C type macromolecular material takes second place, and A type macromolecular material is the poorest, and accumulative total leaching amount reduces 79%, 77% and 54% than contrast (normal soil) respectively.Therefore select Yelkin TTS/polyacrylic acid potassium as coated fertilizer.
The invention has the beneficial effects as follows:
(1) coating agent-Yelkin TTS/polyacrylic acid potassium that the present invention uses, natural, nontoxic, pollution-free, nuisanceless, and can provide C, N and P source for soil microorganisms, and improve the structure of community of soil microorganisms, indirectly increase soil fertility;
(2) Yelkin TTS/polyacrylic acid potassium is a kind of tensio-active agent, emulsifying agent and water-holding agent preferably; not only water-soluble but also be dissolved in oil; reducing the water capillary while of oil, can on this bed interface, form the interfacial film of one deck densification, the particle disperseing is being had to provide protection.Because the effects such as the absorption of Yelkin TTS/polyacrylic acid potassium and friction make drop band point, band point drop forms double electrical layers in the both sides at interface, because making drop, the repulsive interaction of electrostatic double layer is difficult to cohesion simultaneously, thereby improved the stability of emulsion, coating effect is more satisfactory, firm and do not come off.Then by effects such as absorption, parcel, affine, chelatings, fertilizer is slowly discharged, particularly make the release period of nitrogenous fertilizer extend to 100 days, can guarantee needs in the time of infertility, need not topdress again, saved manually, realized the mechanize of summer corn fertilising.
(3) this coated fertilizer is for the fertile characteristic of need of the main summer corn soil nutrient supply present situation in Shandong Province and summer corn, the optimum formula filtering out, the fertilizer nitrogen phosphorus potassium total content>=50% (N:P producing 2o 5: K 2o=30:8:12), and contain trace element and the multiple nutrients such as Zn, balanced in nutrition, fertilizer efficiency is grown and remarkable, and quality meets GB15063-2000 standard completely.
(4) this coated fertilizer is selected slow-release material (Yelkin TTS/polyacrylic acid potassium) and controlled-release material (DMPP), the fertilizer efficiency period of nitrogenous fertilizer was brought up to 100 days from about 15 days, and concentrated release of corn typhon mouth phase, the fertilizer efficiency period of nitrogenous fertilizer and the utilization rate of nitrogen fertilizer of summer corn have greatly been improved, summer corn this season utilization rate of nitrogen fertilizer has improved 46%, and reduced the fixing of phosphorus potash fertilizer and run off, summer corn is worked as quaternary phosphonium potassium utilization rate and is improved respectively 17% and 6%.
Typical test situation is:
In Cao County, Shandong Province, Linqing and Boxing, take existing kind Zheng Dan 958 as test kind, 5000 plants/acre of planting densities, every mu of base is executed 50 kilograms of coat fertilizers of the present invention, (early stage 12 kilograms, the base manure urea take the not coating complex fertilizer of filling a prescription equally as control group, 8 kilograms of monoammonium phosphates, 10 kilograms, Repone K, 0.5 kilogram, zinc sulfate, the litmus mouth phase chases after flowering and boll-setting period and chases after 18 kilograms, urea), other fertilising is identical with control measures, control group summer corn per mu yield on three ground is respectively 678.8 kilograms, 662.5 kilograms and 627.3 kilograms, use coat fertilizer summer corn per mu yield of the present invention and be respectively 846.5 kilograms, 815.5 kilograms and 854.4 kilograms, visible, at rate of fertilizer under similar circumstances, use coat fertilizer of the present invention respectively than control group volume increase 24.7%, 23.1% and 36.2%.
Embodiment
Embodiment 1
Proportioning (kilogram): urea 580, monoammonium phosphate 160, Repone K 180, special excellent 35, wilkinite 50, magnesium oxide 50, zinc sulfate 5, ferrous sulfate 2, sulfuric acid sub-nickel 2, borax 1, Yelkin TTS 18, polyacrylic acid potassium 10 and Oleum Gossypii semen 32.
The wherein content of main raw material: monoammonium phosphate (N 11-P 2o 544), Repone K (K 2o>=60%), urea (N>=46%), Yelkin TTS/polyacrylic acid potassium purity is more than 90%.
(1) metering, stirring, fragmentation
First urea and DMPP are mixed, are pulverized; Then add monoammonium phosphate, Repone K, excellent of spy, wilkinite, magnesium oxide, zinc sulfate, ferrous sulfate, the sub-nickel of sulfuric acid and borax, after metering, mixing, form solid materials, then after fragmentation, enter the granulation of rotary drum steam granulation machine;
Urea crusher L800(ω=1200r/min); Chain breaker, post-type mixer model are respectively: XW-100, φ 3.2m.
(2) granulation
15 minutes granulation time, rotary drum steam granulation φ 2.2 × 7m, vapour pressure is 1.2 normal atmosphere.
(3) dry
By conveying belt, the material input drying machine after granulation is dried.Drying machine φ 2.2 × 24m, 205 ~ 255 ℃ of drying machine temperature ins, 65 ~ 85 ℃ of dry outlet material temperature.
(4) cooling
By conveying belt, by dried material input cooler, carry out cooling.Cooler φ 2.2 × 24m, 45 ± 5 ℃ of cooler outlet material temperature.
(5) screening
By conveying belt, cooled material inputted vibration is sieved, carry out the first screening, the material input coating machine of particle diameter between 1-4mm, it is again broken that all the other turn back to crusher.Vibratory screening apparatus model ZS-10.
(6) coating
Coated fertilizer Yelkin TTS, polyacrylic acid potassium and Oleum Gossypii semen are poured in stirred pot, after stirring is mixed, material and coating agent are squeezed into coating machine spraying coating by hydro-pump.Packing machine φ 1.2 × 8.5m; Hydro-pump CST300.
(7) input of the material after coating drying machine is dried, and then sends into cooler and carries out cooling; 185 ~ 200 ℃ of described drying machine temperature ins, 65 ~ 85 ℃ of dry outlet material temperature; 45 ± 5 ℃ of described cooler outlet material temperature.
(8) dried material inputted vibration sieve, sieves for the second time, is divided into macrobead, middle particle and three kinds of specifications of small-particle.Vibratory screening apparatus model ZS-7.
(9) metering packing.BFT-3 computer automatic quantitative packing machine.
(10) finished product warehouse-in.

Claims (5)

1. a summer corn special-purpose control-release fertilizer, is characterized in that, it is to carry out forming inner layer granule after granulation with urea, monoammonium phosphate, Repone K, excellent of spy, wilkinite, magnesium oxide, zinc sulfate, ferrous sulfate, the sub-nickel of sulfuric acid, borax and DMPP; Outer with Yelkin TTS/polyacrylic acid potassium coating; The component of described inner layer granule and weight part are: urea 550~600, monoammonium phosphate 150~200, Repone K 150~200, special excellent 35, wilkinite 50, magnesium oxide 50, zinc sulfate 5, ferrous sulfate 2, the sub-nickel 2 of sulfuric acid, borax 1, DMPP 2; The component of described coated fertilizer and weight part are: Yelkin TTS 18, polyacrylic acid potassium 10 and Oleum Gossypii semen 32; The mass ratio of described inner layer granule and coated fertilizer is 100:5.5-6.5.
2. the production method of summer corn special-purpose control-release fertilizer claimed in claim 1, is characterized in that,
(1) in ratio claimed in claim 1, get each component of inner layer granule and coated fertilizer;
First urea and DMPP are mixed, pulverized; Then add monoammonium phosphate, Repone K, excellent of spy, wilkinite, magnesium oxide, zinc sulfate, ferrous sulfate, the sub-nickel of sulfuric acid and borax, after mixing, form solid materials, then after crusher in crushing, enter the granulation of rotary drum steam granulation machine;
(2) by conveying belt, the material input drying machine after granulation is dried, then sends into cooler and carry out cooling;
(3) by cooled material inputted vibration sieve, carry out the first screening, particle diameter is between the material input coating machine of 1-4mm, and all the other turn back to the crusher fragmentation again of step (1);
(4) coated fertilizer Yelkin TTS, polyacrylic acid potassium and Oleum Gossypii semen are poured in stirred pot, after stirring is mixed, particle diameter is squeezed into coating machine spraying coating between material and the coated fertilizer of 1-4mm by hydro-pump;
(5) input of the material after coating drying machine is dried, and then sends into cooler and carries out cooling;
(6) dried material inputted vibration sieves rear metering packing.
3. production method as claimed in claim 2, is characterized in that, the drying machine temperature in of described step (2) is 205 ~ 255 ℃, and dry outlet material temperature is 65 ~ 85 ℃.
4. production method as claimed in claim 2, is characterized in that, the dry cooling machine outlet material temperature of described step (2) or (5) is 45 ± 5 ℃.
5. production method as claimed in claim 2, is characterized in that, the drying machine temperature in of described step (5) is 185 ~ 200 ℃, and dry outlet material temperature is 65 ~ 85 ℃.
CN201410053926.7A 2014-02-18 2014-02-18 A kind of Special controlled-release fertilizer for summer maize and production method thereof Expired - Fee Related CN103755483B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030803A (en) * 2014-05-23 2014-09-10 刘凯 Special controlled-release fertilizer for winter wheat and production method of fertilizer
CN105085124A (en) * 2015-07-31 2015-11-25 安徽省化工设计院 Coated water retention slow release fertilizer and preparation method thereof
CN108929148A (en) * 2017-05-27 2018-12-04 山东红日化工股份有限公司 A kind of drought-resistant water-preserving fertilizer and preparation method thereof
CN112679276A (en) * 2021-01-28 2021-04-20 平原县释乐补农业科技有限公司 Polyurethane coated urea for further improving nitrogen utilization rate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938813A (en) * 1997-01-27 1999-08-17 Sqm Nitratos, S.A. Granular coated particles containing urea and metal nitrate, and process for making the same
CN1609077A (en) * 2004-11-03 2005-04-27 中国农业科学院土壤肥料研究所 Production process of slowly/controlled releasing fertilizer for summer corn
CN102424641A (en) * 2011-09-20 2012-04-25 山东大学 Corn slow-release fertilizer
CN102491838A (en) * 2011-11-30 2012-06-13 新疆慧尔农业科技发展有限公司 Special long-acting slow release fertilizer for corn and preparation method thereof
CN103058751A (en) * 2012-12-26 2013-04-24 施可丰化工股份有限公司 Preparation method for special slow-release long-acting compound fertilizer for corn
CN103058754A (en) * 2012-12-26 2013-04-24 施可丰化工股份有限公司 Slow-release compound fertilizer applicable to plantation of corn
CN103102223A (en) * 2013-03-05 2013-05-15 孟庆华 Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938813A (en) * 1997-01-27 1999-08-17 Sqm Nitratos, S.A. Granular coated particles containing urea and metal nitrate, and process for making the same
CN1609077A (en) * 2004-11-03 2005-04-27 中国农业科学院土壤肥料研究所 Production process of slowly/controlled releasing fertilizer for summer corn
CN102424641A (en) * 2011-09-20 2012-04-25 山东大学 Corn slow-release fertilizer
CN102491838A (en) * 2011-11-30 2012-06-13 新疆慧尔农业科技发展有限公司 Special long-acting slow release fertilizer for corn and preparation method thereof
CN103058751A (en) * 2012-12-26 2013-04-24 施可丰化工股份有限公司 Preparation method for special slow-release long-acting compound fertilizer for corn
CN103058754A (en) * 2012-12-26 2013-04-24 施可丰化工股份有限公司 Slow-release compound fertilizer applicable to plantation of corn
CN103102223A (en) * 2013-03-05 2013-05-15 孟庆华 Special lecithin-coated slow release fertilizer for cotton and production method of fertilizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030803A (en) * 2014-05-23 2014-09-10 刘凯 Special controlled-release fertilizer for winter wheat and production method of fertilizer
CN105085124A (en) * 2015-07-31 2015-11-25 安徽省化工设计院 Coated water retention slow release fertilizer and preparation method thereof
CN108929148A (en) * 2017-05-27 2018-12-04 山东红日化工股份有限公司 A kind of drought-resistant water-preserving fertilizer and preparation method thereof
CN112679276A (en) * 2021-01-28 2021-04-20 平原县释乐补农业科技有限公司 Polyurethane coated urea for further improving nitrogen utilization rate

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Effective date of registration: 20201202

Address after: No.001, Chuangxin Road, Laihe Town, Shan county, Heze City, Shandong Province, 274300

Patentee after: Huang Yanhong

Address before: 250100 science and technology industry department, Ji'nan Academy of Agricultural Sciences, 202 industrial North Road, Licheng District, Shandong, Shandong

Patentee before: Meng Qinghua

Patentee before: JINAN FEITIAN AGRICULTURAL SCIENCE AND TECHNOLOGY Co.,Ltd.

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