CN105777358A - Low-cost efficient auxiliary for chemical fertilizer - Google Patents
Low-cost efficient auxiliary for chemical fertilizer Download PDFInfo
- Publication number
- CN105777358A CN105777358A CN201610174481.7A CN201610174481A CN105777358A CN 105777358 A CN105777358 A CN 105777358A CN 201610174481 A CN201610174481 A CN 201610174481A CN 105777358 A CN105777358 A CN 105777358A
- Authority
- CN
- China
- Prior art keywords
- chemical fertilizer
- nitrophenol
- dimethicone
- mannitol
- coating
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a low-cost efficient auxiliary for a chemical fertilizer. The low-cost efficient auxiliary is mainly preprared from the following ingredients in percentage by weight: 8-12% of sodium dodecyl sulfate, 8-12% of aluminum sulfate, 8-15% of mannitol, 8-10% of dimethicone, 10-15% of protein peptide, 10-15% of biological nitrogen-fixing bacteria, 2-5% of a urease inhibitor, 3-6% of a nitrification inhibitor, 10-15% of a drying agent, 8-15% of 2-methoxyl-5-nitrophenol, 10-15% of indolebutyric acid and a coated material. The process and the operation are simple and easy to master; the production cost is low; the production process is free from pollution; the chemical fertilizer utilization ratio can be improved, and the chemical fertilizer dosage is saved; in addition, the low-cost efficient auxiliary is capable of promoting the crop growth and obviously improving the crop yield.
Description
Technical field
The present invention relates to fertilizer additive field, be specially a kind of low cost chemical fertilizer high effective additives.
Background technology
Along with the growth of world population, industrial expansion and city size constantly expand, substantial amounts of arable land is occupied, makes cultivated area reduce year by year.In order to meet people to grain and the demand of agricultural byproducts, it is necessary to increase the yield of grain, and applying chemical fertilizer is the effective means improving grain yield.Traditional fertilizer is such as at present: nitrate fertilizer, ammoniacal nitrogen fertilizer, amide nitrogen fertilizer, cyanamide nitrogen fertilizer etc., all there is certain effect of increasing production, owing to the volatilization of these chemical fertilizer is fast, utilization rate is low, want to obtain volume increase to execute the most much, this is invisible adds burden to peasant, the most a large amount of Long-Time Service also bring many side effects, as to environment, underground water and rivers and lakes all produced pollution in various degree by the infiltration of rainwater.
The use of fertilizer makes agricultural production obtain huge progress, limited soil can be made to offer to the mankind and more gather in the crops.In recent decades, the production of conventional fertilizers and use have reached history summit, and people more and more find, simple dependence strengthens dose can not obtain higher yield.Fertilizer brands numerous on market does not has the biggest difference in essence.Product homogeneity is the fiercest, and the producer of fertilizer and user expect that the development of current science and technology can bring huge change to fertilizer industry.
Summary of the invention
It is an object of the invention to provide a kind of low cost chemical fertilizer high effective additives, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of low cost chemical fertilizer high effective additives, is mainly made up of dodecyl sodium sulfate 8%-12%, aluminum sulfate 8%-12%, mannitol 8%-15%, poly-dimethicone 8%-10%, protein peptides 10%-15%, biological nitrogen fixation bacterium 10%-15%, urease inhibitor 2%-5%, nitrification inhibitor 3%-6%, drier 10%-15%, 2-methoxyl group-5-nitrophenol 8%-15%, indolebutyric acid 10%-15% and coated fertilizer according to weight fraction.
Preferably, preferred composition proportion is dodecyl sodium sulfate 10%, aluminum sulfate 9%, mannitol 12%, poly-dimethicone 8%, protein peptides 10%, biological nitrogen fixation bacterium 10%, urease inhibitor 3%, nitrification inhibitor 5%, drier 10%, 2-methoxyl group-5-nitrophenol 8%, indolebutyric acid 15%.
Preferably, described coated fertilizer is made up of acetylated starch 10%-15%, superpolymer polyethylene alcohol 20%-30%, ethylene-vinyl acetate copolymer 20%-25%, maleic anhydride 20%-50%.
Preferably, its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Compared with prior art, the invention has the beneficial effects as follows: present invention process and grasp simple to operate, easy, production cost is low, production process is pollution-free, can improve chemical fertilizer utilization ratio, save fertilizer amount, in the present invention, interpolation protein peptides, biological nitrogen fixation bacterium can reduce the loss of nitrogen in chemical fertilizer, it is also added with indolebutyric acid, plant growth can be promoted, it is evident that raising crop yield, be also added with drier simultaneously, it is prevented from fertilizer caking, affects effect.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
The present invention provides a kind of technical scheme: a kind of low cost chemical fertilizer high effective additives, is mainly made up of dodecyl sodium sulfate 8%-12%, aluminum sulfate 8%-12%, mannitol 8%-15%, poly-dimethicone 8%-10%, protein peptides 10%-15%, biological nitrogen fixation bacterium 10%-15%, urease inhibitor 2%-5%, nitrification inhibitor 3%-6%, drier 10%-15%, 2-methoxyl group-5-nitrophenol 8%-15%, indolebutyric acid 10%-15% and coated fertilizer according to weight fraction.Coated fertilizer is made up of acetylated starch 10%-15%, superpolymer polyethylene alcohol 20%-30%, ethylene-vinyl acetate copolymer 20%-25%, maleic anhydride 20%-50%.
Embodiment one:
The weight fraction used is: dodecyl sodium sulfate 8%, aluminum sulfate 8%, mannitol 10%, poly-dimethicone 10%, protein peptides 10%, biological nitrogen fixation bacterium 15%, urease inhibitor 3%, nitrification inhibitor 3%, drier 10%, 2-methoxyl group-5-nitrophenol 8%, indolebutyric acid 10%-15%.
In the present embodiment, the weight fraction that coated fertilizer uses is: acetylated starch 10%, superpolymer polyethylene alcohol 20%, ethylene-vinyl acetate copolymer 20%, maleic anhydride 50%.
Its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Embodiment two:
The weight fraction used is: dodecyl sodium sulfate 9%, aluminum sulfate 9%, mannitol 10%, poly-dimethicone 9%, protein peptides 10%, biological nitrogen fixation bacterium 13%, urease inhibitor 5%, nitrification inhibitor 4%, drier 12%, 2-methoxyl group-5-nitrophenol 9%, indolebutyric acid 10%.
In the present embodiment, the weight fraction that coated fertilizer uses is: acetylated starch 15%, superpolymer polyethylene alcohol 30%, ethylene-vinyl acetate copolymer 25%, maleic anhydride 30%.
Its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Embodiment three:
The weight fraction used is: dodecyl sodium sulfate 10%, aluminum sulfate 9%, mannitol 12%, poly-dimethicone 8%, protein peptides 10%, biological nitrogen fixation bacterium 10%, urease inhibitor 3%, nitrification inhibitor 5%, drier 10%, 2-methoxyl group-5-nitrophenol 8%, indolebutyric acid 15%.
In the present embodiment, the weight fraction that coated fertilizer uses is: acetylated starch 12%, superpolymer polyethylene alcohol 25%, ethylene-vinyl acetate copolymer 22%, maleic anhydride 41%.
Its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Embodiment four:
The weight fraction used is: dodecyl sodium sulfate 12%, aluminum sulfate 8%, mannitol 8%, poly-dimethicone 8%, protein peptides 12%, biological nitrogen fixation bacterium 12%, urease inhibitor 2%, nitrification inhibitor 3%, drier 10%, 2-methoxyl group-5-nitrophenol 12%, indolebutyric acid 13%.
In the present embodiment, coated fertilizer employing volume weight fraction is: acetylated starch 13%, superpolymer polyethylene alcohol 26%, ethylene-vinyl acetate copolymer 24%, maleic anhydride 37%.
Its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Present invention process and grasp simple to operate, easy, production cost is low, production process is pollution-free, chemical fertilizer utilization ratio can be improved, save fertilizer amount, add protein peptides in the present invention, biological nitrogen fixation bacterium can reduce the loss of nitrogen in chemical fertilizer, is also added with indolebutyric acid, it is possible to promotes plant growth, raising crop yield clearly, it is also added with drier, it is possible to prevent fertilizer caking simultaneously, affects effect.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can carry out multiple change without departing from the principles and spirit of the present invention, revise, replace and modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a low cost chemical fertilizer high effective additives, it is characterised in that: mainly it is made up of dodecyl sodium sulfate 8%-12%, aluminum sulfate 8%-12%, mannitol 8%-15%, poly-dimethicone 8%-10%, protein peptides 10%-15%, biological nitrogen fixation bacterium 10%-15%, urease inhibitor 2%-5%, nitrification inhibitor 3%-6%, drier 10%-15%, 2-methoxyl group-5-nitrophenol 8%-15%, indolebutyric acid 10%-15% and coated fertilizer according to weight fraction.
A kind of low cost chemical fertilizer high effective additives the most according to claim 1, it is characterised in that: preferably composition proportion is dodecyl sodium sulfate 10%, aluminum sulfate 9%, mannitol 12%, poly-dimethicone 8%, protein peptides 10%, biological nitrogen fixation bacterium 10%, urease inhibitor 3%, nitrification inhibitor 5%, drier 10%, 2-methoxyl group-5-nitrophenol 8%, indolebutyric acid 15%.
A kind of low cost chemical fertilizer high effective additives the most according to claim 1, it is characterised in that: described coated fertilizer is made up of acetylated starch 10%-15%, superpolymer polyethylene alcohol 20%-30%, ethylene-vinyl acetate copolymer 20%-25%, maleic anhydride 20%-50%.
A kind of low cost chemical fertilizer high effective additives the most according to claim 1, it is characterised in that: its preparation method comprises the following steps:
A, dodecyl sodium sulfate, aluminum sulfate, mannitol, poly-dimethicone being stirred at 70 DEG C, mixing time is 30min, and stirring is cooled to normal temperature after terminating, form A preparation；
B, step A prepare A preparation in add protein peptides, biological nitrogen fixation bacterium, urease inhibitor, nitrification inhibitor, drier mixing after put into a pressure vessel, the pressure arranging pressure vessel reaches-0.8 to-0.1 MPa, the temperature simultaneously arranging pressure vessel reaches 60 degrees Celsius, closing presure container, add 2-methoxyl group-5-nitrophenol and indolebutyric acid after normal pressure to be restored, obtain A powder agglomates；
C, the size-reduced machine of A powder agglomates step B obtained obtain A particle after pulverizing；
The coating that D, A particle step C obtained are placed in fluid unit is indoor, coated fertilizer is made coating liquid and is sprayed at A particle surface to form coating at A particle surface, and the granular chemical fertilizer auxiliary agent completed by the coating obtained after coating liquid is finished is dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610174481.7A CN105777358A (en) | 2016-03-25 | 2016-03-25 | Low-cost efficient auxiliary for chemical fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610174481.7A CN105777358A (en) | 2016-03-25 | 2016-03-25 | Low-cost efficient auxiliary for chemical fertilizer |
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| Publication Number | Publication Date |
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| CN105777358A true CN105777358A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610174481.7A Pending CN105777358A (en) | 2016-03-25 | 2016-03-25 | Low-cost efficient auxiliary for chemical fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206213A (en) * | 2018-09-20 | 2019-01-15 | 山东育利化肥有限公司 | A kind of BB fertilizer synergistic auxiliary agent and its preparation method and application |
| CN112174737A (en) * | 2020-10-10 | 2021-01-05 | 河南华智营养科技有限公司 | Micro-fertilizer for foliar spraying of unmanned aerial vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044147A (en) * | 2013-01-15 | 2013-04-17 | 冯建材 | Fertilizer effect enhancing additive and application thereof |
| CN103755446A (en) * | 2013-12-21 | 2014-04-30 | 安徽颍上县汇通助剂有限公司 | Compound chemical fertilizer additive |
| CN103772065A (en) * | 2013-12-20 | 2014-05-07 | 当涂县科辉商贸有限公司 | Special concentrated fertilizer for wheat and preparation method thereof |
| CN103936525A (en) * | 2014-05-14 | 2014-07-23 | 王和绥 | Additive capable of increasing chemical fertilizer absorptivity |
| CN104072285A (en) * | 2014-06-20 | 2014-10-01 | 裴秀琴 | Chemical fertilizer additive |
| CN104744106A (en) * | 2013-12-26 | 2015-07-01 | 汤彬 | Humectant rich in nutrition |
-
2016
- 2016-03-25 CN CN201610174481.7A patent/CN105777358A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044147A (en) * | 2013-01-15 | 2013-04-17 | 冯建材 | Fertilizer effect enhancing additive and application thereof |
| CN103772065A (en) * | 2013-12-20 | 2014-05-07 | 当涂县科辉商贸有限公司 | Special concentrated fertilizer for wheat and preparation method thereof |
| CN103755446A (en) * | 2013-12-21 | 2014-04-30 | 安徽颍上县汇通助剂有限公司 | Compound chemical fertilizer additive |
| CN104744106A (en) * | 2013-12-26 | 2015-07-01 | 汤彬 | Humectant rich in nutrition |
| CN103936525A (en) * | 2014-05-14 | 2014-07-23 | 王和绥 | Additive capable of increasing chemical fertilizer absorptivity |
| CN104072285A (en) * | 2014-06-20 | 2014-10-01 | 裴秀琴 | Chemical fertilizer additive |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206213A (en) * | 2018-09-20 | 2019-01-15 | 山东育利化肥有限公司 | A kind of BB fertilizer synergistic auxiliary agent and its preparation method and application |
| CN112174737A (en) * | 2020-10-10 | 2021-01-05 | 河南华智营养科技有限公司 | Micro-fertilizer for foliar spraying of unmanned aerial vehicle |
| CN112174737B (en) * | 2020-10-10 | 2022-02-25 | 河南华智营养科技有限公司 | Micro-fertilizer for foliar spraying of unmanned aerial vehicle |
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Application publication date: 20160720 |