CN110903135A - Organic-inorganic compound fertilizer and preparation method thereof - Google Patents
Organic-inorganic compound fertilizer and preparation method thereof Download PDFInfo
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- CN110903135A CN110903135A CN201911176690.5A CN201911176690A CN110903135A CN 110903135 A CN110903135 A CN 110903135A CN 201911176690 A CN201911176690 A CN 201911176690A CN 110903135 A CN110903135 A CN 110903135A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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
Abstract
The invention relates to an organic-inorganic compound fertilizer and a preparation method thereof. The invention relates to an organic-inorganic compound fertilizer, which comprises the following compound raw materials in parts by weight: 720 portions of high-temperature pyrolysis brown coal powder, 200 portions of lignite fly ash, 55-110 portions of urea, 55-70 portions of potassium nitrate, 35-55 portions of potassium sulfate, 130 portions of monoammonium phosphate and 130 portions of monopotassium phosphate. The beneficial effects are as follows: the high-temperature pyrolysis lignite powder and the lignite coal ash can kill harmful components such as roundworm eggs, faecal coliform and the like, and the high-temperature pyrolysis lignite powder is obtained after lignite is insufficiently combusted under the condition of lacking oxygen, so that the production process is simple; the organic-inorganic compound fertilizer prepared by compounding the organic-inorganic compound fertilizer has the advantages that fertilizer nutrients can be fully absorbed by crops, and the utilization rate of the fertilizer is improved.
Description
Technical Field
The invention relates to the technical field of agricultural fertilizers, in particular to an organic-inorganic compound fertilizer and a preparation method thereof.
Background
The organic-inorganic compound fertilizer is a compound fertilizer containing both organic matter and a proper amount of chemical fertilizer, and is a commercial fertilizer prepared by carrying out harmless and effective treatment on organic materials such as animal excrement, straws and the like through microbial fermentation, adding a proper amount of chemical fertilizer, humic acid, amino acid or beneficial microbial bacteria, and granulating or directly mixing. At present, inorganic compound fertilizers are mostly used for fertilizing crops, the utilization rate of nitrogen and potassium of the inorganic compound fertilizers is low, the nutrient release in the early growth stage of the crops is fast, the nutrient serious shortage phenomenon can occur in the later growth stage, and the long-term culture of microorganisms in the soil for the growth of the crops can not be realized by adding organic matters on the basis of the inorganic compound fertilizers, so that the aim of promoting the growth of the crops through fertile soil is fulfilled, the waste materials required for the growth of the crops can not be generated for a long time by decomposing the organic matters through the microorganisms, the slow release of the fertilizers can be controlled, and meanwhile, the problems of ascarid egg death rate and faecal coliform colony number are difficult to solve by the organic and inorganic compound fertilizers.
Lignite is mineral coal with a relatively low coalification degree, is an initial product of organic biogenic rock which is transformed by dehydration and compaction after peat deposition, and is named because the appearance is brown or dark brown. The lignite storage capacity is large, but the defects of high moisture and high ash content are undoubtedly revealed, so that the lignite storage capacity is difficult to utilize, the key point is that the heating efficiency is influenced by the overhigh moisture content, and at present, coal ash generated after lignite combustion is treated as waste. The applicant researches the application of the lignite and the agricultural fertilizer for a long time and finds that the lignite also has great utilization value in the field of fertilizers.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an organic-inorganic compound fertilizer and a preparation method thereof based on pyrolysis of lignite powder and lignite powder coal ash, and solves the problem of applying lignite to a complex production process of agriculture; the application problem of the pulverized fuel ash waste of the lignite power plant in the agricultural field is solved; the technical problems of controlling the death rate of ascarid eggs, the number of faecal coliform and the like of the organic-inorganic compound fertilizer are solved; the problem of low fertilizer utilization rate is solved.
The invention provides an organic-inorganic compound fertilizer, which has the technical scheme that:
an organic-inorganic compound fertilizer comprises the following compound raw materials in parts by weight: 720 portions of high-temperature pyrolysis brown coal powder, 200 portions of lignite fly ash, 55-110 portions of urea, 55-70 portions of potassium nitrate, 35-55 portions of potassium sulfate, 130 portions of monoammonium phosphate and 130 portions of monopotassium phosphate.
Preferably, the compound fertilizer comprises the following compound raw materials in parts by weight: 550 portions of high-temperature pyrolysis brown coal powder, 180 portions of 140 portions of lignite coal ash, 55-110 portions of urea, 55-70 portions of potassium nitrate, 35-55 portions of potassium sulfate, 130 portions of monoammonium phosphate, and 130 portions of monopotassium phosphate.
Preferably, the mass fraction of the high-temperature cracked brown coal powder organic matter (dry) is 40-82%, the mass fraction of humic acid is 7-17%, and the mass fraction of trace elements is 4-8%
Preferably, the total mass fraction of the trace element Ca, the trace element Mg and the trace element S is 3-5%, and the total mass fraction of the trace element Cu, the trace element Fe, the trace element Mn, the trace element Zn, the trace element B and the trace element Mo is 1-3%.
Preferably, the loss on ignition of the brown coal fly ash is 2% -6%.
Preferably, the lignite fly ash contains 30% -45% of silicon dioxide, 15% -21% of aluminum oxide, 5% -11% of ferric oxide, 14% -19% of calcium oxide, 2% -4% of magnesium oxide and 0.1% -2% of free calcium oxide.
Preferably, the mass fraction of the total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20%, the mass fraction of the organic matters is more than or equal to 40%, the death rate of roundworm eggs is 100%, the number of faecal coliform groups is 3/g, and the mass fraction of chloride ions is less than 0.8%.
Preferably, the pyrolysis brown coal fines are products of oxygen-deficient combustion; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants.
Preferably, the pyrolyzed lignite powder is evaluated to be practically non-toxic by acute oral toxicity classification criteria.
The invention also provides a preparation method of the organic-inorganic compound fertilizer, which comprises the following steps:
preparing compound raw materials in parts by weight as follows: high-temperature pyrolysis lignite powder 500-containing materials, lignite powder 140-containing materials 200-containing materials, urea 55-110 parts, potassium nitrate 55-70 parts, potassium sulfate 35-55 parts, monoammonium phosphate 115-containing materials 130 parts, and monopotassium phosphate 100-containing materials 130 parts; mixing the above materials, and packaging.
The implementation of the invention comprises the following technical effects:
the high-temperature pyrolysis lignite powder and the lignite coal ash can kill harmful ingredients such as ascarid eggs, faecal coliform and the like, and the high-temperature pyrolysis lignite powder is obtained after lignite is insufficiently combusted (under-oxygen combustion) under the condition of lack of oxygen, so that the production process is simple; the organic-inorganic compound fertilizer prepared by compounding the organic-inorganic compound fertilizer has the advantages that fertilizer nutrients can be fully absorbed by crops, and the utilization rate of the fertilizer is improved.
The organic-inorganic compound fertilizer can provide comprehensive nutrient elements for plant growth, regulate the immune system of plants, promote the plant growth, can be used in the whole growth period of crops, reduce cost and improve efficiency, has simple preparation process and reduces production cost. After being compounded, the raw materials have the functions of improving quality and enhancing efficiency of fertilizer efficiency.
The biological characters of crops can be obviously improved, the growth vigor and the growth phase are improved, and the plant height, the crown diameter and the weight average of single plants are obviously increased; can remarkably improve the yield of crops and has obvious benefits of increasing both production and income. The organic-inorganic compound fertilizer disclosed by the invention is easy to absorb by plants, and is beneficial to sterilizing, expelling insects, inhibiting plant diseases and insect pests, promoting the autoimmune system of the plants, strengthening roots, promoting seedlings, promoting the absorption of the plants, regulating the metabolism of the plants, improving the soil and improving the quality and stress resistance of the crops; can be widely used for grain, vegetable, melon and fruit, tea, edible fungus, garden plant, Chinese herbal medicine and other economic crops.
The main compound raw materials of the invention utilize lignite with high natural reserves as raw materials, and the cost is low.
Detailed Description
The present invention will be described in detail with reference to the following examples, which are intended to facilitate the understanding of the present invention and should not be construed as limiting in any way.
Example 1
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 500 parts of pyrolysis brown coal powder, 144 parts of lignite coal ash, 55 parts of urea, 55 parts of potassium nitrate, 35 parts of potassium sulfate and 120 parts of monoammonium phosphate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
Example 2
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 720 parts of pyrolysis brown coal powder, 200 parts of lignite fly ash, 110 parts of urea, 70 parts of potassium nitrate, 55 parts of potassium sulfate, 130 parts of monoammonium phosphate and 130 parts of monopotassium phosphate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
Example 3
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 576 parts of pyrolysis brown coal powder, 144 parts of brown coal ash, 55 parts of urea, 55 parts of potassium nitrate, 55 parts of potassium sulfate and 115 parts of monoammonium phosphate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
Example 4
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 576 parts of pyrolysis brown coal powder, 144 parts of lignite coal ash, 110 parts of urea, 100 parts of potassium dihydrogen phosphate and 35 parts of potassium sulfate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
Example 5
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 648 parts of pyrolysis brown coal powder, 72 parts of lignite coal ash, 55 parts of urea, 55 parts of potassium nitrate, 55 parts of potassium sulfate and 115 parts of monoammonium phosphate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
Example 6
The preparation method of the organic-inorganic compound fertilizer comprises the following steps: preparing compound raw materials in parts by weight as follows: 648 parts of pyrolysis brown coal powder, 72 parts of lignite coal ash, 110 parts of urea, 100 parts of monopotassium phosphate and 35 parts of potassium sulfate; mixing the above materials, and packaging.
Specifically, the mass fraction of the high-temperature cracked lignite powder organic matter (dry) is 40% -82%, the mass fraction of humic acid is 7% -17%, and the mass fraction of trace elements is 4% -8%. The mass fraction of the trace elements (Ca + Mg + S) is 3-5%, and the mass fraction of the trace elements (Cu + Fe + Mn + Zn + B + Mo) is 1-3%. The ignition loss of the lignite fly ash is 2-6%. 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash. The mass fraction of total nutrients of the organic-inorganic compound fertilizer is more than or equal to 20 percent, the mass fraction of organic matters is more than or equal to 40 percent, the death rate of roundworm eggs is 100 percent, the number of faecal coliform groups is 3 per gram, and the mass fraction of chloride ions is less than 0.8 percent. Pyrolysis brown coal powder is a product after oxygen deficient combustion, which means insufficient combustion in the absence of oxygen; the lignite fly ash is the coal ash obtained after lignite is combusted in power plants and boiler plants. The high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
The organic-inorganic compound fertilizer obtained by the invention is subjected to a specific field application and popularization test, and the result is as follows.
On the premise of consistent high yield cultivation management measures, the test adopts a random block arrangement test design, one organic-inorganic compound fertilizer treatment group is arranged, two comparison groups (comparison 1 and comparison 2) are arranged, each group is repeated for three times, the results are averaged, the area of a small area is 20 square meters (2.00m multiplied by 10.00m), the row spacing of planted plants is 20cm multiplied by 20cm, 500 plants are planted in each small area, 16667 raw vegetables are planted per mu, and protective rows are arranged on the periphery.
TABLE 1 biological and economic Properties of lettuce treated according to the invention and those treated according to the control
Table 2 real yield table of the cell treated by the present invention and the control example
TABLE 3 Table of the yield and economic benefits of the inventive and comparative treatments
Table 4 lettuce quality table treated according to the invention and the comparative example
In conclusion, based on habitual fertilization, lettuce is taken as an example, and the organic-inorganic compound fertilizer can obviously improve the biological properties of lettuce, improve the growth vigor and growth phase and obviously increase the plant height, the crown diameter and the weight average of single plants by applying the organic-inorganic compound fertilizer to the lettuce; can remarkably improve the yield of lettuce and has obvious benefits of increasing both production and income.
According to the organic-inorganic compound fertilizer, the high-temperature pyrolysis lignite powder and the lignite coal ash can kill harmful ingredients such as ascarid eggs, faecal coliform bacteria and the like, and the high-temperature pyrolysis lignite powder is obtained after lignite is insufficiently combusted (under-oxygen combustion) in the absence of oxygen, so that the production process is simple; the organic-inorganic compound fertilizer prepared by compounding the organic-inorganic compound fertilizer has the advantages that fertilizer nutrients can be fully absorbed by crops, and the utilization rate of the fertilizer is improved.
The organic-inorganic compound fertilizer can provide comprehensive nutrient elements for plant growth, regulate the immune system of plants, promote the plant growth, can be used in the whole growth period of crops, reduce cost and improve efficiency, has simple preparation process and reduces production cost. After being compounded, the raw materials have the functions of improving quality and enhancing efficiency of fertilizer efficiency.
The applicant tests the six embodiments of the invention on different crops, the effect is very obvious, and the invention can be widely used for grain, vegetable, melon and fruit, tea, edible fungi, garden plants, Chinese herbal medicine and other economic crops. The above describes a set of data for lettuce experiments to support the unexpected technical effect of the present invention.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The organic-inorganic compound fertilizer is characterized by comprising the following compound raw materials in parts by weight: 720 portions of high-temperature pyrolysis brown coal powder, 200 portions of lignite fly ash, 55-110 portions of urea, 55-70 portions of potassium nitrate, 35-55 portions of potassium sulfate, 130 portions of monoammonium phosphate and 130 portions of monopotassium phosphate.
2. The organic-inorganic compound fertilizer according to claim 1, wherein: the compound fertilizer comprises the following compound raw materials in parts by weight: 550 portions of high-temperature pyrolysis brown coal powder, 180 portions of 140 portions of lignite coal ash, 55-110 portions of urea, 55-70 portions of potassium nitrate, 35-55 portions of potassium sulfate, 130 portions of monoammonium phosphate, and 130 portions of monopotassium phosphate.
3. The organic-inorganic compound fertilizer according to claim 1 or 2, wherein: the high-temperature pyrolysis lignite powder comprises 40-82% of organic matters, 7-17% of humic acid and 4-8% of trace elements.
4. The organic-inorganic compound fertilizer according to claim 1, wherein: the total mass fraction of the trace element Ca, the trace element Mg and the trace element S is 3-5%, and the total mass fraction of the trace element Cu, the trace element Fe, the trace element Mn, the trace element Zn, the trace element B and the trace element Mo is 1-3%.
5. The organic-inorganic compound fertilizer according to claim 1, wherein: the ignition loss of the lignite fly ash is 2-6%.
6. The organic-inorganic compound fertilizer according to claim 1, wherein: 30 to 45 percent of silicon dioxide, 15 to 21 percent of aluminum oxide, 5 to 11 percent of ferric oxide, 14 to 19 percent of calcium oxide, 2 to 4 percent of magnesium oxide and 0.1 to 2 percent of free calcium oxide in the lignite fly ash.
7. The organic-inorganic compound fertilizer according to claim 1, wherein: the total nutrient mass fraction of the organic-inorganic compound fertilizer is more than or equal to 20%, the organic matter mass fraction is more than or equal to 40%, the ascarid egg death rate is 100%, the faecal coliform number is 3/g, and the mass fraction of chloride ions is less than 0.8%.
8. The organic-inorganic compound fertilizer according to claim 1, wherein: the high-temperature cracked brown coal powder is a product after oxygen-deficient combustion; the lignite fly ash is the coal ash obtained after lignite is combusted in a power plant or a boiler plant.
9. The organic-inorganic compound fertilizer according to any one of claims 1 to 8, wherein: the high-temperature cracked brown coal powder is evaluated to be actually nontoxic through an acute oral toxicity grading standard.
10. The preparation method of the organic-inorganic compound fertilizer is characterized by comprising the following steps:
preparing compound raw materials in parts by weight as follows: high-temperature pyrolysis lignite powder 500-containing materials, lignite powder 140-containing materials 200-containing materials, urea 55-110 parts, potassium nitrate 55-70 parts, potassium sulfate 35-55 parts, monoammonium phosphate 115-containing materials 130 parts, and monopotassium phosphate 100-containing materials 130 parts; mixing the above materials, and packaging.
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| CN108929168A (en) * | 2018-08-29 | 2018-12-04 | 吉林市金穗肥业有限公司 | A kind of organic-inorganic compound fertilizer and preparation method thereof |
| CN111607407A (en) * | 2020-06-15 | 2020-09-01 | 云南中翼鼎东投资集团生物科技开发有限公司 | Lignite mineral source soil conditioner and preparation method thereof |
| CN113493357A (en) * | 2020-04-02 | 2021-10-12 | 武夷山博程环保科技有限公司 | Water-soluble foliar fertilizer special for tea, preparation and application method thereof |
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