CN102424641A - Corn slow-release fertilizer - Google Patents
Corn slow-release fertilizer Download PDFInfo
- Publication number
- CN102424641A CN102424641A CN2011102799231A CN201110279923A CN102424641A CN 102424641 A CN102424641 A CN 102424641A CN 2011102799231 A CN2011102799231 A CN 2011102799231A CN 201110279923 A CN201110279923 A CN 201110279923A CN 102424641 A CN102424641 A CN 102424641A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- release fertilizer
- corn
- slow
- corn slow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 68
- 240000008042 Zea mays Species 0.000 title claims abstract description 30
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 30
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 29
- 235000005822 corn Nutrition 0.000 title claims abstract description 29
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 10
- -1 alcohol ester Chemical class 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 9
- 229920000053 polysorbate 80 Polymers 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920003169 water-soluble polymer Polymers 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000618 nitrogen fertilizer Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 17
- 239000000839 emulsion Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- LUJQXGBDWAGQHS-UHFFFAOYSA-N ethenyl acetate;phthalic acid Chemical compound CC(=O)OC=C.OC(=O)C1=CC=CC=C1C(O)=O LUJQXGBDWAGQHS-UHFFFAOYSA-N 0.000 description 5
- 229920002744 polyvinyl acetate phthalate Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000014075 nitrogen utilization Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a corn slow-release fertilizer which is prepared by uniformly spraying a layer of water-soluble high-molecular polymer on the surface of fertilizer particles, wherein the corn slow-release fertilizer comprises (NH) in percentage by weight4)2HPO4∶K2SO4The ratio of the large granular urea to the diatomite to the high molecular polymer is 8.5-9.5: 5.5-6.5: 30-32: 8-10: 22-24. The corn slow-release fertilizer effectively overcomes nitrogen loss caused in the fertilizer application, improves the utilization rate of nitrogen fertilizer, is more favorable for the absorption and continuous utilization of crops, fully exerts the effect of the fertilizer, obviously improves the yield of corn, and accords with the policy guidance of developing resource-saving, environment-friendly, continuous and efficient agriculture.
Description
Technical field
The present invention relates to a kind of slow-release fertilizer, relate in particular to a kind of corn slow-release fertilizer.
Background technology
Corn is to need the more crop of nitrogen, needs competent nitrogenous fertilizer to supply with and could obtain higher output.But at present one of distinct issues are that nitrogen utilization efficiency is low in the use of chemical fertilizer, and the nitrogenous fertilizer that brings thus use the financial loss that caused and environmental pollution etc. in a large number.How to increase substantially the chemical nitrogen fertilizer utilization ratio and give full play to the effect of chemical fertilizer, be present development resource saving type, environmentally friendly, continue in the high-efficiency agriculture one of distinct issues.
The invention of slow release fertilizer solves to the problems referred to above and has opened up new thinking and valid approach comparatively.But; The problem that existing organic polymer coated fertilizer exists is the 1. biological non-degradable of coated fertilizer; Cause " white pollution " easily, 2. production cost is high, the crop narrow range that 3. is suitable for; Be only applicable to garden crop, lawn, golf course and ornamental plant etc., be unfavorable on food crop, applying.Given this, research and develop biodegradable, cost is low, be suitable for particularly applying on corn, wheat and the paddy rice and the slow release fertilizer that is suitable for producing in enormous quantities fast is of great importance food crop.
Summary of the invention
To the deficiency of prior art, the problem that invention will solve provides a kind of corn slow-release fertilizer.
Corn slow-release fertilizer of the present invention is to be utilized in fertile particle surface evenly to spray one deck high molecular weight water soluble polymer and process, and it is characterized in that: the component of said corn slow-release fertilizer is (NH in weight ratio
4)
2HPO
4: K
2SO
4: granular urea: zeyssatite: high molecular polymer is 8.5～9.5: 5.5～6.5: 30～32: 8～10: 22～24; Wherein: said high molecular polymer is processed by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid Vilaterm alcohol ester: tween 80: deionized water is 24: 6: 7.5: 0.15: 45.
Further, the component of above-mentioned corn slow-release fertilizer is in weight ratio, preferred (NH
4)
2HPO
4: K
2SO
4: granular urea: zeyssatite: high molecular polymer is 9: 6: 31: 9: 23.
Wherein: the preferred 1.6～2.5mm of the median size of above-mentioned granular urea.
The working method of corn slow-release fertilizer according to the invention is:
(1) takes by weighing each component by weight ratio;
(2) adopt the disk method earlier with (NH
4)
2HPO
4, K
2SO
4, granular urea mixes with zeyssatite, carries out granulation, processes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid Vilaterm alcohol ester (PVAP) of said weight proportion respectively; To pour in the container that fills tween 80 and deionized water then; Under 25 ℃～30 ℃; With 10000r/mim rotating speed cutting emulsification 30mim～50mim, sub-polymer emulsion secures satisfactory grades;
(4) fertiliser granulates of step (2) being processed is poured in the heat drying rotary drum, rolls and is preheated to 70 ℃～80 ℃; Rotary drum is with 50～60 rev/mins of rollings then, and the high molecular weight water soluble polymer coated fertilizer emulsion that simultaneously step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form, and with spraying on the fertiliser granulates in the rotary drum after its atomizing; Simultaneously the fertilizer in the rotary drum is heated to 80 ℃～100 ℃, is heating and curing, stop to spray continued and be heating and curing 5 minutes, end to lactous coated fertilizer completely solidified;
(5) the coating uniformity coefficient of check fertiliser granulates, if inhomogeneous, repeating step is (4) one times again, promptly processes corn slow-release fertilizer of the present invention.
The present invention is that main ingredient is come the composite envelope material with the Mierocrystalline cellulose; Guarantee the degradability of coated fertilizer, improved the controlled release properties and the nitrogen utilization efficiency of fertilizer self simultaneously greatly, also reduced the consumption of coated fertilizer; Reduced cost, thereby the applicable crops scope is further enlarged.Utilize the corn slow-release fertilizer of the inventive method preparation, effectively overcome the nitrogen loss that causes in the fertilising, improved the utilization ratio of nitrogenous fertilizer, also help absorption and the sustainable utilization of crop more, given full play to the effect of chemical fertilizer, obviously improved maize yield simultaneously.Test shows: use corn slow-release fertilizer provided by the invention (400 kilograms～500 kilograms/per hectare of amount of application), per hectare corn yield increasing rate is 8%～13%, and the corresponding income that improves the peasant has better economic and social benefit.
In addition, the present invention has also that preparation technology is simple, and solvent is nontoxic, be fit to fast, the advantage of scale operation, and single-dose application just can be satisfied the needs of crop whole growing to nutrient basically.
Embodiment
Embodiment 1: the preparation of corn slow-release fertilizer
(1) take by weighing following each component (unit: kilogram) by weight ratio:
Wherein: said high molecular polymer is processed by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid Vilaterm alcohol ester (PVAP): tween 80: deionized water is 24: 6: 7.5: 0.15: 45.
(2) adopt the disk method earlier with (NH
4)
2HPO
4, K
2SO
4, (median size is 1.6～2.5mm) to mix with zeyssatite to granular urea, carries out granulation, processes the core of fertiliser granulates, and said fertiliser granulates median size is 0.7～1.5cm;
(3) get Vltra tears, Sumstar 190, the phthalic acid Vilaterm alcohol ester (PVAP) of said weight proportion respectively; To pour in the container that fills tween 80 and deionized water then; Under 28 ℃, with 10000r/mim rotating speed cutting emulsification 35mim, sub-polymer emulsion secures satisfactory grades;
(4) fertiliser granulates of step (2) being processed is poured in the heat drying rotary drum, rolls and is preheated to 75 ℃; Rotary drum is with 60 rev/mins of rollings then, and the high molecular weight water soluble polymer coated fertilizer emulsion that simultaneously step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form, and with spraying on the fertiliser granulates in the rotary drum after its atomizing; Simultaneously the fertilizer in the rotary drum is heated to 90 ℃, is heating and curing, stop to spray continued and be heating and curing 5 minutes, end to lactous coated fertilizer completely solidified;
(5) the coating uniformity coefficient of check fertiliser granulates, if inhomogeneous, repeating step is (4) one times again, promptly processes corn slow-release fertilizer of the present invention.
Embodiment 2: the preparation of corn slow-release fertilizer
(1) take by weighing following each component (unit: kilogram) by weight ratio:
Wherein: said high molecular polymer is processed by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid Vilaterm alcohol ester: tween 80: deionized water is 24: 6: 7.5: 0.15: 45.
(2) adopt the disk method earlier with (NH
4)
2HPO
4, K
2SO
4, (median size is 1.6～2.5mm) to mix with zeyssatite to granular urea, carries out granulation, processes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid Vilaterm alcohol ester (PVAP) of said weight proportion respectively; To pour in the container that fills tween 80 and deionized water then; Under 25 ℃, with 10000r/mim rotating speed cutting emulsification 30mim, sub-polymer emulsion secures satisfactory grades;
(4) fertiliser granulates of step (2) being processed is poured in the heat drying rotary drum, rolls and is preheated to 70 ℃; Rotary drum is with 50 rev/mins of rollings then, and the high molecular weight water soluble polymer coated fertilizer emulsion that simultaneously step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form, and with spraying on the fertiliser granulates in the rotary drum after its atomizing; Simultaneously the fertilizer in the rotary drum is heated to 80 ℃, is heating and curing, stop to spray continued and be heating and curing 5 minutes, end to lactous coated fertilizer completely solidified;
(5) the coating uniformity coefficient of check fertiliser granulates, if inhomogeneous, repeating step is (4) one times again, promptly processes corn slow-release fertilizer of the present invention.
Embodiment 3: the preparation of corn slow-release fertilizer
(1) take by weighing following each component (unit: kilogram) by weight ratio:
Wherein: said high molecular polymer is processed by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid Vilaterm alcohol ester: tween 80: deionized water is 24: 6: 7.5: 0.15: 45.
(2) adopt the disk method earlier with (NH
4)
2HPO
4, K
2SO
4, (median size is 1.6～2.5mm) to mix with zeyssatite to granular urea, carries out granulation, processes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid Vilaterm alcohol ester (PVAP) of said weight proportion respectively; To pour in the container that fills tween 80 and deionized water then; Under 30 ℃, with 10000r/mim rotating speed cutting emulsification 50mim, sub-polymer emulsion secures satisfactory grades;
(4) fertiliser granulates of step (2) being processed is poured in the heat drying rotary drum, rolls and is preheated to 80 ℃; Rotary drum is with 60 rev/mins of rollings then, and the high molecular weight water soluble polymer coated fertilizer emulsion that simultaneously step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form, and with spraying on the fertiliser granulates in the rotary drum after its atomizing; Simultaneously the fertilizer in the rotary drum is heated to 100 ℃, is heating and curing, stop to spray continued and be heating and curing 5 minutes, end to lactous coated fertilizer completely solidified;
(5) the coating uniformity coefficient of check fertiliser granulates, if inhomogeneous, repeating step is (4) one times again, promptly processes corn slow-release fertilizer of the present invention.
Granular urea described in the present invention is available from Shandong Jin Funongnongization ltd or Shandong Zhucheng Liangfeng Chemical Co., Ltd..
Claims (3)
1. corn slow-release fertilizer is to be utilized in fertile particle surface evenly to spray one deck high molecular weight water soluble polymer and process, and it is characterized in that: the component of said corn slow-release fertilizer is (NH in weight ratio
4)
2HPO
4: K
2SO
4: granular urea: zeyssatite: high molecular polymer is 8.5～9.5: 5.5～6.5: 30～32: 8～10: 22～24; Wherein: said high molecular polymer is processed by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid Vilaterm alcohol ester: tween 80: deionized water is 24: 6: 7.5: 0.15: 45.
2. corn slow-release fertilizer as claimed in claim 1 is characterized in that: the component of said corn slow-release fertilizer is (NH in weight ratio
4)
2HPO
4: K
2SO
4: granular urea: zeyssatite: high molecular polymer is 9: 6: 31: 9: 23.
3. corn slow-release fertilizer as claimed in claim 1 is characterized in that: the median size of said granular urea is 1.6～2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102799231A CN102424641A (en) | 2011-09-20 | 2011-09-20 | Corn slow-release fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102799231A CN102424641A (en) | 2011-09-20 | 2011-09-20 | Corn slow-release fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102424641A true CN102424641A (en) | 2012-04-25 |
Family
ID=45958679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102799231A Pending CN102424641A (en) | 2011-09-20 | 2011-09-20 | Corn slow-release fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424641A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103420745A (en) * | 2013-09-11 | 2013-12-04 | 夏闽 | Water-retention fertilizer-maintenance slow release fertilizer and preparation method thereof |
| CN103664410A (en) * | 2013-12-26 | 2014-03-26 | 朱健花 | Special fertilizer for corns |
| CN103755483A (en) * | 2014-02-18 | 2014-04-30 | 孟庆华 | Special controlled-release fertilizer for summer maize and production method thereof |
| CN104072282A (en) * | 2014-06-19 | 2014-10-01 | 陈啟文 | Chemical fertilizer special for corns |
| CN104262062A (en) * | 2014-07-02 | 2015-01-07 | 安徽拜尔福生物科技有限公司 | Coated urea |
Citations (4)
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|---|---|---|---|---|
| CN101177362A (en) * | 2007-11-09 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for corn and preparation method thereof |
| CN101215202A (en) * | 2007-12-27 | 2008-07-09 | 山东大学 | Leaf vegetable release-controlling fertilizer |
| CN101244839A (en) * | 2007-02-14 | 2008-08-20 | 甘肃省农业科学院 | Slow release fertilizer special for corn |
| CN101717305A (en) * | 2009-12-23 | 2010-06-02 | 铁岭老康肥业有限公司 | Corn special controlled-release composite fertilizer |
-
2011
- 2011-09-20 CN CN2011102799231A patent/CN102424641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244839A (en) * | 2007-02-14 | 2008-08-20 | 甘肃省农业科学院 | Slow release fertilizer special for corn |
| CN101177362A (en) * | 2007-11-09 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for corn and preparation method thereof |
| CN101215202A (en) * | 2007-12-27 | 2008-07-09 | 山东大学 | Leaf vegetable release-controlling fertilizer |
| CN101717305A (en) * | 2009-12-23 | 2010-06-02 | 铁岭老康肥业有限公司 | Corn special controlled-release composite fertilizer |
Non-Patent Citations (2)
| Title |
|---|
| 宋永林等: "不同肥料配比对夏玉米生物性状及产量影响的定位研究", 《土壤肥料》, no. 1, 31 January 2001 (2001-01-31) * |
| 李燕婷等: "缓释复混肥料对玉米产量和土壤硝态氮淋失累积效应的影响", 《中国土壤与肥料》, no. 5, 31 December 2008 (2008-12-31), pages 45 - 48 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103420745A (en) * | 2013-09-11 | 2013-12-04 | 夏闽 | Water-retention fertilizer-maintenance slow release fertilizer and preparation method thereof |
| CN103420745B (en) * | 2013-09-11 | 2015-12-23 | 夏闽 | Slow-release fertilizer of a kind of water conservation, fertilizer conservation and preparation method thereof |
| CN103664410A (en) * | 2013-12-26 | 2014-03-26 | 朱健花 | Special fertilizer for corns |
| CN103755483A (en) * | 2014-02-18 | 2014-04-30 | 孟庆华 | Special controlled-release fertilizer for summer maize and production method thereof |
| CN103755483B (en) * | 2014-02-18 | 2016-01-20 | 孟庆华 | A kind of Special controlled-release fertilizer for summer maize and production method thereof |
| CN104072282A (en) * | 2014-06-19 | 2014-10-01 | 陈啟文 | Chemical fertilizer special for corns |
| CN104262062A (en) * | 2014-07-02 | 2015-01-07 | 安徽拜尔福生物科技有限公司 | Coated urea |
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Application publication date: 20120425 |