CN105439697A - Water-retention and synergism compound fertilizer and preparation method thereof - Google Patents
Water-retention and synergism compound fertilizer and preparation method thereof Download PDFInfo
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- CN105439697A CN105439697A CN201510839624.7A CN201510839624A CN105439697A CN 105439697 A CN105439697 A CN 105439697A CN 201510839624 A CN201510839624 A CN 201510839624A CN 105439697 A CN105439697 A CN 105439697A
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Abstract
The invention relates to a water-retention and synergism compound fertilizer. The compound fertilizer comprises raw materials in parts by weight as follows: 100-380 parts of a nitrogenous fertilizer, 80-420 parts of a phosphatic fertilizer, 100-450 parts of a potash fertilizer, 20-50 parts of bentonite, 20-35 parts of bone meal, 3-8 parts of iron ore powder, 10-30 parts of light roasting powder, 5-15 parts of a biological synergist, 5-10 parts of a microelement conditioner and 10-20 parts of polyacrylamide. The biological synergist is prepared by mixing gamma-polyglutamic acid with humic acid in the weight ratio being 1: (5-10). The compound fertilizer effectively combines double water retention functions of polyacrylamide and gamma-polyglutamic acid, the soil moisture utilization rate can be remarkably increased, the fertilizer utilization rate is increased, and the agriculture input cost is saved. According to the preparation method, universal processes such as mixing, stirring, granulation and the like are adopted, the operation is simple, and large-scale production is convenient to realize.
Description
Technical field
The invention belongs to multi-Functional Fertilizers technical field, be specifically related to a kind of water conservation Synergistic composite fertilizer and preparation method thereof.
Background technology
Water conservancy is the lifeblood of agricultural, and the continuous drought of the northern area of China and the serious over-extraction of underground water, force people how will to improve the utilization ratio of water resources as the focus paid close attention in recent years.Research shows, agricultural irrigation water about 50% consumption, in field, is strengthened the research and development to field water-saving technology, significantly can be reduced irrigation volume, improves research advances and crop yield.
Summary of the invention
The present invention solves the technical problem that in modern agriculture, water loss is serious, and provide a kind of water conservation Synergistic composite fertilizer and preparation method thereof, this fertilizer has good water-retaining effect, synergism, can significantly improve the quantity and quality of farm crop.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of water conservation Synergistic composite fertilizer, this composite fertilizer comprises following weight parts raw material: nitrogenous fertilizer 100-380 part; Phosphate fertilizer 80-420 part; Potash fertilizer 100-450 part; Wilkinite 20-50 part; Bone meal 20-35 part; Powdered iron ore 3-8 part; Light burnt powder 10-30 part; Biological potentiating agent 5-15 part; Trace element amendment 5-10 part; Polyacrylamide 10-20 part; Wherein, described biological potentiating agent is mixed by weight 1:5-10 by gamma-polyglutamic acid-and Sodium salts humic acids/potassium humate.
The molecular weight of described gamma-polyglutamic acid-is preferably 300-3000kDa; The molecular weight of polyacrylamide is advisable between 1,000 ten thousand-1,800 ten thousand; Described bone meal obtains by raiseeing the rough one-tenth powder of bone.Powdered iron ore be by iron ore (ore containing ferro element or iron cpd) through ore dressing, fragmentation, sorting, the breeze of processing treatment such as to grind.Magnesite claims " light-burned " at 750-1100 temperature lower calcination, and its product claims light-burning magnesium powder, referred to as light burnt powder.Sodium salts humic acids, potassium humate are powdery, and effective constituent is about 60-70%.
Concrete, described nitrogenous fertilizer is selected from urea, primary ammonium phosphate, Secondary ammonium phosphate, ammonium nitrate or ammonium sulfate.
Described phosphate fertilizer is selected from ammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate or potassiumphosphate.
Described potash fertilizer is selected from Repone K, potassium sulfate, saltpetre or potassium primary phosphate.
Described micro-amendment is mixed by weight ratios such as zinc sulfate, manganous sulfate, copper sulfate, eight Sodium Tetraboratees and ammonium molybdates.
Each constitutive material of described composite fertilizer all in powdery, and all crosses 30-80 mesh sieve.
The preparation method of above-mentioned water conservation Synergistic composite fertilizer, it comprises the steps:
1) get other raw material except polyacrylamide in proportion, then mix in mixing tank, with pH value be the water of 5-7 as binding agent, in granulating disc, carry out granulation;
2) after preliminary screening (particle diameter of the salable product that sieve is at 1-3mm), at outer layer covers powdered polypropylene acid amides, through screening, be drying to obtain.After polyacrylamide parcel, the particle diameter of salable product is at 2-4mm.
Water conservation Synergistic composite fertilizer of the present invention, it is based on N,P,K fertilizers, composite wilkinite, bone meal, powdered iron ore, light burnt powder, biological potentiating agent, micro-amendment according to a certain percentage, after preliminary granulation screening, forms at outer layer covers polyacrylamide.Polyacrylamide (PAM) is a kind of water-soluble linear high molecular polymer, and monomer whose is acrylamide, is the water-soluble polymers be most widely used at present.Polyacrylamide is as soil conditioner, the intergranular cohesive force of upper soll layer can be increased, maintain good Soil structure, prevent soil crust, increase water infiltration, prevent erosion, suppress soil water evaporation, improve rainwater utilization, there is the effectiveness such as water conservation, soil conservation, fertilizer conservation, insulation, volume increase; Polyacrylamide can also improve the utilization ratio of fertilizer, improves the ecological environment.Gamma-polyglutamic acid-(γ-PGA) is the water-soluble polyamino acid that occurring in nature fermentable produces, and its structure is that glutamic acid units forms the high molecular polymer of peptide bond by alpha-amino group and γ-carboxyl, and molecular weight distribution is between 100kDa to 10000kDa.In agriculture production, gamma-polyglutamic acid-have superpower wetting ability and water retention capacity, can active balance soil acid-base value, precipitation toxic heavy metal, strengthen plant disease-resistant and degeneration-resistant border ability, also can promote that gourd, fruit and vegetable increases production about 10-20%, degraded product is non-harmful L-glutamic acid, is a kind of excellent environment-friendly type macromolecule material.Humic acids is a kind of natural polymer organic compound, containing various active genes such as carboxyl, phenolic hydroxyl group, methoxyl groups in molecule, has stronger physiologically active.It can carry out the reactions such as chemical combination, displacement, complexing, chelating with heavy metal ion, makes its modification, generates the various novel substance with multiple beneficial characteristic.Being a kind of new-type fertilizer containing humic acid substance containing humic acid fertilizer, is also a kind of multifunctional fertilizers.
Compared with prior art, the advantage that has of the present invention and effect as follows:
1) composite fertilizer of the present invention effectively combines the dual water conservation effect of gamma-polyglutamic acid-and polyacrylamide, the soil water utilization rate at Term Fertilization initial stage can not only be improved, water-retaining effect can also be realized within fertilizer whole deenergized period, improve the object of utilization rate of fertilizer, thus save countryside tax system cost;
2) advantages of nontoxic raw materials that adopts of composite fertilizer of the present invention is nuisanceless, has biodegradability, while supply crop alimentary comprehensively, can also effective complexation heavy metal ion, and obviously improve soil quality.
3) preparation method of the present invention adopts the techniques such as general mixing, stirring, granulation, simple to operate, is convenient to accomplish scale production.Prepare gained composite fertilizer and be applicable to the various crop such as corn, wheat, peanut, potato, Ipomoea batatas, soybean.
Embodiment
Do to introduce in detail further to technical scheme of the present invention below in conjunction with embodiment, but protection scope of the present invention is not limited thereto.
embodiment 1
A kind of water conservation Synergistic composite fertilizer, this composite fertilizer comprises following weight parts raw material: 210 parts, urea, Secondary ammonium phosphate 350 parts, potassium sulfate 350 parts, wilkinite 30 parts, bone meal 23 parts, powdered iron ore 3 parts, light burnt powder 18 parts, biological potentiating agent 6 parts (gamma-polyglutamic acid-: Sodium salts humic acids is 1:8), micro-amendment 6 parts, polyacrylamide 10 parts; Trace element amendment is mixed by weight ratios such as zinc sulfate, manganous sulfate, copper sulfate, eight Sodium Tetraboratees and ammonium molybdates.Each constitutive material all in powdery, and all crosses 60 mesh sieves.
The preparation method of above-mentioned water conservation Synergistic composite fertilizer, it comprises the steps:
1) get other raw material except polyacrylamide in proportion, then mix in mixing tank, with pH value be the water of 6.0 as binding agent, in granulating disc, carry out granulation;
2) after preliminary screening (particle diameter of the salable product that sieve is at below 2mm), at outer layer covers powdered polypropylene acid amides, through screening (after polyacrylamide parcel, the particle diameter of salable product is at below 3mm) after, send in rotating drum dryer and carry out drying, make its moisture content be less than 1%, and cool through travelling belt and be sent to packaging place and carry out weighing, pack and get final product.
embodiment 2
A kind of water conservation Synergistic composite fertilizer, this composite fertilizer comprises following weight parts raw material: 192 parts, ammonium nitrate, calcium superphosphate 360 parts, potassium primary phosphate 288 parts, wilkinite 38 parts, bone meal 25 parts, powdered iron ore 5 parts, light burnt powder 21 parts, biological potentiating agent 8 parts (gamma-polyglutamic acid-: Sodium salts humic acids is 1:10), micro-amendment 8 parts, polyacrylamide 20 parts; Trace element amendment is mixed by weight ratios such as zinc sulfate, manganous sulfate, copper sulfate, eight Sodium Tetraboratees and ammonium molybdates.Each constitutive material all in powdery, and all crosses 40 mesh sieves.
The preparation method of above-mentioned water conservation Synergistic composite fertilizer, it comprises the steps:
1) get other raw material except polyacrylamide in proportion, then mix in mixing tank, with pH value be the water of 6.5 as binding agent, in granulating disc, carry out granulation;
2) after preliminary screening (particle diameter of the salable product that sieve is at below 1mm), at outer layer covers powdered polypropylene acid amides, through screening (after polyacrylamide parcel, the particle diameter of salable product is at below 2mm) after, send in rotating drum dryer and carry out drying, make its moisture content be less than 0.8%, and cool through travelling belt and be sent to packaging place and carry out weighing, pack and get final product.
embodiment 3
A kind of water conservation Synergistic composite fertilizer, this composite fertilizer comprises following weight parts raw material: 221 parts, urea, 390 parts, fused(calcium magnesium)phosphate, 156 parts, saltpetre, wilkinite 35 parts, bone meal 28 parts, powdered iron ore 4 parts, light burnt powder 16 parts, biological potentiating agent 10 parts (gamma-polyglutamic acid-: potassium humate is 1:5), micro-amendment 10 parts, polyacrylamide 15 parts; Trace element amendment is mixed by weight ratios such as zinc sulfate, manganous sulfate, copper sulfate, eight Sodium Tetraboratees and ammonium molybdates.Each constitutive material all in powdery, and all crosses 80 mesh sieves.
The preparation method of above-mentioned water conservation Synergistic composite fertilizer, it comprises the steps:
1) get other raw material except polyacrylamide in proportion, then mix in mixing tank, with pH value be the water of 7.0 as binding agent, in granulating disc, carry out granulation;
2) after preliminary screening (particle diameter of the salable product that sieve is at below 2mm), at outer layer covers powdered polypropylene acid amides, through screening (after polyacrylamide parcel, the particle diameter of salable product is at below 3mm) after, send in rotating drum dryer and carry out drying, make its moisture content be less than 0.9%, and cool through travelling belt and be sent to packaging place and carry out weighing, pack and get final product.
effect is illustrated
For verifying that composite fertilizer of the present invention has water conservation, the effect of increasing production and improying productivity, test at potato growing area, get 2 pieces, the experimental plot of 1 mu, respectively as check plot and test site, Common compound fertilizer is used in check plot, and the water conservation Synergistic composite fertilizer of embodiment 1 gained is used in test site, amount of application is 25 kilograms, and as base manure applied once, the later stage no longer topdresses, daily administration situation in field is all consistent.Test-results shows: check plot potato yield is 2200 kilograms, and test site potato yield is 2452 jin, and per mu yield improves 11.45%, income raising 10.96% per mu.In addition, contrast finds: the soil of test site is soft compared with check plot, moistening, water ratio higher 6.73%.
In addition, for verifying that composite fertilizer of the present invention has synergism, test in Soybean-planting, get 2 pieces, the experimental plot of 2 mu, respectively as check plot and test site, Common compound fertilizer is used in check plot, the water conservation Synergistic composite fertilizer of embodiment 2 gained is used in test site, and amount of application is 40 kilograms, and as base manure applied once, later stage no longer topdresses, and daily administration situation in field is all consistent.Test-results shows: check plot soybean yields is 512 kilograms, and test site soybean yields is 556 kilograms, and per mu yield improves 8.59%, and income raising 7.96% per mu, the effect of increasing income is remarkable.In addition, contrast finds: the soil of test site is soft compared with check plot, moistening, water ratio higher 6.73%.
Applicant has also carried out fertilizer efficiency proof test in corn-growing regions.Get experimental field 2 pieces of 1 mu, respectively as check plot and test site.Common compound fertilizer is used in check plot, and the Synergistic composite fertilizer of embodiment 3 gained is used in test site, and amount of application is 30 kilograms, and as base manure applied once, the later stage no longer topdresses.The condition such as corn variety, farming method is completely the same.Comparative result finds: the Synergistic composite fertilizer of embodiment 3 gained has obvious production-increasing function, output increased 7.13% per mu, and income per mu can increase by 6.88%, and water conservation effect resistant to lodging is better.
Certainly, the formula of water conservation Synergistic composite fertilizer involved in the present invention and purposes are not limited to above embodiment and crop application examples, adjust various proportioning raw materials and can obtain dissimilar and meet the Synergistic composite fertilizer that different crops grows demand.
Claims (7)
1. a water conservation Synergistic composite fertilizer, is characterized in that, this composite fertilizer comprises following weight parts raw material: nitrogenous fertilizer 100-380 part; Phosphate fertilizer 80-420 part; Potash fertilizer 100-450 part; Wilkinite 20-50 part; Bone meal 20-35 part; Powdered iron ore 3-8 part; Light burnt powder 10-30 part; Biological potentiating agent 5-15 part; Trace element amendment 5-10 part; Polyacrylamide 10-20 part; Wherein, described biological potentiating agent is mixed by weight 1:5-10 by gamma-polyglutamic acid-and Sodium salts humic acids/potassium humate.
2. water conservation Synergistic composite fertilizer as claimed in claim 1, it is characterized in that, described nitrogenous fertilizer is selected from urea, primary ammonium phosphate, Secondary ammonium phosphate, ammonium nitrate or ammonium sulfate.
3. water conservation Synergistic composite fertilizer as claimed in claim 1, it is characterized in that, described phosphate fertilizer is selected from ammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate or potassiumphosphate.
4. water conservation Synergistic composite fertilizer as claimed in claim 1, it is characterized in that, described potash fertilizer is selected from Repone K, potassium sulfate, saltpetre or potassium primary phosphate.
5. water conservation Synergistic composite fertilizer as claimed in claim 1, it is characterized in that, described micro-amendment is mixed by weight ratios such as zinc sulfate, manganous sulfate, copper sulfate, eight Sodium Tetraboratees and ammonium molybdates.
6. water conservation Synergistic composite fertilizer as claimed in claim 1, is characterized in that, each constitutive material of described composite fertilizer all in powdery, and all crosses 30-80 mesh sieve.
7. the preparation method of water conservation Synergistic composite fertilizer described in claim 1, is characterized in that, comprise the steps:
1) get other raw material except polyacrylamide in proportion, then mix in mixing tank, with pH value be the water of 5-7 as binding agent, in granulating disc, carry out granulation;
2) after preliminary screening, at outer layer covers powdered polypropylene acid amides, through screening, be drying to obtain.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008022A (en) * | 2016-06-27 | 2016-10-12 | 陈启芬 | Synergistic compound fertilizer |
| CN106083491A (en) * | 2016-06-14 | 2016-11-09 | 周保东 | A kind of preparation method of holding water and fixing nitrogen slow release water-soluble fertilizer |
| CN106116862A (en) * | 2016-06-27 | 2016-11-16 | 陈启芬 | A kind of compound fertilizer of water conservation potentiation |
| CN107011047A (en) * | 2017-04-18 | 2017-08-04 | 代鑫 | A kind of organic water soluble carbon fertilizer and preparation method thereof |
| CN107236095A (en) * | 2017-07-24 | 2017-10-10 | 河北工程大学 | Bone meal and the rich phosphorus potassium water-preserving nutritive fertilizer of humic acid potassium base intercrossed network type and preparation method thereof |
| CN107586209A (en) * | 2017-10-30 | 2018-01-16 | 成都云图控股股份有限公司 | A kind of instant chelating solid Water soluble fertilizer and preparation method thereof |
| CN107673821A (en) * | 2017-09-22 | 2018-02-09 | 河南心连心化肥有限公司 | A kind of full nutrition fertilizer that corn can be promoted to spin in advance and preparation method thereof |
| CN107698345A (en) * | 2017-11-13 | 2018-02-16 | 泰州职业技术学院 | High hydroscopic resin coated slow release fertilizer containing polyglutamic acid and preparation method thereof |
| CN108083897A (en) * | 2017-12-14 | 2018-05-29 | 山东省农业科学院农业资源与环境研究所 | A kind of control nitrogen promotees phosphorous synergia compound fertilizer material and preparation method and application |
| CN108129244A (en) * | 2018-03-19 | 2018-06-08 | 田东昊润新材料科技有限公司 | A kind of mango compound fertilizer special |
| CN111302868A (en) * | 2020-02-18 | 2020-06-19 | 广州市博仕奥生化技术研究有限公司 | Compound fertilizer containing gamma-polyglutamic acid and preparation method thereof |
| CN112110767A (en) * | 2020-09-22 | 2020-12-22 | 史丹利农业集团股份有限公司 | Organic-inorganic compound fertilizer containing active factors and preparation and application thereof |
| CN112209765A (en) * | 2020-08-17 | 2021-01-12 | 中化化肥有限公司 | Synergist, synergistic potassium fertilizer and preparation method thereof |
| CN114045174A (en) * | 2021-12-13 | 2022-02-15 | 江西润垚生物科技有限公司 | Liquid microbial improver for soil remediation and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159571A (en) * | 2013-04-16 | 2013-06-19 | 领先生物农业股份有限公司 | Soil water and fertility retaining agent and preparation method thereof |
| CN103408377A (en) * | 2013-08-26 | 2013-11-27 | 淮安市丰勤生物有机肥有限公司 | Multifunctional compound fertilizer |
| CN103787781A (en) * | 2014-02-27 | 2014-05-14 | 王东 | High-efficiency anti-seepage fertilizer and preparation method thereof |
| CN104671926A (en) * | 2013-11-26 | 2015-06-03 | 沈攀攀 | A nitrogen fertilizer synergist |
-
2015
- 2015-11-27 CN CN201510839624.7A patent/CN105439697A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159571A (en) * | 2013-04-16 | 2013-06-19 | 领先生物农业股份有限公司 | Soil water and fertility retaining agent and preparation method thereof |
| CN103408377A (en) * | 2013-08-26 | 2013-11-27 | 淮安市丰勤生物有机肥有限公司 | Multifunctional compound fertilizer |
| CN104671926A (en) * | 2013-11-26 | 2015-06-03 | 沈攀攀 | A nitrogen fertilizer synergist |
| CN103787781A (en) * | 2014-02-27 | 2014-05-14 | 王东 | High-efficiency anti-seepage fertilizer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 魏君等: "《聚丙烯酰胺及其衍生物的生产技术与应用》", 31 October 2011, 石油工业出版社 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106083491A (en) * | 2016-06-14 | 2016-11-09 | 周保东 | A kind of preparation method of holding water and fixing nitrogen slow release water-soluble fertilizer |
| CN106116862A (en) * | 2016-06-27 | 2016-11-16 | 陈启芬 | A kind of compound fertilizer of water conservation potentiation |
| CN106008022A (en) * | 2016-06-27 | 2016-10-12 | 陈启芬 | Synergistic compound fertilizer |
| CN107011047A (en) * | 2017-04-18 | 2017-08-04 | 代鑫 | A kind of organic water soluble carbon fertilizer and preparation method thereof |
| CN107236095A (en) * | 2017-07-24 | 2017-10-10 | 河北工程大学 | Bone meal and the rich phosphorus potassium water-preserving nutritive fertilizer of humic acid potassium base intercrossed network type and preparation method thereof |
| CN107673821B (en) * | 2017-09-22 | 2021-04-23 | 河南心连心化学工业集团股份有限公司 | Full-nutrient fertilizer capable of promoting advanced silking of corn and preparation method thereof |
| CN107673821A (en) * | 2017-09-22 | 2018-02-09 | 河南心连心化肥有限公司 | A kind of full nutrition fertilizer that corn can be promoted to spin in advance and preparation method thereof |
| CN107586209A (en) * | 2017-10-30 | 2018-01-16 | 成都云图控股股份有限公司 | A kind of instant chelating solid Water soluble fertilizer and preparation method thereof |
| CN107698345A (en) * | 2017-11-13 | 2018-02-16 | 泰州职业技术学院 | High hydroscopic resin coated slow release fertilizer containing polyglutamic acid and preparation method thereof |
| CN108083897A (en) * | 2017-12-14 | 2018-05-29 | 山东省农业科学院农业资源与环境研究所 | A kind of control nitrogen promotees phosphorous synergia compound fertilizer material and preparation method and application |
| CN108129244A (en) * | 2018-03-19 | 2018-06-08 | 田东昊润新材料科技有限公司 | A kind of mango compound fertilizer special |
| CN111302868A (en) * | 2020-02-18 | 2020-06-19 | 广州市博仕奥生化技术研究有限公司 | Compound fertilizer containing gamma-polyglutamic acid and preparation method thereof |
| CN112209765A (en) * | 2020-08-17 | 2021-01-12 | 中化化肥有限公司 | Synergist, synergistic potassium fertilizer and preparation method thereof |
| CN112209765B (en) * | 2020-08-17 | 2022-06-07 | 中化化肥有限公司 | Synergist, synergistic potassium fertilizer and preparation method thereof |
| CN112110767A (en) * | 2020-09-22 | 2020-12-22 | 史丹利农业集团股份有限公司 | Organic-inorganic compound fertilizer containing active factors and preparation and application thereof |
| CN114045174A (en) * | 2021-12-13 | 2022-02-15 | 江西润垚生物科技有限公司 | Liquid microbial improver for soil remediation and preparation method thereof |
| CN114045174B (en) * | 2021-12-13 | 2022-07-26 | 江西润垚生物科技有限公司 | Liquid microbial improver for soil remediation and preparation method thereof |
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