CN113480361A - Organic-inorganic compound fertilizer and preparation method thereof - Google Patents
Organic-inorganic compound fertilizer and preparation method thereof Download PDFInfo
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- CN113480361A CN113480361A CN202110865937.5A CN202110865937A CN113480361A CN 113480361 A CN113480361 A CN 113480361A CN 202110865937 A CN202110865937 A CN 202110865937A CN 113480361 A CN113480361 A CN 113480361A
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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
- 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
- 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
- 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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Abstract
The invention belongs to the technical field of compound fertilizers. The invention provides an organic-inorganic compound fertilizer which is prepared from the following raw materials in parts by mass: 15-25 parts of organic materials; 15-30 parts of humic acid; 10-20 parts of a nitrogen fertilizer; 10-20 parts of a phosphate fertilizer; 10-15 parts of a potash fertilizer; 1-5 parts of trace element substances; 3-5 parts of mineral substances; 3-5 parts of a high-molecular salt-resistant water-retaining material. The organic-inorganic compound fertilizer has high content of effective components and high utilization rate of nutrients by crops; the water retention and fertilizer retention capacity can be improved, the granulation effect is good, the high yield of crops is ensured, and simultaneously the high quality and stress resistance of the crops are realized; compared with the conventional inorganic compound fertilizer, the organic and inorganic compound fertilizer of the invention enables the per mu yield of wheat to be improved by more than or equal to 25 percent and the per mu yield of corn to be improved by more than or equal to 27 percent.
Description
Technical Field
The invention relates to the technical field of compound fertilizers, in particular to an organic-inorganic compound fertilizer and a preparation method thereof.
Background
Crop straws and cakes contain a large amount of organic matters, nitrogen, phosphorus, potassium, trace elements and other nutrient components, but the utilization rate of the crop straws and the cakes is low as important byproducts in agricultural production. Direct combustion is mainly used, so that air pollution is avoided, and accidents such as fire disasters can be caused. Therefore, how to effectively utilize crop straws and cakes is one of the problems which need to be solved urgently in agricultural production.
At present, the organic-inorganic compound fertilizer is prepared by using straw and cake meal as organic fertilizer. However, the organic-inorganic compound fertilizer in the prior art has the following problems: the content of effective components such as nitrogen, phosphorus and potassium and organic matters which play a role in the growth and development of crops is too low, and the content of humic acid is low; the application effect of organic matters is poor, and high-content inorganic fertilizers are needed to be matched; the organic and inorganic materials are not easy to combine and difficult to granulate, and the soil hardening is aggravated by using the adhesive for a long time, which is not beneficial to the green sustainable development of agriculture. The above problems of compound fertilizers result in low yield and poor quality of crops. Humic acid is used as an efficient organic matter and is a high-quality material for producing organic-inorganic compound fertilizers, but the humic acid is a dispersed material and is difficult to granulate, and the production process of the humic acid complex fertilizer in the prior art has high energy consumption, high equipment cost and complex process flow, so that the application of the humic acid in the organic-inorganic compound fertilizers is limited. The water-retaining agent has strong water-retaining capacity, and can resist drought, retain water, retain fertilizer, improve efficiency, improve soil, increase yield and income and the like. However, after the common water retention agent meets salt or inorganic fertilizer, the water retention coefficient can be rapidly reduced and even lost.
Therefore, the research and development of the organic-inorganic compound fertilizer for improving the granulation effect and the utilization rate of the effective components of the fertilizer and improving the yield, the quality and the stress resistance of crops have important value and significance.
Disclosure of Invention
The invention aims to provide an organic-inorganic compound fertilizer and a preparation method thereof aiming at the defects of the prior art. The organic-inorganic compound fertilizer has high content of effective components and high utilization rate of nutrients by crops; can improve the water retention and fertilizer retention capacity, has good granulation effect, ensures high yield of crops, and realizes high quality and stress resistance of the crops. Compared with the conventional inorganic compound fertilizer, the organic and inorganic compound fertilizer of the invention enables the per mu yield of wheat to be improved by more than or equal to 25 percent and the per mu yield of corn to be improved by more than or equal to 27 percent.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an organic-inorganic compound fertilizer which is prepared from the following raw materials in parts by mass:
preferably, the organic material comprises cakes and/or straws, the cakes comprise one or more of soybean meal, peanut meal and rapeseed meal, and the straws comprise one or more of sorghum straws, rape straws, corn straws and wheat straws.
Preferably, the humic acid comprises any two of humic acid, potassium humate and potassium fulvate.
Preferably, the nitrogen fertilizer comprises one or more of urea, ammonium chloride and ammonium nitrate; the phosphate fertilizer comprises one or more of calcium superphosphate, calcium magnesium phosphate and potassium dihydrogen phosphate; the potash fertilizer comprises potassium chloride and/or potassium sulfate.
Preferably, the trace element substances comprise one or more of borax, manganese sulfate, zinc ammonium phosphate, zinc sulfate, copper ammonium phosphate and ammonium molybdate; the mineral is bentonite, montmorillonite powder or diatomite powder.
Preferably, the high-molecular salt-resistant water-retention material comprises one or more of starch-acrylic acid graft copolymer, carboxymethyl cellulose, polyacrylonitrile-based cross-linked material and starch-styrene sulfonic acid graft copolymer.
The invention also provides a preparation method of the organic-inorganic compound fertilizer, which comprises the following steps:
1) sequentially carrying out carbonization treatment and refinement treatment on the organic material to obtain organic material powder;
2) mixing nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element substances and mineral substances, and then carrying out thinning treatment to obtain inorganic particles;
3) mixing humic acid, a high-molecular salt-resistant water-retaining material, organic material powder and inorganic particles, and then sequentially granulating and drying to obtain the organic-inorganic compound fertilizer.
Preferably, the water content of the organic material in the step 1) is 12-18%, the temperature of the carbonization treatment is 250-280 ℃, and the time is 0.5-1.5 h; the particle size of the organic material powder is 1.3-2 mm.
Preferably, the particle size of the inorganic particles in the step 2) is 0.5-1.5 mm.
Preferably, the drying treatment in the step 3) is carried out at the temperature of 120-170 ℃ for 0.5-1.5 h; the particle size of the organic-inorganic compound fertilizer is 4-6 mm, and the water content is 5-10%.
The beneficial effects of the invention include the following:
1) the organic-inorganic compound fertilizer has high content of effective components, comprehensive and balanced nutrients and high utilization rate of the nutrients by crops; the compound fertilizer has a slow release effect, and can improve the water retention and fertility retention capacity, improve the soil and fertilize the soil.
2) The organic-inorganic compound fertilizer has high strength and good granulation effect, and does not agglomerate in the transportation and storage processes.
3) The compound fertilizer has huge energy, can ensure high yield of crops and simultaneously realize high quality and stress resistance of the crops.
4) The invention effectively utilizes agricultural resources, improves the utilization rate of agricultural wastes and reduces the pollution to the environment.
Detailed Description
The invention provides an organic-inorganic compound fertilizer which is prepared from the following raw materials in parts by mass:
the organic-inorganic compound fertilizer comprises 15-25 parts of organic materials, preferably 18-22 parts, and more preferably 20 parts.
The organic material preferably comprises cakes and/or straws, the cakes preferably comprise one or more of soybean meal, peanut meal and rapeseed meal, and the straws preferably comprise one or more of sorghum straws, rape straws, corn straws and wheat straws; when the organic material contains several components at the same time, the components are preferably mixed in an equal mass ratio.
The organic material can effectively improve the nutrient absorption efficiency of crops, improve the content of organic matters in soil, slowly release nutrients into the soil environment and meet the requirements of crops on nutrients in the later growth period.
The organic-inorganic compound fertilizer comprises 15-30 parts of humic acid, preferably 18-26 parts, more preferably 20-24 parts, and more preferably 22 parts; the humic acid preferably contains any two of humic acid, potassium humate and potassium fulvate; the two components of the humic acids are preferably mixed in equal mass ratio.
The humic acid is a mineral resource with high organic matter content and large storage capacity, and can improve the drought resistance, cold resistance and disease and pest resistance of crops; the potassium humate and the potassium fulvate can be directly absorbed by root systems of crops and supply carbon sources to the crops, so that the stress resistance and the yield of the crops are improved, and the quality of the crops is improved; the potassium humate and the potassium fulvate are easy to dissolve in water, have good cohesiveness after being dissolved, can effectively bind the organic material, the inorganic fertilizer and the inorganic components together, and have good granulation effect of the compound fertilizer.
The organic-inorganic compound fertilizer comprises 10-20 parts of nitrogen fertilizer, preferably 12-18 parts, more preferably 14-16 parts, and more preferably 15 parts; the nitrogen fertilizer preferably contains one or more of urea, ammonium chloride and ammonium nitrate; when the nitrogen fertilizer contains several components at the same time, the components are preferably mixed in an equal mass ratio.
The organic-inorganic compound fertilizer comprises 10-20 parts of phosphate fertilizer, preferably 12-18 parts, more preferably 14-16 parts, and more preferably 15 parts; the phosphate fertilizer preferably comprises one or more of calcium superphosphate, calcium magnesium phosphate and potassium dihydrogen phosphate; when the phosphate fertilizer contains several components at the same time, the components are preferably mixed in an equal mass ratio.
The organic-inorganic compound fertilizer comprises 10-15 parts of potassium fertilizer, preferably 12-14 parts, and further preferably 13 parts; the potassium fertilizer preferably comprises potassium chloride and/or potassium sulfate; when the potash fertilizer contains both potassium chloride and potassium sulfate, the two are preferably mixed in an equal mass ratio.
The organic-inorganic compound fertilizer comprises 1-5 parts of trace element substances, preferably 2-4 parts, and further preferably 3 parts; the trace element substances preferably comprise one or more of borax, manganese sulfate, zinc ammonium phosphate, zinc sulfate, copper ammonium phosphate and ammonium molybdate; when the trace element substance contains several components at the same time, the components are preferably mixed in an equal mass ratio.
The organic-inorganic compound fertilizer comprises 3-5 parts of mineral substances, preferably 3.5-4.5 parts, and further preferably 4 parts; the mineral is preferably bentonite, montmorillonite powder or diatomite powder.
The mineral substance can improve soil, adsorb nutrients and effectively supply nutrients to crops, and has the effects of improving soil, delaying release of nutrients and improving nutrient utilization rate, thereby achieving the purpose of high yield of crops.
The organic-inorganic compound fertilizer comprises 3-5 parts of a high-molecular salt-resistant water-retaining material, preferably 3.5-4.5 parts, and further preferably 4 parts; the high-molecular salt-resistant water-retention material preferably comprises one or more of starch-acrylic acid graft copolymer, carboxymethyl cellulose, polyacrylonitrile-based cross-linked material and starch-styrene sulfonic acid graft copolymer; when the high-molecular salt-resistant water-retention material contains several components at the same time, the components are preferably mixed in equal mass ratio.
The high-molecular salt-resistant water-retention material disclosed by the invention is combined with organic materials and humic acids, so that the water-retention superposition effect is fully exerted, the effects of resisting drought, retaining water, slowly releasing nutrients and fertilizing soil are achieved, the requirements of crops on the nutrients are met, and the effects of increasing the yield and income of the crops and improving the quality are achieved; the high molecular salt-resistant water-retaining material can also absorb fertilizer nutrients, effectively reduce the loss of nitrogen, phosphorus and potassium in the compound fertilizer, reduce the pollution of the compound fertilizer to the environment and improve the utilization rate of the fertilizer.
The invention also provides a preparation method of the organic-inorganic compound fertilizer, which comprises the following steps:
1) sequentially carrying out carbonization treatment and refinement treatment on the organic material to obtain organic material powder;
2) mixing nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element substances and mineral substances, and then carrying out thinning treatment to obtain inorganic particles;
3) mixing humic acid, a high-molecular salt-resistant water-retaining material, organic material powder and inorganic particles, and then sequentially granulating and drying to obtain the organic-inorganic compound fertilizer.
According to the invention, before the carbonization treatment in the step 1), the organic material is preferably dried, and the water content of the dried organic material is preferably 12-18%, more preferably 14-16%, and more preferably 15%; the temperature of the carbonization treatment is preferably 250-280 ℃, more preferably 260-270 ℃, and more preferably 263-267 ℃; the time of the carbonization treatment is preferably 0.5-1.5 h, and more preferably 1 h.
The product obtained by carbonizing the organic material has a large number of pore structures, can improve the soil aggregate structure, improve the water retention capacity, reduce the soil volume weight and slowly release nutrients into the soil environment.
The organic materials are preferably subjected to refining treatment in the step 1) and are sequentially crushed by a crusher and screened by a vibrating screen to obtain organic material powder; the particle size of the organic material powder is preferably 1.3-2 mm, more preferably 1.5-1.8 mm, and even more preferably 1.6-1.7 mm.
The particle size of the inorganic particles in the step 2) is preferably 0.5-1.5 mm, more preferably 0.8-1.2 mm, and even more preferably 0.9-1.1 mm; the thinning treatment is preferably performed by a pulverizer.
The mixing in the step 3) is preferably carried out at a rotating speed of 40-60 r/min, and more preferably 50 r/min; preferably obtaining spherical particles after the granulation; the temperature of the drying treatment is preferably 120-170 ℃, more preferably 130-160 ℃, and more preferably 140-150 ℃; the drying time is preferably 0.5 to 1.5 hours, and more preferably 1 hour.
The particle size of the organic-inorganic compound fertilizer in the step 3) is preferably 4-6 mm, more preferably 4.5-5.5 mm, and even more preferably 5 mm; the water content of the organic-inorganic compound fertilizer is preferably 5-10%, more preferably 6-9%, and even more preferably 7-8%.
The preparation method of the organic-inorganic compound fertilizer is simple and has low raw material cost.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
And (3) air-drying 7.5kg of sorghum straws and 7.5kg of corn straws to obtain the organic material with the water content of 17%. Carbonizing the dried organic material at 250 ℃ for 1.5h, then crushing by a crusher, and screening by a vibrating screen to obtain organic material powder with the particle size of 1.8 mm.
11kg of urea, 10kg of calcium superphosphate, 10kg of potassium chloride, 1kg of zinc sulfate and 3kg of montmorillonite powder are uniformly mixed and then crushed by a crusher to obtain inorganic particles with the particle size of 1.5 mm.
Mixing 10kg of humic acid, 6kg of potassium fulvate, 3kg of starch-acrylic acid graft copolymer, organic matter material powder and inorganic particles uniformly at the rotating speed of 40r/min, granulating, and drying at 130 ℃ for 1.5h to obtain the organic-inorganic compound fertilizer with the particle size of 6mm and the water content of 10%.
In the organic-inorganic compound fertilizer of example 1, N, P, K mass fractions were 17%, 12.8% and 9.8%, respectively, and the mass fraction of organic matter was 25.6%.
Example 2
And (3) drying 12kg of soybean meal and 12kg of rapeseed meal in the air to obtain an organic material with the water content of 13%. Carbonizing the dried organic material at 280 ℃ for 0.5h, then crushing by a crusher, and screening by a vibrating screen to obtain organic material powder with the particle size of 1.4 mm.
After 9kg of ammonium chloride, 9kg of ammonium nitrate, 9.5kg of calcium magnesium phosphate, 9.5kg of monopotassium phosphate, 15kg of potassium sulfate, 2kg of borax, 2kg of zinc ammonium phosphate and 4kg of bentonite are uniformly mixed, the mixture is crushed by a crusher to obtain inorganic particles with the particle size of 0.7 mm.
Uniformly mixing 15kg of potassium humate, 15kg of potassium fulvate, 5kg of starch-styrene sulfonic acid graft copolymer, organic material powder and inorganic particles at the rotating speed of 60r/min, granulating, and drying at 170 ℃ for 0.5h to obtain the organic-inorganic compound fertilizer with the particle size of 4mm and the water content of 6%.
In the organic-inorganic compound fertilizer of example 2, N, P, K mass fractions were 18%, 12.5%, and 10.2%, respectively, and the mass fraction of organic matter was 28.5%.
Example 3
And (3) drying 10kg of wheat straws and 10kg of corn straws in the air to obtain the organic material with the water content of 16%. Carbonizing the dried organic material at 270 ℃ for 1h, then crushing by a crusher, and screening by a vibrating screen to obtain organic material powder with the particle size of 1.6 mm.
After 15kg of ammonium chloride, 15kg of monopotassium phosphate, 13kg of potassium chloride, 3kg of ammonium molybdate and 4kg of diatomite powder were uniformly mixed, they were pulverized by a pulverizer to obtain inorganic particles having a particle size of 1 mm.
Mixing 10kg of humic acid, 10kg of potassium fulvate, 4kg of carboxymethyl cellulose, organic matter material powder and inorganic particles uniformly at a rotating speed of 50r/min, granulating, and drying at 150 ℃ for 1h to obtain the organic-inorganic compound fertilizer with the particle size of 5mm and the water content of 7%.
In the organic-inorganic compound fertilizer of example 3, N, P, K mass fractions were 18.5%, 13.4%, and 12.5%, respectively, and the mass fraction of organic matter was 31.5%.
Comparative example 1
The potassium dihydrogen phosphate of example 3 was replaced with an equal mass of monoammonium phosphate, the carboxymethyl cellulose was replaced with an equal mass of acrylic acid-acrylamide copolymer, and the organic material was carbonized at 300 ℃ for 0.5 hour under the same conditions as in example 3.
Comparative example 2
The potassium fulvate of example 3 is replaced by xanthan gum of equal mass, and the organic material is carbonized at 230 ℃ for 4h, and the other conditions are the same as example 3.
Comparative example 3
Humic acid, sodium carboxymethylcellulose and diatomaceous earth powder were not added, and the other conditions were the same as in example 3.
Effect of different fertilizers on wheat
Wheat field tests were carried out on 7 groups of fertilizers, namely, the fertilizers in examples 1 to 3, comparative examples 1 to 3 and a control group (inorganic compound fertilizer produced by stanley, namely, 15 mass percent of nitrogen, phosphorus and potassium). The 7 groups of fertilizers respectively adopt 3 mu of test fields, the conditions of the test fields are the same, the varieties and properties of the planted wheat are completely the same, and the conditions of the fertilizing amount, the fertilizing time and the frequency of the 7 groups of fertilizers, the watering frequency, the pesticide spraying frequency and the like are completely the same. The wheat acre yield and the soil organic matter content improvement rate after harvesting of the examples 1 to 3 and the comparative examples 1 to 3 are shown in table 1 relative to the control group.
TABLE 1 wheat test results of examples 1 to 3 and comparative examples 1 to 3
| Kind of fertilizer | Wheat yield per mu increase rate | Increase rate of organic matter content in soil |
| Example 1 | 25％ | 5.1％ |
| Example 2 | 27％ | 7.0％ |
| Example 3 | 30％ | 7.5％ |
| Comparative example 1 | 7％ | 1.1％ |
| Comparative example 2 | 4％ | 0.8％ |
| Comparative example 3 | -2％ | -0.6％ |
As can be seen from table 1, the wheat acre yield and the soil organic matter content can be increased in examples 1 to 3 and comparative examples 1 and 2 compared with the conventional inorganic compound fertilizer of a control group, wherein the comparative examples 1 and 2 change the types of phosphate fertilizer, polymer salt-tolerant water-retaining material and binder on the basis of the example 3, and the wheat acre yield and the soil organic matter content are reduced after the carbonization temperature and time are changed. The wheat acre yield and the soil organic matter content of the comparative example 3 are reduced compared with those of the conventional inorganic compound fertilizer of the control group.
The compound fertilizer of the embodiments 1-3 has good granulation effect, is not easy to loosen, and has good water and fertilizer retention capacity; by applying the compound fertilizer of the embodiment 1-3, the wheat ears are large and full, and no plant diseases or insect pests exist.
Effect of different fertilizers on corn
In the field test of corn, 7 groups of fertilizers, namely the fertilizers in examples 1 to 3, comparative examples 1 to 3 and a control group (inorganic compound fertilizer produced by stanley company and having the mass fraction of nitrogen, phosphorus and potassium of 15 percent), are used. The 7 groups of fertilizers respectively adopt 3 mu of test fields, the conditions of the test fields are the same, the varieties and properties of the planted corns are completely the same, and the conditions of the fertilizing amount, the fertilizing time and the frequency of the 7 groups of fertilizers, the watering frequency, the pesticide spraying frequency and the like are completely the same. The acre yield of corn and the increase rate of the organic matter content of the harvested soil in the examples 1 to 3 and the comparative examples 1 to 3 relative to the control group are shown in table 2.
TABLE 2 corn test results of examples 1 to 3 and comparative examples 1 to 3
| Kind of fertilizer | Corn acre yield increasing rate | Increase rate of organic matter content in soil |
| Example 1 | 27％ | 5.6％ |
| Example 2 | 30％ | 6.8％ |
| Example 3 | 31％ | 7.3％ |
| Comparative example 1 | 6％ | 1.0％ |
| Comparative example 2 | 4％ | 0.5％ |
| Comparative example 3 | -3％ | -0.3％ |
As can be seen from table 2, the acre yield of corn and the organic matter content of soil can be increased in examples 1 to 3 and comparative examples 1 and 2 compared with the conventional inorganic compound fertilizer of a control group, wherein the comparative examples 1 and 2 change the types of phosphate fertilizer, polymer salt-tolerant water-retaining material and binder on the basis of the example 3, and the acre yield of corn and the organic matter content of soil are reduced after the carbonization temperature and time are changed. The acre yield of corn and the organic matter content of soil of the comparative example 3 are reduced compared with the conventional inorganic compound fertilizer of the control group.
The compound fertilizer of the embodiments 1-3 has good granulation effect, is not easy to loosen, and has good water and fertilizer retention capacity; by applying the compound fertilizer of the embodiment 1-3, the corn kernels are large and full and have no plant diseases and insect pests.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The organic-inorganic compound fertilizer is characterized by being prepared from the following raw materials in parts by mass:
2. the organic-inorganic compound fertilizer as claimed in claim 1, wherein the organic material comprises cakes and/or straws, the cakes comprise one or more of soybean meal, peanut meal and rapeseed meal, and the straws comprise one or more of sorghum straws, rape straws, corn straws and wheat straws.
3. The organic-inorganic compound fertilizer according to claim 1 or 2, wherein the humic acid comprises any two of humic acid, potassium humate and potassium fulvate.
4. The organic-inorganic compound fertilizer as claimed in claim 3, wherein the nitrogen fertilizer comprises one or more of urea, ammonium chloride and ammonium nitrate; the phosphate fertilizer comprises one or more of calcium superphosphate, calcium magnesium phosphate and potassium dihydrogen phosphate; the potash fertilizer comprises potassium chloride and/or potassium sulfate.
5. The organic-inorganic compound fertilizer as claimed in claim 4, wherein the trace element substances comprise one or more of borax, manganese sulfate, zinc ammonium phosphate, zinc sulfate, copper ammonium phosphate and ammonium molybdate; the mineral is bentonite, montmorillonite powder or diatomite powder.
6. The organic-inorganic compound fertilizer as claimed in claim 4 or 5, wherein the high molecular salt-resistant water-retention material comprises one or more of starch-acrylic acid graft copolymer, carboxymethyl cellulose, polyacrylonitrile-based cross-linked material and starch-styrene sulfonic acid graft copolymer.
7. The method for producing an organic-inorganic composite fertilizer according to any one of claims 1 to 6, characterized by comprising the steps of:
1) sequentially carrying out carbonization treatment and refinement treatment on the organic material to obtain organic material powder;
2) mixing nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element substances and mineral substances, and then carrying out thinning treatment to obtain inorganic particles;
3) mixing humic acid, a high-molecular salt-resistant water-retaining material, organic material powder and inorganic particles, and then sequentially granulating and drying to obtain the organic-inorganic compound fertilizer.
8. The preparation method according to claim 7, characterized in that the water content of the organic material in the step 1) is 12-18%, the temperature of the carbonization treatment is 250-280 ℃, and the time is 0.5-1.5 h; the particle size of the organic material powder is 1.3-2 mm.
9. The method according to claim 7 or 8, wherein the inorganic particles of step 2) have a particle size of 0.5 to 1.5 mm.
10. The preparation method according to claim 9, wherein the drying treatment in step 3) is carried out at 120-170 ℃ for 0.5-1.5 h; the particle size of the organic-inorganic compound fertilizer is 4-6 mm, and the water content is 5-10%.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503723A (en) * | 2011-10-26 | 2012-06-20 | 安徽农业大学 | Organic/inorganic drought resisting compound fertilizer and preparation method thereof |
| CN103449915A (en) * | 2013-08-27 | 2013-12-18 | 黑龙江省农业科学院农村能源研究所 | Organic/inorganic compound fertilizer taking biomass charcoal as matrix, preparation method of organic/inorganic compound fertilizer and preparation method of fine straw biomass charcoal powder |
| CN103896693A (en) * | 2014-04-16 | 2014-07-02 | 郑州帝益生态农业科技工程有限责任公司 | Water-holding and cultivating functional compound fertilizer and preparation method thereof |
| CN105175100A (en) * | 2015-07-07 | 2015-12-23 | 郑州金正生物化工有限公司 | Organic and inorganic composite fertilizer and preparation method therefor |
| CN107032922A (en) * | 2017-05-08 | 2017-08-11 | 史丹利农业集团股份有限公司 | A kind of humic acid functional bio-feritlizer and preparation method thereof |
| CN112174756A (en) * | 2020-11-06 | 2021-01-05 | 河南省农业科学院植物营养与资源环境研究所 | Organic-inorganic compound fertilizer and preparation method thereof |
-
2021
- 2021-07-29 CN CN202110865937.5A patent/CN113480361A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503723A (en) * | 2011-10-26 | 2012-06-20 | 安徽农业大学 | Organic/inorganic drought resisting compound fertilizer and preparation method thereof |
| CN103449915A (en) * | 2013-08-27 | 2013-12-18 | 黑龙江省农业科学院农村能源研究所 | Organic/inorganic compound fertilizer taking biomass charcoal as matrix, preparation method of organic/inorganic compound fertilizer and preparation method of fine straw biomass charcoal powder |
| CN103896693A (en) * | 2014-04-16 | 2014-07-02 | 郑州帝益生态农业科技工程有限责任公司 | Water-holding and cultivating functional compound fertilizer and preparation method thereof |
| CN105175100A (en) * | 2015-07-07 | 2015-12-23 | 郑州金正生物化工有限公司 | Organic and inorganic composite fertilizer and preparation method therefor |
| CN107032922A (en) * | 2017-05-08 | 2017-08-11 | 史丹利农业集团股份有限公司 | A kind of humic acid functional bio-feritlizer and preparation method thereof |
| CN112174756A (en) * | 2020-11-06 | 2021-01-05 | 河南省农业科学院植物营养与资源环境研究所 | Organic-inorganic compound fertilizer and preparation method thereof |
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| CN113912444A (en) * | 2021-10-15 | 2022-01-11 | 安徽儒商生物科技有限公司 | Biological humic acid compound fertilizer and preparation method thereof |
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