CN112573967B - Special loss-control fertilizer for corn and preparation method thereof - Google Patents
Special loss-control fertilizer for corn and preparation method thereof Download PDFInfo
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- CN112573967B CN112573967B CN202011609637.2A CN202011609637A CN112573967B CN 112573967 B CN112573967 B CN 112573967B CN 202011609637 A CN202011609637 A CN 202011609637A CN 112573967 B CN112573967 B CN 112573967B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
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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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention discloses a special controlled-release fertilizer for corn and a preparation method thereof, belonging to the technical field of fertilizers. The raw materials are as follows: urea: 100-150 parts of sodium humate: 10-30 parts of a loss control agent: 1-5 parts; nitrogen conversion control agent: 0.5 to 1.5 portions; the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, wherein the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1; wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1. according to the invention, a nitrogen conversion control agent and a loss control agent are introduced into the traditional basic fertilizer, so that the fertilizer not only can effectively improve the quality of corn, but also can prevent and treat the infection of corn microsporum.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a special controlled-release fertilizer for corn and a preparation method thereof.
Background
The synergistic loss-control fertilizer is produced by adding a fertilizer nutrient loss-control agent for controlling the loss of main nutrients in the production process of the compound fertilizer, and is a novel compound fertilizer based on an endoplasmic molecular net, which is developed aiming at reducing the losses of volatilization, runoff, leaching and the like after the compound fertilizer is applied. The fertilizer nutrient loss control agent is a preparation which is formed by compounding organic and inorganic compounds, can control the loss of compound fertilizer nutrients through the specific physicochemical properties of the fertilizer nutrient loss control agent, and belongs to one of fertilizer retention agents.
The special loss-control fertilizer for corn can reduce the application times of the fertilizer, improve the utilization rate of the fertilizer, loosen soil, improve the soil fertility and supply nutrient elements for the growth of crops. The product can reduce nutrient loss, enhance the activity of various enzymes in crops, promote the differentiation of organic matters, and promote the release of quick-acting nutrients. And has remarkable synergistic effect on the fertilizer, enhances the stress resistance of crops such as drought resistance, cold resistance, disease resistance and the like, and improves the crop yield.
The fertilizer nutrient loss control agent is prepared by an automatic batching system, and the special loss control fertilizer for corn is produced by adopting a urea-ammonia-acid method rotary drum granulation process and a continuous melting rotary drum coating method anti-blocking wrapping process.
The corn loss-control fertilizer is different from coated slow-release fertilizers, urea-formaldehyde slow-release fertilizers, stable fertilizers and the like, and the loss-control agent contained in the corn loss-control fertilizer is prepared by accurately compounding attapulgite clay which is environment-friendly, low in cost and solvent-free with biological products and performing radiation modification, and is a material for controlling the nutrient loss of the fertilizer and an excellent binder for producing the compound fertilizer. The migration rate of fertilizer nutrients along with water flow is slowed down, so that the purpose of controlling the loss of the fertilizer nutrients is achieved. The fertilizer has the characteristics of environmental protection, natural degradation, and capability of improving the physical and chemical properties of soil and improving the fertilizer and water retention capacity of the soil after long-term application. The development of the synergistic loss-control compound fertilizer is one of the important ways to realize zero increase of chemical fertilizers in China, and is also related to national food safety and agricultural sustainable development.
However, the causative bacterium of northern leaf blight is Helminthosporium maydis (Bipolaris maydis (Nisikado et Miyake) Shoem), which belongs to Deuteromycotina (Deuteromycotina). The corn southern leaf blight is one of important diseases in corn production areas in China, and is common and serious in warm and humid areas of yellow river and Yangtze river basin; the corn small spot disease is serious in summer corn production areas in the northern area of Huaihei of Anhui province, generally causes 15 to 20 percent of yield reduction, and the serious yield reduction reaches more than 50 percent, even no harvest.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems in the prior art, the invention provides the special controlled-release fertilizer for the corn and the preparation method thereof, wherein a nitrogen conversion control agent and a controlled-release agent are introduced into the traditional basic fertilizer, and the fertilizer not only can effectively improve the quality of the corn, but also can prevent and treat the infection of the corn micrococcus. The tests show that the average corn yield in examples 1-5 (range 15421 kg/hm) is comparable to the prior art 2 -15672kg/hm 2 ) The average starch content (the range is 78.3mg-80.3 mg) of the corn grains is higher, the average protein content (the range is 11.4% -12.7%) of the corn grains is higher, and the average infection rate (the range is 8.5% -9.8%) is lower, so that the fertilizer prepared in the examples 1-5 can effectively improve the quality of the corn and prevent and treat the infection of corn macula lutea; the fertilizer prepared in example 5 has relatively large difference in significance among indexes.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The special controlled-release fertilizer for the corn comprises the following raw materials in parts by weight:
urea: 100 to 150 portions of the components are mixed,
sodium humate: 10 to 30 portions of the raw materials are mixed,
a loss control agent: 1-5 parts;
nitrogen conversion control agent: 0.5 to 1.5 portions;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the composite material comprises the following raw materials in parts by weight:
urea: 120 to 140 portions of the raw materials, namely,
sodium humate: 13 to 24 portions of the raw materials, namely,
a loss control agent: 1-5 parts;
nitrogen conversion control agent: 0.5 to 1.5 portions;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the composite material comprises the following raw materials in parts by weight:
urea: 130 parts of (a) to (b),
sodium humate: 20 parts of (by weight) of a reaction kettle,
a loss control agent: 3 parts of a mixture;
nitrogen conversion control agent: 1 part;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.5cm-0.8cm.
In the loss-controlled fertilizer special for corns,
the particle size range of the attapulgite is 1cm-2cm;
the particle size range of the zeolite powder is 0.3mm-0.5mm.
A preparation method of a special controlled-release fertilizer for corn comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a nitrogen conversion control agent and a loss control agent are introduced into the traditional basic fertilizer, so that the fertilizer not only can effectively improve the quality of corn, but also can prevent and treat the infection of corn microsporum. The tests show that the average corn yield in examples 1-5 (range of 15421 kg/hm) is higher than that in comparative examples 1-5 2 -15672kg/hm 2 ) The average starch content (in the range of 78.3mg-80.3 mg) of the corn kernels is high, the average protein content (in the range of 11.4% -12.7%) of the corn kernels is high, and the average infection rate (in the range of 8.5% -9.8%) is low, so that the fertilizers prepared in the examples 1-5 can effectively improve the quality of the corn and prevent and control the infection of corn microsporum; wherein prepared in example 5The obvious difference of each index of the fertilizer is relatively large.
Detailed Description
The invention is further described with reference to specific examples.
Example 1
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 100 parts of (by weight) of a mineral oil,
sodium humate: 30 parts of (a) to (b),
a loss control agent: 1 part;
nitrogen conversion control agent: 1.5 parts;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.5cm
In the loss-controlled fertilizer special for corns,
the particle size range of the attapulgite is 2cm;
the particle size range of the zeolite powder is 0.3mm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed for stirring and uniformly mixing is 200r/min.
Example 2
The special controlled-release fertilizer for corn comprises the following raw materials in parts by weight:
urea: 150 parts of (by weight) of a mineral oil,
sodium humate: 10 parts of (a) to (b),
a loss control agent: 5 parts of a mixture;
nitrogen conversion control agent: 0.5 part;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.8cm.
In the special controlled-release fertilizer for corn,
the particle size range of the attapulgite is 1cm;
the particle size range of the zeolite powder is 0.5mm.
The preparation method of the special controlled-release fertilizer for corn comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into polyvinyl alcohol solution to prepare suspension, irradiating with X-ray, drying and pulverizing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Example 3
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 120 parts of (by weight) of a mineral oil,
sodium humate: 24 parts of (a) to (b),
a loss control agent: 1 part;
nitrogen conversion control agent: 1.5 parts;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.8cm.
In the loss-controlled fertilizer special for corns,
the particle size range of the attapulgite is 1cm;
the particle size range of the zeolite powder is 0.3mm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into polyvinyl alcohol solution to prepare suspension, irradiating with X-ray, drying and pulverizing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Example 4
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
the composite material comprises the following raw materials in parts by weight:
urea: 140 parts of (by weight) of a carrier liquid,
sodium humate: 13 parts of (a) to (b),
a loss control agent: 5 parts of a mixture;
nitrogen conversion control agent: 0.5 part;
wherein the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, and the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
In the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.8cm.
In the special controlled-release fertilizer for corn,
the particle size range of the attapulgite is 2cm;
the particle size range of the zeolite powder is 0.5mm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Example 5
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 130 parts of (by weight) of a reaction kettle,
sodium humate: 20 parts of (by weight), and mixing the components,
a loss control agent: 3 parts of a mixture;
nitrogen conversion control agent: 1 part;
the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, wherein the dosage ratio of the attapulgite to the zeolite powder to the sodium bicarbonate to the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
in the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.6cm.
In the special controlled-release fertilizer for corn,
the particle size range of the attapulgite is 1.5cm;
the particle size range of the zeolite powder is 0.4mm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into polyvinyl alcohol solution to prepare suspension, irradiating with X-ray, drying and pulverizing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Comparative example 1
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 130 parts of (a) to (b),
sodium humate: 20 parts of (by weight) of a reaction kettle,
nitrogen conversion control agent: 1 part;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
in the special controlled-release fertilizer for corn,
the particle size range of the urea is 0.6cm.
The preparation method of the special controlled-release fertilizer for corn comprises the following steps:
the method comprises the following steps of firstly stirring and uniformly mixing urea, sodium humate and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Comparative example 2
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 130 parts of (a) to (b),
sodium humate: 20 parts of (by weight), and mixing the components,
a loss control agent: 3 parts of a mixture;
the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, wherein the dosage ratio of the attapulgite to the zeolite powder to the sodium bicarbonate to the polyvinyl alcohol is 5:1:2:1.
in the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.6cm.
In the loss-controlled fertilizer special for corns,
the particle size range of the attapulgite is 1.5cm;
the particle size range of the zeolite powder is 0.4mm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the preparation method comprises the steps of firstly stirring and uniformly mixing urea, sodium humate and a loss control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Comparative example 3
The special loss-control fertilizer for corn comprises the following raw materials in parts by weight:
urea: 130 parts of (by weight) of a reaction kettle,
sodium humate: 20 parts of (by weight) of a reaction kettle,
a loss control agent: 3 parts of a mixture;
nitrogen conversion control agent: 1 part;
the loss control agent comprises attapulgite and polyvinyl alcohol, wherein the using amount ratio of the attapulgite to the polyvinyl alcohol is 5:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
in the loss-controlled fertilizer special for corns,
the particle size range of the urea is 0.6cm.
In the special controlled-release fertilizer for corn,
the particle size range of the attapulgite is 1.5cm.
The preparation method of the special controlled-release fertilizer for the corns comprises the following steps:
the method comprises the following steps of firstly, uniformly stirring and mixing urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation.
In the preparation method of the special controlled-release fertilizer for corn,
the preparation method of the loss control agent comprises the following steps:
firstly, adding attapulgite into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing.
In the preparation method of the special controlled-release fertilizer for corn,
the drying temperature is 30 ℃.
In the preparation method of the special controlled-release fertilizer for corn,
the rotating speed of stirring and uniformly mixing is 200r/min.
Comparative example 4
Chinese invention patent, application number: CN201310645212.0, public bulletin number: CN103664369B, discloses a synergistic loss-control fertilizer and a preparation method thereof, and the specific implementation manner of the specification thereof is as follows:
"Total N is greater than or equal to 26% to increase efficiency and control loss fertilizer, the specific process operation steps are as follows:
(1) 243.6kg of ammonium chloride (containing N-24.0%), 216.5kg of ammonium sulfate (containing N-20.5%) and 43.3kg of ammonium bicarbonate (containing N-17.1%) are respectively measured, the raw materials are crushed by a chain crusher and then are sent into a double horizontal shaft mixer, and are evenly mixed with 117.0kg of zeolite powder, 30.9kg of sodium humate, 1.6kg of polyacrylamide, 37.9kg of chelated iron, 0.7kg of brown sugar, 6kg of asbestos powder, 0.4kg of compound potassium nitrophenolate and 0.8kg of additive, and then are sent into a disc granulator;
(2) 297.7kg of ammonium nitrate solution with the mass percentage concentration of 92% is sprayed on the mixed material in a disc granulator;
(3) Firstly drying, firstly cooling and coarsely screening, feeding the screened particles with the particle size of 2.00-4.75mm into a coating machine, returning large particles larger than 4.75mm to be crushed, and returning fine particles smaller than 2.00mm to be granulated;
(4) And (3) spraying 3.61kg of oily anti-caking agent on each ton of the screened particles with qualified particle size in a coating machine by using a plunger metering pump through an atomizing nozzle to obtain the functional nitrogen fertilizer.
(5) 793.7kg of the functional nitrogen fertilizer and 206.3kg of urea (containing N-46.2%) are measured and sent into a single bag of blending equipment, and a finished product is prepared by blending and automatic quantitative packaging.
Comparative example 5
Chinese invention patent, application number: CN201610048327.5, publication no: CN106995329A, discloses a fertilizer synergist and an organic fertilizer using the same, and the detailed implementation manner of the specification thereof:
1, uniformly mixing 3 parts by weight of attapulgite (colloid grade, 200 meshes) and 7 parts by weight of sepiolite (colloid grade, particle size 200 meshes), adding the mixture into a stainless steel cup filled with ammonia water to prepare a suspension of 5g/L, sealing the cup, standing the cup for 4 hours at-70 ℃, transferring the suspension into a glass dish, drying the suspension at 50 ℃, and crushing the suspension to 200 meshes.
2. 300 parts by weight of the powder obtained in (1) and 3 parts by weight of aminosilicone oil were mixed uniformly and added to ethanol to prepare a 10g/L suspension, which was then irradiated with X-rays (1000KV, 10 KGy) for 5 minutes, dried at 50 ℃ and pulverized to 200 mesh.
3. 300 parts by weight of the powder obtained in (2) and 3 parts by weight of 3,4 dimethylpyrazole phosphate (particle size 600 mesh) were mixed uniformly to obtain a fertilizer synergist.
4. The synergist is added into the conventional organic fertilizer according to the mass fraction of 10%, and the organic fertilizer is obtained by roller granulation (the particle size is 5 mm).
The experiment result of Ningxia Guyuan market in 2015 shows that the synergistic organic fertilizer (1000 jin/mu) can increase the yield of potatoes (sweet potato 168, gansu Seiyilan potato industry Co., ltd.) by 10.4% under the equal culture condition compared with a control group only added with the conventional organic fertilizer, and the test group 2 added with the synergistic agent can still increase the yield by 6.4% after the application amount of the organic fertilizer per mu is reduced by 100 jin.
Example 6
Specific applications of the fertilizers in examples 1-5 and comparative examples 1-5:
we examined the performance indexes of the special synergistic controlled-release fertilizer for different corns, and the results are as follows (as shown in Table 1):
the specific test method is as follows: selecting a certain corn test point (the lead element content in soil is 64 mg/kg) in Changfeng county of Anhui Hefei, transplanting healthy corn (in a seedling stage, seeds are purchased from Heifeng Fengle Seiko, inc., variety No. 21), applying the fertilizer, simultaneously carrying out a pathogenic bacterium (Helminthosporium maydis) infection test of corn small spot, and then carrying out statistics on the quality and the infection condition of the corn at the kernel stage of the corn.
TABLE 1
The experiment shows (in conjunction with Table 1) that the average corn yield (in the range of 15421 kg/hm) is higher in examples 1-5 than in comparative examples 1-5 2 -15672kg/hm 2 ) The average starch content (the range is 78.3mg-80.3 mg) of the corn grains is higher, the average protein content (the range is 11.4% -12.7%) of the corn grains is higher, and the average infection rate (the range is 8.5% -9.8%) is lower, so that the fertilizer prepared in the examples 1-5 can effectively improve the quality of the corn and prevent and treat the infection of corn macula lutea; the fertilizer prepared in example 5 has relatively large difference in significance among indexes.
In conclusion, the nitrogen conversion control agent and the loss control agent are introduced into the traditional basic fertilizer, so that the fertilizer can effectively improve the quality of the corn and prevent and treat the infection of the corn micrococcus.
While the invention has been described in further detail with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The special controlled-release fertilizer for the corn is characterized in that: the composite material comprises the following raw materials in parts by weight:
urea: 120 to 140 portions of the components of the emulsion,
sodium humate: 13 to 24 portions of the raw materials are mixed,
a loss control agent: 1-5 parts;
nitrogen conversion control agent: 0.5 to 1.5 portions;
the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, wherein the dosage ratio of the attapulgite, the zeolite powder, the sodium bicarbonate and the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
the preparation method of the special loss-control fertilizer for the corn comprises the following steps:
firstly, uniformly stirring urea, sodium humate, a loss control agent and a nitrogen conversion control agent, and finally conveying to an extrusion granulator for extrusion granulation;
the preparation method of the loss control agent comprises the following steps:
mixing attapulgite, zeolite powder and sodium bicarbonate, adding into a polyvinyl alcohol solution to prepare a suspension, then carrying out irradiation treatment by using X-rays, and finally drying and crushing;
the drying temperature is 30 ℃;
the rotating speed for stirring and uniformly mixing is 200r/min.
2. The special controlled-release fertilizer for corn according to claim 1, which is characterized in that: the composite material comprises the following raw materials in parts by weight:
urea: 130 parts of (by weight) of a reaction kettle,
sodium humate: 20 parts of (by weight) of a reaction kettle,
a loss control agent: 3 parts of a mixture;
nitrogen conversion control agent: 1 part;
the loss control agent comprises attapulgite, zeolite powder, sodium bicarbonate and polyvinyl alcohol, wherein the dosage ratio of the attapulgite to the zeolite powder to the sodium bicarbonate to the polyvinyl alcohol is 5:1:2:1;
wherein the nitrogen conversion control agent comprises 3, 4-dimethylpyrazole phosphate and dicyandiamide, and the dosage ratio of the 3, 4-dimethylpyrazole phosphate to the dicyandiamide is 2:1.
3. the special controlled-release fertilizer for corn according to any one of claims 1-2, characterized in that: the particle size range of the urea is 0.5cm-0.8cm.
4. The special controlled-release fertilizer for corn according to any one of claims 1-2, characterized in that: the particle size range of the attapulgite is 1cm-2cm;
the particle size range of the zeolite powder is 0.3mm-0.5mm.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070376A (en) * | 2011-01-07 | 2011-05-25 | 六安亿牛生物科技有限公司 | Loss-control organic fertilizer and preparation method thereof |
| CN103553846A (en) * | 2013-10-22 | 2014-02-05 | 中国科学院微生物研究所 | Special slow release-controlled release fertilizer for potatoes |
| CN103936493A (en) * | 2013-01-21 | 2014-07-23 | 河北农业大学 | Novel sustained-release long-acting compound fertilizer and preparation method thereof |
| CN106995330A (en) * | 2016-01-25 | 2017-08-01 | 中国科学院微生物研究所 | A kind of fertilizer synergist and use its Chemical Mixed Fertilizer |
| CN106995329A (en) * | 2016-01-25 | 2017-08-01 | 中国科学院微生物研究所 | A kind of fertilizer synergist and use its organic fertilizer |
| CN107473834A (en) * | 2017-09-09 | 2017-12-15 | 安徽瑞虎肥业有限公司 | Special Loss-controlled fertilizer of corn and preparation method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070376A (en) * | 2011-01-07 | 2011-05-25 | 六安亿牛生物科技有限公司 | Loss-control organic fertilizer and preparation method thereof |
| CN103936493A (en) * | 2013-01-21 | 2014-07-23 | 河北农业大学 | Novel sustained-release long-acting compound fertilizer and preparation method thereof |
| CN103553846A (en) * | 2013-10-22 | 2014-02-05 | 中国科学院微生物研究所 | Special slow release-controlled release fertilizer for potatoes |
| CN106995330A (en) * | 2016-01-25 | 2017-08-01 | 中国科学院微生物研究所 | A kind of fertilizer synergist and use its Chemical Mixed Fertilizer |
| CN106995329A (en) * | 2016-01-25 | 2017-08-01 | 中国科学院微生物研究所 | A kind of fertilizer synergist and use its organic fertilizer |
| CN107473834A (en) * | 2017-09-09 | 2017-12-15 | 安徽瑞虎肥业有限公司 | Special Loss-controlled fertilizer of corn and preparation method thereof |
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