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Bio-bactericide synergistic slow-release fertilizer and preparation method thereof

A technology of slow-release fertilizers and biological agents, which is applied in the direction of organic fertilizers, fertilizer mixtures, layered/coated fertilizers, etc., can solve the problems of large viscosity, poor fluidity and agglomeration of slow-release fertilizer particles, and achieve improved The effect of absorption and utilization, promotion of crop growth, and uniform distribution of bacterial agents

Pending Publication Date: 2019-04-19
中国-阿拉伯化肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are two ways to load the bacterial agent on the surface of the granular slow-release fertilizer: dusting powder and bacterial liquid coating. The bacterial liquid coating method has a more uniform distribution of the bacterial agent, a stronger combination with the fertilizer core, and does not damage the slow-release water-blocking layer. However, the physical The surface of the slow-release fertilizer has a layer of water-blocking coating, and the method of bacterial liquid coating will inevitably increase the moisture content of the product; therefore, the removal of water in the bacterial liquid coating, that is, the drying and effective adhesion of the bacterial agent, has become a Technical problems; In addition, the bacteria agent still has a large viscosity after drying, which makes the fluidity of the slow-release fertilizer particles worse, and even obviously agglomerates, all of which need to be overcome by technical measures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Bacterial solution preparation: The commercial Bacillus amyloliquefaciens original bacterial solution purchased from the market at 20 billion / g and the commercial glucose purchased from the market were prepared at a ratio of 1:1 to make a bacterial solution, the concentration of viable bacteria was 10 billion / g, and heated to 40- 60°C, it is a liquid with good flow.

[0047] At 1 meter from the discharge end of the polyurethane coated urea drum (this drum is a horizontally placed cylindrical tube with a series of flight boards and resin nozzles, the same below), the above-mentioned bacterial solution is sprayed on the coated urea material bed, The flow rate is 5 kg / ton of coated urea. With the rotation of the material bed, the bacterial solution is evenly dispersed. At the same time, because the slow-release fertilizer has a certain temperature at the end of the coating, the oily anti-caking agent is applied after the water in the bacterial solution evaporates (Shijiazhu...

Embodiment 2

[0050] Bacterial solution preparation: 100 billion / g commercial Bacillus subtilis powder purchased from the market: process water: amino acids (commodity raw materials purchased from the market) were prepared at a ratio of 1:4:5 to make a bacterial solution, and the concentration of viable bacteria was 10 billion / g. Before heating to 40-60 ℃, it is a liquid with good flow.

[0051] At 1 meter from the discharge end of the polyurethane coated urea drum, spray the above-mentioned bacterial solution on the coated urea material bed with a flow rate of 5 kg / ton of coated urea. With the rotation of the material bed, the bacterial solution is evenly dispersed, and after the water evaporates, Then apply an oil-based anti-caking agent with a flow rate of 1 kg / ton of coated urea to form a synergistic slow-release urea with biological agents.

[0052] The nutrient release period of the polyurethane-coated slow-release urea is 2 months, and the effective number of viable bacteria is 0.48 ...

Embodiment 3

[0054] Bacterial solution preparation: Prepare 10 billion / g commercial yeast powder purchased from the market: process water: glucose at a ratio of 1:3:1 to make a bacterial solution with a live bacterial concentration of 2 billion / g, and heat it to 40-60°C before use. For a well flowing liquid.

[0055] At 1 meter from the discharge end of the polyurethane coated urea drum, spray the above-mentioned bacterial solution on the coated urea material bed with a flow rate of 10 kg / ton coated urea. With the rotation of the material bed, the bacterial solution is evenly dispersed, and after the water evaporates, Then apply a water-based anti-caking agent with a flow rate of 2 kg / ton of coated urea to form a synergistic slow-release urea with biological agents.

[0056] The nutrient release period of the polyurethane-coated slow-release urea is 2 months, and the number of effective viable bacteria is 19 million / g.

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Abstract

The invention discloses a bio-bactericide synergistic slow-release fertilizer and a preparation method thereof, and belongs to the technical field of agricultural fertilizers. The bio-bactericide synergistic slow-release fertilizer is composed of a granular slow-release fertilizer core and an outer coating, wherein the outer coating is a double-layer structure, the inner layer is a bacteria solution coating, and the outer layer is an anti-blocking agent coating. The bacteria solution coating contains a microbial agent and an organic additive. The bio-bactericide synergistic slow-release fertilizer and the preparation method thereof have the advantages that the microbial agent is applied and attached on the surface of the slow-release fertilizer to form the bio-bactericide synergistic slow-release fertilizer, so that the application types of the microbial agent are expanded to all plant probiotics, the value-added and synergistic new functions are also given to the slow-release fertilizer microorganisms, and the problems of adhesion, drying and anti-blocking of the product are solved effectively from the technological view.

Description

technical field [0001] The invention relates to a biological bacterial agent synergistic slow-release fertilizer and a preparation method thereof, belonging to the technical field of agricultural fertilizers. Background technique [0002] Microbial agents are beneficial for promoting crop growth and protecting soil health. Through the activity of biological bacteria, not only can improve the physical and chemical properties of the soil, increase soil organic matter content and conversion efficiency, but also have the functions of decomposing potassium, decomposing phosphorus, and fixing nitrogen. Spectrum plant growth regulator stimulant. According to the types of crops and soil conditions in our country, the combined application of microbial agents and chemical fertilizers can not only increase crop production, reduce the amount of chemical fertilizers used, but also improve soil and crop quality and reduce pollution. [0003] Therefore, the combination of inorganic ferti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCC05C9/00C05G3/00C05G3/20C05G3/90C05G5/30C05G5/36C05G5/38C05F11/08C05F11/10
Inventor 茹铁军周宝俊王金铭杨振军吴舒石学勇刘懂伟张天山贲艳英李平远
Owner 中国-阿拉伯化肥有限公司
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