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Preparation method of biological bacterial fertilizer gelatin pill for wheat

A technology of biological bacterial fertilizer and capsule, applied in application, nitrogen fertilizer, potash fertilizer and other directions, can solve the problems of waste of fertilizer and manpower and material resources, high fertilizer usage, inconvenient transportation, etc., to increase fertilizer period, promote root length, and improve absorption The effect of utilization

Active Publication Date: 2018-11-23
ZHEJIANG SEGA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art that it is not easy to store fertilizers in the agricultural production process, it is difficult to store biological fertilizers and chemical fertilizers together, it is inconvenient to transport, the amount of fertilizers is high, the frequency of fertilization is high, and the waste of fertilizers and manpower and material resources is serious. To solve the problem that wheat needs different fertilizers in different growth periods, we provide a fertilizer whose inner layer is coated with controlled-release degradable resin, and whose outer layer is microencapsulated Streptomyces fertilizer capsules

Method used

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  • Preparation method of biological bacterial fertilizer gelatin pill for wheat
  • Preparation method of biological bacterial fertilizer gelatin pill for wheat
  • Preparation method of biological bacterial fertilizer gelatin pill for wheat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: The preparation steps of biological bacterial fertilizer capsules are as follows:

[0036] (1) 35 parts by weight of urea, 10 parts of zinc phosphate, 30 parts of superphosphate, 20 parts of potassium sulfate and 5 parts of borax are ground into powder, granulated after mixing, and made into a fertilizer core;

[0037] (2) Gelatinize 30g of starch at 80°C for 20min, add 10g of polyvinyl alcohol, and keep stirring until dissolved;

[0038] (3) Add 10 g of glycerol and 5 ml of 0.5 wt % Tween-80 solution, and adjust the pH of the system to 1 with hydrochloric acid solution;

[0039] (4) Add 5g formaldehyde, continue to stir 10-60min, obtain film-forming liquid;

[0040] (5) Use high-pressure gas to atomize the film-forming liquid at an atomization speed of 3ml / L, spray and coat the fertilizer core in a fluidized bed at 70°C, and after natural cooling, starch / polyvinyl alcohol modified film package Covered fertilizer core.

[0041](6) Dissolve 15g of agar i...

Embodiment 2

[0044] Embodiment 2: The preparation steps of biological bacterial fertilizer capsules are as follows:

[0045] (1) 43 parts by weight of urea, 7 parts of zinc phosphate, 30 parts of superphosphate, 15 parts of potassium sulfate and 5 parts of borax are ground into powder, mixed and granulated to make a fertilizer core;

[0046] (2) Gelatinize 50g of starch at 90°C for 45min, add 15g of polyvinyl alcohol, and keep stirring until dissolved;

[0047] (3) Add 8g of glycerol and 10ml of 0.7wt% Tween-80 solution, and use hydrochloric acid solution to adjust the pH of the system to 1.5;

[0048] (4) Add 7g formaldehyde, continue to stir for 10-60min, obtain film-forming liquid;

[0049] (5) Use high-pressure gas to atomize the film-forming liquid at an atomization speed of 1.5ml / L, spray and coat the fertilizer core in a fluidized bed at 75°C, and after natural cooling, the starch / polyvinyl alcohol modified film Coated fertilizer core.

[0050] (6) Dissolve 60g of agar in water, ...

Embodiment 3

[0053] Embodiment 3: The preparation steps of biological bacterial fertilizer capsules are as follows:

[0054] (1) 45 parts by weight of urea, 8 parts of zinc phosphate, 30 parts of superphosphate, 13 parts of potassium sulfate and 4 parts of borax are ground into powder, mixed and granulated to make a fertilizer core;

[0055] (2) Gelatinize 45g of starch at 85°C for 30min, add 10g of polyvinyl alcohol, and keep stirring until dissolved;

[0056] (3) Add 15 ml of glycerin and 5 ml of 1wt% Tween-80 solution, and use hydrochloric acid solution to adjust the pH of the system to 2;

[0057] (4) Add 10g formaldehyde, continue to stir for 10-60min, obtain film-forming liquid;

[0058] (5) Use high-pressure gas to atomize the film-forming liquid at an atomization speed of 1.5ml / L, spray and coat the fertilizer core in a fluidized bed at 50°C, and after natural cooling, the starch / polyvinyl alcohol modified film Coated fertilizer core.

[0059] (6) Dissolve 50g of agar in water, ...

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Abstract

The invention relates to the field of biological bacterial fertilizers, in particular to a preparation method of a biological bacterial fertilizer gelatin pill for wheat. The preparation method comprises the following steps of (1) granulating the fertilizer, so as to prepare a fertilizer core; (2) coating the fertilizer core by a starch / polyvinyl alcohol modified film; (3) dissolving agar into water, adding calcium alginate, then sterilizing, adding a streptomyces bacteria solution and the fertilizer core to obtain a mixture, dripping into oil, and forming microspheres; (4) under the stirringcondition, adding sodium polyphosphate and the microspheres into a chitosan acetic acid solution; (5) fetching out the microspheres, cleaning by an aqueous solution of Tween 80, then cleaning by deionized water, adding into an aqueous solution of calcium chloride, stirring, fetching out, and drying, so as to obtain the biological bacterial fertilizer gelatin pill. The biological bacterial fertilizer gelatin pill has the advantages that the inner and outer double-layer structure is formed, the outer layer can release the streptomyces bacteria fertilizer, and the inner fertilizer core can release a chemical fertilizer; the used materials are biodegradable materials, the residue in soil is avoided, and the green and environment-friendly effects are realized.

Description

technical field [0001] The invention relates to the field of biological bacterial fertilizer, in particular to a preparation method of biological bacterial fertilizer capsules for wheat. Background technique [0002] In order to achieve high and stable yields of agricultural products, a large amount of chemical fertilizers are often used in the agricultural production process, resulting in an increasingly serious ecological environment. For the sustainable development of agriculture, the transformation of modern agriculture to green agriculture and ecological agriculture has become inevitable, and the role of microbial agents in it has become increasingly prominent. In recent years, microbial inoculants have been widely used in biological control. So far, there have been reports of various microbial inoculants. It has a significant promotion effect, but because the microbial inoculum is sensitive to external environmental factors (humidity, temperature and light, etc.), it ...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B1/02C05G3/00C05G5/12C05G5/30C05B7/00C05B17/00C05C9/00C05D1/02C05D3/00C05D9/02C05F11/00C05F11/08
Inventor 胡剑锋胡娟红俞冬冬沈学锋郑锋
Owner ZHEJIANG SEGA SCI & TECH