CN112374939A - Compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer and preparation method thereof - Google Patents
Compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer and preparation method thereof Download PDFInfo
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- CN112374939A CN112374939A CN202011294268.2A CN202011294268A CN112374939A CN 112374939 A CN112374939 A CN 112374939A CN 202011294268 A CN202011294268 A CN 202011294268A CN 112374939 A CN112374939 A CN 112374939A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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- 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
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- 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
- C05G3/80—Soil conditioners
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- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- 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
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
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- 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 compound microorganism coated long-acting saline-alkali soil improving fertilizer and a preparation method thereof, wherein the compound microorganism coated long-acting saline-alkali soil improving fertilizer comprises 15-25 parts of saline-alkali soil improving materials, 5-10 parts of coating materials, 10-25 parts of compound microorganism agents, 50-70 parts of compound fertilizers and 20-40 parts of soil. The invention has the beneficial effects that: the fertilizer formula contains soil, and the soil produced by mixing the sludge and the turf ensures that the microbial agent can keep the highest activity in the saline-alkali soil and can be rapidly propagated and produced, so that the treatment effect is better; the rooting powder added into the soil enhances the rooting capacity of the plants planted in the saline-alkali soil, so that the plants can better absorb the improved fertilizer through the root system, and the growth survival rate of the plants is improved; carry out the multilayer parcel in to fertilizer manufacturing process, through long-time degrading the fertilizer, the live time is longer in the saline and alkaline land for the fertilizer can last effectually to be administered the saline and alkaline land.
Description
Technical Field
The invention relates to a compound microorganism coated long-acting saline-alkali soil improving fertilizer, in particular to a compound microorganism coated long-acting saline-alkali soil improving fertilizer and a preparation method thereof, belonging to the technical field of saline-alkali soil improvement.
Background
The arable land is a land which can be used for planting crops in geography, approximately 3100 thousands of arable lands in 1 hundred million 4800 kilometers of land on the earth are arable lands, but the arable land area is lost at the speed of 10 kilometers per year, the main reason of the arable land loss is forest cutting which mainly occurs in rainforests over-developed in tropical regions, and the forest cutting sometimes even leads to desertification, for example, severe desertification is caused by excessive free-run cultivation on a central plateau of motor gaska, and in order to increase the arable land area, the saline-alkali land can be treated to meet the requirement of the arable land, and at present, the improvement and utilization methods and the technology for the saline-alkali land in China have the following physical improvement: leveling land, deeply ploughing and drying ridges, loosening soil in time, raising the terrain, and changing soil in micro-areas; water conservancy improvement; filling, storing light salt, filling water to wash salt, and draining salt underground; chemical improvement: gypsum, phosphogypsum, calcium superphosphate, humic acid, peat, vinegar residue and the like; biological improvement: the method is characterized in that rice is planted, salt-tolerant plants such as sesbania sessiliflora are planted, microbial fertilizers are used for treatment, the purpose of improvement can be achieved to a certain extent for saline-alkali soil in the prior art, but manpower and material resources consumed by physical improvement and water conservancy improvement are huge, the improvement effect is poor, and the improvement for treating the saline-alkali soil at present mainly takes chemical improvement and biological improvement as main parts.
When the saline-alkali soil is treated, the saline-alkali improvement substance has poor effect due to overhigh saline-alkali degree, so that the compound microbial agent loses activity, the saline-alkali soil cannot be effectively biologically decomposed, and the treatment effect on the saline-alkali soil is reduced; when the plants are fertilized, the plants can absorb various needed medium and trace elements after rooting on the saline-alkali soil, but the root systems of the plants can not root again on the soil after the saline-alkali soil is treated; in chemical improvement and biological improvement, can carry out the salinity and alkalinity earlier to soil to saline and alkaline land usually and restore, adjust the growth environment that suitable pH value comes to be fit for the plant, administer saline and alkaline land through the fertilization, but the time of consuming, material resources and manpower are great, and the weather after the fertilization can't be prejudged, can't effectually administer the improvement to the saline and alkaline land after the fertilization appears easily.
Disclosure of Invention
The invention aims to solve the problems and provide a compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer and a preparation method thereof.
The compound microorganism coated long-acting saline-alkali soil improving fertilizer comprises, by weight, 15-25 parts of a saline-alkali soil improving material, 5-10 parts of a coating material, 10-25 parts of a compound microorganism microbial agent, 50-70 parts of a compound fertilizer and 20-40 parts of soil.
Preferably, the saline-alkali soil improvement material comprises an acidic substance and gypsum, wherein the ratio of the acidic substance to the gypsum is 1: 1 by weight ratio was stirred and mixed.
Preferably, the acidic substance is one of ammonium sulfate, ammonium nitrate, calcium superphosphate, potassium dihydrogen phosphate and potassium sulfate.
Preferably, the coating material comprises a coating substance, an adsorbent and a binder, and the coating substance, the adsorbent and the binder are mixed according to a ratio of 1: 0.35: 0.35 weight ratio and stirring.
Preferably, the coating material is one of polysaccharide natural materials such as starch, cellulose and chitosan.
Preferably, the compound microbial agent comprises azotobacter, phosphate solubilizing bacteria, potassium solubilizing bacteria, alkali-resistant microbial bacteria, 26 amino acids, protease and peptide, wherein the proportion of azotobacter, phosphate solubilizing bacteria, potassium solubilizing bacteria, alkali-resistant microbial bacteria, 26 amino acids, protease and peptide is 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1 weight ratio and stirring.
Preferably, the gram of the microorganism bacteria in the compound microorganism bacteria agent is not less than 10 hundred million/g.
Preferably, the compound fertilizer is a compound fertilizer of medium and trace elements necessary for plant growth.
Preferably, the soil comprises silt, grass peat and rooting powder, and the silt, grass peat and rooting powder are mixed according to a ratio of 1: 0.35: 0.35 weight ratio, mixing, stirring and drying.
A preparation method of a compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer comprises the following steps:
firstly, raw materials are measured and preliminarily processed, the required raw materials are purchased to a production plant, and after the raw materials are measured by a professional measuring device, the compound fertilizer is granulated and dried according to a common process to obtain fertilizer particles.
And secondly, preliminarily coating, namely putting the manufactured fertilizer granules into a coating machine, and coating substances, an adsorbent and a binder according to the measured raw materials by a ratio of 1: 0.35: mixing and stirring at a weight ratio of 0.35, atomizing, and then coating a layer of film on the fertilizer particles.
Thirdly, secondary processing, namely mixing azotobacter, phosphate-solubilizing bacteria, potassium-solubilizing bacteria, alkali-resistant microorganism bacteria, 26 amino acids, protease and peptide according to the weight ratio of 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1, putting the mixture into a tank, mixing and stirring, putting the particles coated with the film for the first time, and stirring to ensure that the surfaces of the particles coated with the film for the first time are wrapped with a layer of compound microbial agent.
Fourthly, secondary film covering is carried out, fertilizer particles coated with a layer of compound microbial agent are put into a film coating machine again, and according to the measured raw materials, the coating materials, the adsorbent and the binder are mixed according to the proportion of 1: 0.35: mixing and stirring at a weight ratio of 0.35, atomizing, and coating a layer of film on the fertilizer particles.
And fifthly, processing for three times, namely mixing the sludge, the grass peat and the rooting powder according to the measured raw materials in a proportion of 1: 1: 0.35: 0.35, coating a film on the surface of the secondarily coated fertilizer particles in a dusting powder film coating mode, wherein the ratio of the acidic substance to the gypsum is 1: mixing and stirring the mixture in a tank body according to the weight ratio of 1, pouring fertilizer particles processed by covering the film with dusting powder into the tank body, stirring the mixture again, cooling and screening the mixture to obtain the product.
The invention has the beneficial effects that:
1. according to the invention, the soil is added into the formula, and the soil is produced by mixing the sludge and the turf, so that the microbial agent can keep the highest activity in the saline-alkali soil and can be rapidly propagated and produced, the treatment effect is better, the sludge and the turf are utilized, and the problems of sludge treatment direction and environmental pollution caused by rural burning crops are solved;
2. according to the invention, the rooting powder added into the soil can enhance the rooting capacity of the plants planted in the saline-alkali soil, so that the plants can better absorb the improved fertilizer through the root system, the growth survival rate of the plants is improved, and the treatment effect on the saline-alkali soil is improved;
3. according to the invention, the fertilizer is subjected to multi-layer wrapping, so that the fertilizer can be degraded for a long time after being applied to the saline-alkali soil, so that the fertilizer can exist in the saline-alkali soil for a longer time, and the fertilizer can continuously and effectively treat the saline-alkali soil.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a process flow diagram of the improved fertilizer preparation of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The compound microorganism coated long-acting saline-alkali soil improving fertilizer comprises, by weight, 15-25 parts of a saline-alkali soil improving material, 5-10 parts of a coating material, 10-25 parts of a compound microorganism microbial agent, 50-70 parts of a compound fertilizer and 20-40 parts of soil.
Specifically, the saline-alkali soil improvement material comprises an acidic substance and gypsum, wherein the ratio of the acidic substance to the gypsum is 1: 1 by weight ratio was stirred and mixed.
Specifically, the acidic substance is one of ammonium sulfate, ammonium nitrate, calcium superphosphate, potassium dihydrogen phosphate and potassium sulfate.
Specifically, the coating material comprises a coating substance, an adsorbent and a binder, wherein the coating substance, the adsorbent and the binder are mixed according to the ratio of 1: 0.35: 0.35 weight ratio and stirring.
Specifically, the coating material is one of polysaccharide natural materials such as starch, cellulose, chitosan and the like.
Specifically, the compound microbial agent comprises azotobacter, phosphate solubilizing bacteria, potassium solubilizing bacteria, alkali-resistant microbial bacteria, 26 amino acids, protease and peptide, wherein the azotobacter, the phosphate solubilizing bacteria, the potassium solubilizing bacteria, the alkali-resistant microbial bacteria, the 26 amino acids, the protease and the peptide are mixed according to a ratio of 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1 weight ratio and stirring.
Specifically, the microorganism bacteria in each gram of the compound microorganism bacteria agent is not less than 10 hundred million/g.
Specifically, the compound fertilizer is a compound fertilizer of medium and trace elements necessary for plant growth.
Specifically, the soil comprises sludge, grass peat and rooting powder, wherein the sludge, the grass peat and the rooting powder are mixed according to the ratio of 1: 0.35: 0.35 weight ratio, mixing, stirring and drying.
A preparation method of a compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer comprises the following steps:
firstly, raw materials are measured and preliminarily processed, the required raw materials are purchased to a production plant, and after the raw materials are measured by a professional measuring device, the compound fertilizer is granulated and dried according to a common process to obtain fertilizer particles.
And secondly, preliminarily coating, namely putting the manufactured fertilizer granules into a coating machine, and coating substances, an adsorbent and a binder according to the measured raw materials by a ratio of 1: 0.35: after 0.35 weight ratio stirs through the mixer, add and atomize in the coating machine, carry out preliminary tectorial membrane to the fertilizer granule to filter through the sieve separator to the fertilizer granule after atomizing, guarantee that the product specification of making is the same.
Thirdly, secondary processing, namely mixing azotobacter, phosphate-solubilizing bacteria, potassium-solubilizing bacteria, alkali-resistant microorganism bacteria, 26 amino acids, protease and peptide according to the weight ratio of 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1, stirring by a stirrer, putting the particles coated with the film for the first time after stirring, and stirring to ensure that the surfaces of the particles coated with the film for the first time are coated with a layer of the compound microbial agent.
Fourthly, secondary film covering is carried out, fertilizer particles coated with a layer of compound microbial agent are put into a film coating machine again, and according to the measured raw materials, the coating materials, the adsorbent and the binder are mixed according to the proportion of 1: 0.35: after being stirred by a stirrer, the fertilizer is poured into a film coating machine for atomization after the weight ratio of 0.35, and after one layer of film coating is carried out on fertilizer particles, the fertilizer particles after film coating are screened by a screening machine, so that the manufactured products have the same specification.
And fifthly, processing for three times, namely mixing the sludge, the grass peat and the rooting powder according to the measured raw materials in a proportion of 1: 1: 0.35: 0.35, coating a film on the surface of the secondarily coated fertilizer particles in a dusting powder film coating mode, wherein the ratio of the acidic substance to the gypsum is 1: mixing and stirring the mixture in a tank body according to the weight ratio of 1, pouring fertilizer particles processed by coating with dusting powder into the tank body, stirring again for cooling, screening the coated fertilizer particles through a screening machine, ensuring that the prepared products have the same specification and are screened, and then packaging and storing the products after the products are obtained.
The formula contains soil, and the soil produced by mixing the sludge and the turf ensures that the microbial agent can keep the highest activity in the saline-alkali soil and can be rapidly propagated and produced, so that the treatment effect is better, the sludge and the turf are utilized, and the problems of sludge treatment and environmental pollution caused by rural burning crops are solved; the rooting powder added into the soil can enhance the rooting capacity of the plants planted in the saline-alkali soil, so that the plants can better absorb the improved fertilizer through root systems, the growth survival rate of the plants is improved, and the treatment effect on the saline-alkali soil is improved; carry out the multilayer parcel to fertilizer for fertilizer is after saline and alkaline land fertilization, degrades fertilizer through long-time, makes fertilizer can be longer in saline and alkaline land, makes fertilizer can last effectually to be administered saline and alkaline land.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer is characterized in that: the saline-alkali soil improving agent comprises, by weight, 15-25 parts of a saline-alkali soil improving material, 5-10 parts of a coating material, 10-25 parts of a compound microbial agent, 50-70 parts of a compound fertilizer and 20-40 parts of soil.
2. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 1, which is characterized in that: the saline-alkali soil improvement material comprises an acidic substance and gypsum, wherein the ratio of the acidic substance to the gypsum is 1: 1 by weight ratio was stirred and mixed.
3. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 2, which is characterized in that: the acidic substance is one of ammonium sulfate, ammonium nitrate, calcium superphosphate, potassium dihydrogen phosphate and potassium sulfate.
4. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 1, which is characterized in that: the coating material comprises a coating substance, an adsorbent and a binder, wherein the coating substance, the adsorbent and the binder are mixed according to the ratio of 1: 0.35: 0.35 weight ratio and stirring.
5. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer for the saline-alkali soil as claimed in claim 4, which is characterized in that: the coating material is one of polysaccharide natural materials such as starch, cellulose, chitosan, etc.
6. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 1, which is characterized in that: the compound microbial agent comprises azotobacter, phosphate solubilizing bacteria, potassium solubilizing bacteria, alkali-resistant microbial bacteria, 26 amino acids, protease and peptide, wherein the azotobacter, the phosphate solubilizing bacteria, the potassium solubilizing bacteria, the alkali-resistant microbial bacteria, the 26 amino acids, the protease and the peptide are mixed according to the weight ratio of 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1 weight ratio and stirring.
7. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 6, which is characterized in that: and the microorganism bacteria in each gram of the compound microorganism bacteria agent is not less than 10 hundred million/g.
8. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 1, which is characterized in that: the compound fertilizer is a compound fertilizer of medium and trace elements necessary for plant growth.
9. The compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer as claimed in claim 1, which is characterized in that: the soil comprises silt, grass peat and rooting powder, wherein the silt, the grass peat and the rooting powder are mixed according to the ratio of 1: 0.35: 0.35 weight ratio, mixing, stirring and drying.
10. The method for preparing the compound microorganism enveloped long-acting saline-alkali soil improvement fertilizer according to any one of claims 1 to 9, which is characterized by comprising the following steps: the preparation method comprises the following steps:
firstly, raw materials are measured and preliminarily processed, the required raw materials are purchased to a production plant, and after the raw materials are measured by a professional measuring device, the compound fertilizer is granulated and dried according to a common process to obtain fertilizer particles;
and secondly, preliminarily coating, namely putting the manufactured fertilizer granules into a coating machine, and coating substances, an adsorbent and a binder according to the measured raw materials by a ratio of 1: 0.35: mixing and stirring the components in a weight ratio of 0.35, atomizing, and then coating a layer of film on the fertilizer particles;
thirdly, secondary processing, namely mixing azotobacter, phosphate-solubilizing bacteria, potassium-solubilizing bacteria, alkali-resistant microorganism bacteria, 26 amino acids, protease and peptide according to the weight ratio of 1: 0.25: 0.1: 0.15: 0.25: 0.2: 0.15: 0.1, putting the mixture into a tank, mixing and stirring, putting the particles coated with the film for the first time, and stirring to ensure that the surfaces of the particles coated with the film for the first time are wrapped with a layer of compound microbial agent;
fourthly, secondary film covering is carried out, fertilizer particles coated with a layer of compound microbial agent are put into a film coating machine again, and according to the measured raw materials, the coating materials, the adsorbent and the binder are mixed according to the proportion of 1: 0.35: mixing and stirring the components in a weight ratio of 0.35, atomizing, and then coating a layer of film on the fertilizer particles;
and fifthly, processing for three times, namely mixing the sludge, the grass peat and the rooting powder according to the measured raw materials in a proportion of 1: 1: 0.35: 0.35, coating a film on the surface of the secondarily coated fertilizer particles in a dusting powder film coating mode, wherein the ratio of the acidic substance to the gypsum is 1: mixing and stirring the mixture in a tank body according to the weight ratio of 1, pouring fertilizer particles processed by covering the film with dusting powder into the tank body, stirring the mixture again, cooling and screening the mixture to obtain the product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388403A (en) * | 2021-06-15 | 2021-09-14 | 青岛万慧源环保科技有限公司 | Slow-release microbial capsule for saline-alkali soil improvement and preparation method thereof |
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| WO2019091141A1 (en) * | 2017-11-13 | 2019-05-16 | 山东省农业科学院生物技术研究中心 | Dedicated controlled-release coated fertilizer for peanuts in saline-alkali soil, and preparation method therefor |
| CN110078564A (en) * | 2019-05-31 | 2019-08-02 | 沈阳化工研究院有限公司 | A kind of long-acting alkaline land improving fertilizer of complex microorganism coating type and preparation method |
| CN110423180A (en) * | 2019-09-10 | 2019-11-08 | 山东胜伟盐碱地科技有限公司 | A kind of slow-release compound fertilizer and preparation method thereof for alkaline land improving |
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2020
- 2020-11-18 CN CN202011294268.2A patent/CN112374939A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019091141A1 (en) * | 2017-11-13 | 2019-05-16 | 山东省农业科学院生物技术研究中心 | Dedicated controlled-release coated fertilizer for peanuts in saline-alkali soil, and preparation method therefor |
| CN110078564A (en) * | 2019-05-31 | 2019-08-02 | 沈阳化工研究院有限公司 | A kind of long-acting alkaline land improving fertilizer of complex microorganism coating type and preparation method |
| CN110423180A (en) * | 2019-09-10 | 2019-11-08 | 山东胜伟盐碱地科技有限公司 | A kind of slow-release compound fertilizer and preparation method thereof for alkaline land improving |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388403A (en) * | 2021-06-15 | 2021-09-14 | 青岛万慧源环保科技有限公司 | Slow-release microbial capsule for saline-alkali soil improvement and preparation method thereof |
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Application publication date: 20210219 |