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Preparation method and application of microbial agent capable of increasing utilization rate of phosphorus in soil

A technology of microbial agent and utilization rate, applied in the direction of biochemical equipment and methods, microorganisms, microorganisms, etc., to achieve the effect of strong stability and good absorption

Pending Publication Date: 2017-05-31
广州富生源环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of phosphorus fixation, soil phosphorus deficiency is widespread in the world, and insufficient phosphorus supply is one of the most important limiting factors in world agricultural production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A microbial agent for improving the utilization rate of phosphorus in soil, said microbial agent includes phosphorus solubilizing bacteria and an adsorbent, the ratio by mass is 1:4, and said microbial agent contains 5×10 viable bacteria 8 cfu / g.

[0026] Wherein, the phosphate-solubilizing bacteria include organic phosphorus-dissolving bacteria and inorganic phosphorus-dissolving bacteria. Described adsorbent comprises corn stalk hydrothermal biochar, binder, protective agent, and described binder is pullulan, and described protective agent is edible soybean oil, and its mass ratio is 5:2: 1. Mechanically crush the corn stalks, pass through a 50-mesh sieve, put them into a hydrothermal reaction kettle, add distilled water into the hydrothermal reaction kettle, wherein the volume ratio of the corn stalk crushed matter to the distilled water is listed as 1:4, stir evenly, and seal; The hydrothermal reaction kettle was placed in an oven at 180°C for 15 hours, and then i...

Embodiment 2

[0036] A microbial agent for improving the utilization rate of phosphorus in soil, the microbial agent includes phosphorus-solubilizing bacteria and an adsorbent, the ratio by mass is 1:4, and the microbial agent contains 5×10 viable bacteria 8 .

[0037] Wherein, the phosphate-solubilizing bacteria include organic phosphorus-dissolving bacteria and inorganic phosphorus-dissolving bacteria. Described adsorbent comprises corn stalk hydrothermal biochar, binder, protective agent, and described binder is pullulan, and described protective agent is edible soybean oil, and its mass ratio is 5:2: 1. Mechanically crush the corn stalks, pass through a 50-mesh sieve, put them into a hydrothermal reaction kettle, add distilled water to the hydrothermal reaction kettle, wherein the volume ratio of the corn stalk crushed matter to the distilled water is listed as 1:5, stir evenly, and seal; The hydrothermal reaction kettle was placed in an oven at 190°C for 16 hours, and then it was tak...

Embodiment 3

[0047] A microbial agent for improving the utilization rate of phosphorus in soil, said microbial agent includes phosphorus solubilizing bacteria and an adsorbent, the proportion by mass is 1:4, and said microbial agent contains 1×10 viable bacteria 9 cfu / g.

[0048] Wherein, the phosphate-solubilizing bacteria include organic phosphorus-dissolving bacteria and inorganic phosphorus-dissolving bacteria. Described adsorbent comprises corn stalk hydrothermal biochar, binder, protective agent, and described binder is pullulan, and described protective agent is edible soybean oil, and its mass ratio is 5:2: 1. Mechanically crush the corn stalks, pass through a 50-mesh sieve, put them into a hydrothermal reaction kettle, add distilled water to the hydrothermal reaction kettle, wherein the volume ratio of the corn stalk crushed matter to the distilled water is listed as 1:6, stir evenly, and seal; The hydrothermal reaction kettle was placed in an oven at 200°C for 18 hours, and the...

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Abstract

The invention discloses a preparation method and application of a microbial agent capable of increasing the utilization rate of phosphorus in soil. The preparation method comprises the following steps: (1) obtaining phosphate-solubilizing bacterial strains, (2) activating the phosphate-solubilizing bacteria; (3) performing enlarging cultivation on the phosphate-solubilizing bacteria; (4) preparing an adsorbent; (5) preparing phosphate-solubilizing bacteria inoculums. The microbial agent capable of increasing the utilization rate of the phosphorus in the soil has important significance in effectively degrading insoluble phosphorus in the soil, converting into effective phosphorus which can be absorbed by plants, increasing the utilization rate of the phosphorus in the soil, saving phosphorus fertilizer resource in agricultural production in China, increasing the yield of grain and protecting the ecological environment of farmlands.

Description

technical field [0001] The invention relates to the field of microorganisms, the preparation of microbial bacterial agents and their application fields, in particular to a preparation method and application of microbial bacterial agents for improving the utilization rate of soil phosphorus. Background technique [0002] Phosphorus is the main nutrient element for plant growth. It mainly exists in the form of insoluble minerals in the soil. Therefore, the utilization rate of phosphorus in the soil by plants is very low, which seriously affects the growth of crops, especially the yield of crops. However, due to the existence of phosphorus fixation, soil phosphorus deficiency is widespread in the world. The insufficient supply of phosphorus is one of the most important limiting factors in the world's agricultural production. From the perspective of our country, 74% of the country's cultivated land is deficient in phosphorus. There are two ways to solve this problem: one is to i...

Claims

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Application Information

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IPC IPC(8): C12N1/00C12N11/14C12N11/02C05G3/04C05G3/00C05G3/80
CPCC05G3/00C12N1/00C12N11/02C12N11/14C05G3/80
Inventor 胡大苇
Owner 广州富生源环保工程有限公司
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