CN101215202A - Leaf vegetable release-controlling fertilizer - Google Patents

Leaf vegetable release-controlling fertilizer Download PDF

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Publication number
CN101215202A
CN101215202A CNA2007101162431A CN200710116243A CN101215202A CN 101215202 A CN101215202 A CN 101215202A CN A2007101162431 A CNA2007101162431 A CN A2007101162431A CN 200710116243 A CN200710116243 A CN 200710116243A CN 101215202 A CN101215202 A CN 101215202A
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China
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fertilizer
taking
controlled release
high molecular
leaf vegetable
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CNA2007101162431A
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Chinese (zh)
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CN101215202B (en
Inventor
常宏文
张恒
马剑峰
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Shandong University
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Shandong University
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Publication of CN101215202A publication Critical patent/CN101215202A/en
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Abstract

The invention discloses a controlled release fertilizer of leafy vegetable, which is composed of the following components with the following weight proportion, (NH4)2HPO4 taking 14-16, (NH4)2SO4 taking 3-5, NH4Cl taking 13-20, K2SO4 taking 35-40, calcium superphosphate taking 8-15, diatomite taking 7-12 and high molecular polymer taking 20-25. The controlled release fertilizer of leafy vegetable effectively holds the rule of the fertilizer efficiency releasing and the fertilizer requirement of the leafy vegetable and achieves the anastomosis of the releasing peak of the azophoska fertilizer and the peak of leafy vegetable absorbing azophoska, thereby being more beneficial to the absorbability and the utilization of the fertilizer, decreasing fertilizing frequency, saving time and fertilizing amount, having perfect economic benefit and social benefit.

Description

Controlled release fertilizer for leaf vegetable and its
Technical field
The present invention relates to a kind of controlled release fertilizer, relate in particular to a kind of controlled release fertilizer for leaf vegetable and its.
Background technology
Chemical fertilizer generally is extensive use of as conventional fertilizer in proportion of crop planting, and it is easy, remarkably productive to apply fertilizer, but exist a lot of problems in the use of chemical fertilizer, one of distinct issues are that nitrogen utilization efficiency is low, 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 chemical nitrogen fertilizer nitrogen utilization efficiency and the effect of giving full play to chemical fertilizer, be present development resource saving type, environmentally friendly, continue in the high-efficiency agriculture one of distinct issues, nearest agrotechnique development shows: the invention of release and release control fertilizer and production and being applied as on agricultural address this problem has opened up new thinking and valid approach comparatively.
The type of film-coated controlled release fertilizer mainly contains both at home and abroad at present: inorganics coated fertilizer and organic polymer coated fertilizer two big classes.But the problem that the inorganics coated fertilizer exists is the rate of release that 1. is difficult to strict its nutrient of control, because the sulphur clothing is more crisp, putamina can take place in the process that nutrient discharges to break, cause nutrient all release suddenly in the film, claim " crushing release " again, tend to crop root is worked the mischief; 2. a large amount of sulphur shells by behind the microbiological degradation, easily cause soil acidification in soil; 3. sulfur-coated urea also exists the easy oxidation of sulphur coating, fragmentation, is unfavorable for the problem of carrying.The problem that the organic polymer coated fertilizer exists is the 1. biological non-degradable of coated fertilizer, cause " white pollution " easily, 2. production cost height, 3. the crop narrow range of Shi Yonging, 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 on food crop, applying, technology is simple, controlled release properties good, solvent is nontoxic, be suitable for quick production in enormous quantities, and the controlled release coating that can be applied to compound (mixing) fertilizer is simultaneously newly filled a prescription, novel process, will the sound development and the industrialization of China's release and release control fertilizer be of great importance.
Summary of the invention
At the deficiencies in the prior art, the problem that invention will solve provides a kind of controlled release fertilizer for leaf vegetable and its.
Controlled release fertilizer for leaf vegetable and its provided by the invention, form by following components in weight percentage:
(NH 4) 2HPO 4 14～16
(NH 4) 2SO 4 3～5
NH 4Cl 13～20
K 2SO 4 35～40
Calcium superphosphate 8～15
Diatomite 7～12
High molecular polymer 20～25;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester (PVAP): tween 80: deionized water is 20～30: 3～6: 6～10: 0.01～0.2: 40～50.
The component of above-mentioned controlled release fertilizer for leaf vegetable and its preferably is made up of the following weight proportioning:
(NH 4) 2HPO 4 15
(NH 4) 2SO 4 4
NH 4Cl 15
K 2SO 4 38
Calcium superphosphate 12
Diatomite 10
High molecular polymer 23;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester (PVAP): tween 80: deionized water is 25: 5: 8: 0.1: 46.
The production method of controlled release fertilizer for leaf vegetable and its of the present invention, form by following step:
(1) takes by weighing each component by weight ratio;
(2) adopt the disk method earlier with (NH 4) 2HPO 4, (NH 4) 2SO 4, NH 4Cl, K 2SO 4, calcium superphosphate mixes with diatomite, carries out granulation, makes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid polyethylene alcohol ester (PVAP) of described 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 that step (2) is made 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 step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form simultaneously, and with on the fertiliser granulates that sprays to after its atomizing in the rotary drum; Fertilizer in the rotary drum is heated to 80 ℃～100 ℃ simultaneously, is heating and curing, stop to continue to be heating and curing 5 minutes after the spraying, 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 makes controlled release fertilizer for leaf vegetable and its of the present invention.
Controlled release fertilizer for leaf vegetable and its provided by the invention, grasped the regulation of fertilizer requirement of fertilizer efficiency releasing rule and leafy vegetable effectively, realized that the release peak of fertilizer nitrogen phosphorus potassium and the peak of leafy vegetable growth absorbed nitrogen phosphorus potassium match, help the absorption and the utilization of fertilizer more, improve utilization rate of fertilizer, obviously promoted the leafy vegetable growth.Test shows: use controlled release fertilizer for leaf vegetable and its provided by the invention (every mu consumption 50 kilograms), to the plant height of leafy vegetable, leaf long all have promoter action is significantly arranged, also improve the resistance of leafy vegetable simultaneously, reduced the generation of disease, had better economic and social benefit.
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, reduced the consumption of coated fertilizer, reduced cost, thereby the applicable crops scope is further enlarged.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.
Embodiment
Embodiment 1: the preparation of controlled release fertilizer for leaf vegetable and its
(1) take by weighing following each component (unit: kilogram) by weight ratio:
(NH 4) 2HPO 4 15
(NH 4) 2SO 4 4
NH 4Cl 15
K 2SO 4 38
Calcium superphosphate 12
Diatomite 10
High molecular polymer 23;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester (PVAP): tween 80: deionized water is 25: 5: 8: 0.1: 46.
(2) adopt the disk method earlier with (NH 4) 2HPO 4, (NH 4) 2SO 4, NH 4Cl, K 2SO 4, calcium superphosphate mixes with diatomite, carries out granulation, makes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid polyethylene alcohol ester (PVAP) of described 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 that step (2) is made 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 step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form simultaneously, and with on the fertiliser granulates that sprays to after its atomizing in the rotary drum; Simultaneously the fertilizer in the rotary drum is heated to 90 ℃, is heating and curing, stop to continue to be heating and curing 5 minutes after the spraying, 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 makes controlled release fertilizer for leaf vegetable and its of the present invention.
Embodiment 2: the preparation of controlled release fertilizer for leaf vegetable and its
(1) take by weighing following each component (unit: kilogram) by weight ratio:
(NH 4) 2HPO 4 14
(NH 4) 2SO 4 3
NH 4Cl 13
K 2SO 4 35
Calcium superphosphate 8
Diatomite 7
High molecular polymer 20;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester: tween 80: deionized water is 20: 3: 6: 0.01: 40.
(2) adopt the disk method earlier with (NH 4) 2HPO 4, (NH 4) 2SO 4, NH 4Cl, K 2SO 4, calcium superphosphate mixes with diatomite, carries out granulation, makes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid polyethylene alcohol ester (PVAP) of described 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 that step (2) is made 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 step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form simultaneously, and with on the fertiliser granulates that sprays to after its atomizing in the rotary drum; Simultaneously the fertilizer in the rotary drum is heated to 80 ℃, is heating and curing, stop to continue to be heating and curing 5 minutes after the spraying, 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 makes controlled release fertilizer for leaf vegetable and its of the present invention.
Embodiment 3: the preparation of controlled release fertilizer for leaf vegetable and its
(1) take by weighing following each component (unit: kilogram) by weight ratio:
(NH 4) 2HPO 4 16
(NH 4) 2SO 4 5
NH 4Cl 20
K 2SO 4 40
Calcium superphosphate 15
Diatomite 12
High molecular polymer 25;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester: tween 80: deionized water is 30: 6: 10: 0.2: 50.
(2) adopt the disk method earlier with (NH 4) 2HPO 4, (NH 4) 2SO 4, NH 4Cl, K 2SO 4, calcium superphosphate mixes with diatomite, carries out granulation, makes the core of fertiliser granulates;
(3) get Vltra tears, Sumstar 190, the phthalic acid polyethylene alcohol ester (PVAP) of described 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 that step (2) is made 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 step (3) is made is delivered to two-fluid spray nozzle or jet head sets through pump or pressure-bearing form simultaneously, and with on the fertiliser granulates that sprays to after its atomizing in the rotary drum; Simultaneously the fertilizer in the rotary drum is heated to 100 ℃, is heating and curing, stop to continue to be heating and curing 5 minutes after the spraying, 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 makes controlled release fertilizer for leaf vegetable and its of the present invention.

Claims (2)

1. controlled release fertilizer for leaf vegetable and its, form by following components in weight percentage:
(NH 4) 2HPO 4 14～16
(NH 4) 2SO 4 3～5
NH 4Cl 13～20
K 2SO 4 35～40
Calcium superphosphate 8～15
Diatomite 7～12
High molecular polymer 20～25;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester: tween 80: deionized water is 20～30: 3～6: 6～10: 0.01～0.2: 40～50.
2. controlled release fertilizer for leaf vegetable and its as claimed in claim 1 is characterized in that, described component is made up of the following weight proportioning:
(NH 4) 2HPO 4 15
(NH 4) 2SO 4 4
NH 4Cl 15
K 2SO 4 38
Calcium superphosphate 12
Diatomite 10
High molecular polymer 23;
Wherein: described high molecular polymer is made by the component of following weight proportion: Vltra tears: Sumstar 190: phthalic acid polyethylene alcohol ester: tween 80: deionized water is 25: 5: 8: 0.1: 46.
CN2007101162431A 2007-12-27 2007-12-27 Leaf vegetable release-controlling fertilizer Expired - Fee Related CN101215202B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007101162431A CN101215202B (en) 2007-12-27 2007-12-27 Leaf vegetable release-controlling fertilizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101162431A CN101215202B (en) 2007-12-27 2007-12-27 Leaf vegetable release-controlling fertilizer

Publications (2)

Publication Number Publication Date
CN101215202A true CN101215202A (en) 2008-07-09
CN101215202B CN101215202B (en) 2010-06-02

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424641A (en) * 2011-09-20 2012-04-25 山东大学 Corn slow-release fertilizer
CN103739387A (en) * 2013-12-30 2014-04-23 北京仁创三会农业科技有限公司 Envelope controlled-release fertilizer taking silica sands as core and preparation method thereof
CN104030799A (en) * 2014-05-20 2014-09-10 安徽三星化工有限责任公司 Water-retaining drought-resisting long-acting slow-release compound fertilizer
CN104058886A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 Film-coated compound fertilizer for accelerating growth of plant root system and preparation method thereof
CN104058826A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 High-efficiency long-acting biological organic composite coated fertilizer and preparation method thereof
CN104058887A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 Ore powder-containing biological organic base fertilizer and preparation method thereof
CN104250001A (en) * 2014-09-19 2014-12-31 贵阳中化开磷化肥有限公司 Production method of special tobacco fertilizer serving as byproduct of preparation of monopotassium phosphate
CN104262062A (en) * 2014-07-02 2015-01-07 安徽拜尔福生物科技有限公司 Coated urea
CN104276551A (en) * 2014-09-19 2015-01-14 贵阳中化开磷化肥有限公司 Production method for preparing diammonium hydrogen phosphate and byproduct special fertilizer for oats
CN106380292A (en) * 2016-08-29 2017-02-08 贵阳开磷化肥有限公司 Controlled-release fertilizer for vegetables and preparation method of controlled release fertilizer

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CN1666971A (en) * 2004-03-10 2005-09-14 中国科学院沈阳应用生态研究所 Release control fertilizer and method for producing same
CN1256307C (en) * 2004-08-09 2006-05-17 沈阳农业大学 Film coated control releasing regetable special fertilizer and its producing method
CN100465136C (en) * 2006-12-31 2009-03-04 沈阳农业大学 Film coated control release composite fertilizer special for regetables and its making method
CN100457694C (en) * 2007-02-12 2009-02-04 山东省农业科学院土壤肥料研究所 Biological biodegradable self-control slow-releasing fertilizer and preparation method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424641A (en) * 2011-09-20 2012-04-25 山东大学 Corn slow-release fertilizer
CN103739387A (en) * 2013-12-30 2014-04-23 北京仁创三会农业科技有限公司 Envelope controlled-release fertilizer taking silica sands as core and preparation method thereof
CN104030799A (en) * 2014-05-20 2014-09-10 安徽三星化工有限责任公司 Water-retaining drought-resisting long-acting slow-release compound fertilizer
CN104058886A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 Film-coated compound fertilizer for accelerating growth of plant root system and preparation method thereof
CN104058826A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 High-efficiency long-acting biological organic composite coated fertilizer and preparation method thereof
CN104058887A (en) * 2014-05-28 2014-09-24 马鞍山市心洲葡萄专业合作社 Ore powder-containing biological organic base fertilizer and preparation method thereof
CN104262062A (en) * 2014-07-02 2015-01-07 安徽拜尔福生物科技有限公司 Coated urea
CN104250001A (en) * 2014-09-19 2014-12-31 贵阳中化开磷化肥有限公司 Production method of special tobacco fertilizer serving as byproduct of preparation of monopotassium phosphate
CN104276551A (en) * 2014-09-19 2015-01-14 贵阳中化开磷化肥有限公司 Production method for preparing diammonium hydrogen phosphate and byproduct special fertilizer for oats
CN104276551B (en) * 2014-09-19 2016-03-09 贵州开磷集团股份有限公司 A kind of production method preparing Secondary ammonium phosphate by-product oat special fertilizer
CN104250001B (en) * 2014-09-19 2016-03-16 贵州开磷集团股份有限公司 A kind of production method preparing potassium primary phosphate by-product fertilizer special for tobacco
CN106380292A (en) * 2016-08-29 2017-02-08 贵阳开磷化肥有限公司 Controlled-release fertilizer for vegetables and preparation method of controlled release fertilizer

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