Phosphorus- and potassium-solubilizing microorganism fertilizer and preparation method and application thereof

A technology of microbial fertilizer and microbial agent, which is applied in the field of microbial fertilizer for decomposing phosphorus and potassium and its preparation, can solve problems such as the imbalance of nutrient elements, the decrease of available potassium content, and the impact on sustainable agricultural development, so as to achieve reasonable matching and spore The effect of improving the physical and chemical properties of soil is high

Inactive Publication Date: 2015-12-30
HUNAN TAIGU BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the content of available potassium in the soil continued to decline, resulting in an imbalance in the proportion of nutrients in the soil, which seriously affected the sustainable development of agriculture.

Method used

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  • Phosphorus- and potassium-solubilizing microorganism fertilizer and preparation method and application thereof
  • Phosphorus- and potassium-solubilizing microorganism fertilizer and preparation method and application thereof
  • Phosphorus- and potassium-solubilizing microorganism fertilizer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1 Phosphorus-dissolving and potassium-dissolving microbial fertilizer and preparation method thereof

[0058] The phosphorus-dissolving and potassium-dissolving microbial fertilizer contains the following raw materials in parts by weight:

[0059] 15 parts of compound bacterial agent;

[0060] 80 copies of carrier;

[0061] 5 parts of bentonite.

[0062] The total content of effective viable bacteria in the composite bacterial agent is 1.2 billion cfu / g, and the composition is as follows:

[0063]

[0064] The preparation method of the above-mentioned phosphorus-dissolving and potassium-dissolving microbial fertilizer comprises the steps of:

[0065] (1) Preparation of composite bacterial agent

[0066] I. the preparation of bacterial spore powder:

[0067] a. Incline culture: Inoculate the original strains of Bacillus subtilis, Bacillus megaterium and Bacillus jelly-like on the slant medium under sterile conditions, and cultivate them at 30±2°C for 2...

Embodiment 2

[0085] Embodiment 2 Phosphorus-dissolving and potassium-dissolving microbial fertilizer and preparation method thereof

[0086] The phosphorus-dissolving and potassium-dissolving microbial fertilizer contains the following raw materials in parts by weight:

[0087] 5 parts of compound bacterial agent;

[0088] 90 copies of carrier;

[0089] 5 parts of bentonite.

[0090] The total content of effective viable bacteria in the composite bacterial agent is ≧550 million cfu / g, and the composition is as follows:

[0091]

[0092] All the other are with embodiment 1.

Embodiment 3

[0093] Embodiment 3 Phosphorus-dissolving and potassium-dissolving microbial fertilizer and preparation method thereof

[0094] The phosphorus-dissolving and potassium-dissolving microbial fertilizer contains the following raw materials in parts by weight:

[0095] 25 parts of compound bacterial agent;

[0096] 65 copies of carrier;

[0097] 10 parts of bentonite.

[0098] The total content of effective viable bacteria in the composite bacterial agent is ≧2.2 billion cfu / g, and the composition is as follows:

[0099]

[0100] All the other are with embodiment 1.

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Abstract

The invention provides phosphorus- and potassium-solubilizing microorganism fertilizer. The phosphorus- and potassium-solubilizing microorganism fertilizer is composed of, by weight, 5-25 parts of complex inoculant, 65-90 parts of carrier and 5-10 parts of bentonite. The complex inoculant contains Bacillus subtilis, Bacillus megatherium, Bacillus mucilaginosus and Aspergillus niger, and the carrier is powder formed by rapeseed cake, soybean meal cake and sesame cake through fermentation and decomposition through microbial inoculant for fermentation and drying and screening. Slightly soluble or insoluble phosphorus and potassium substances in soil can be converted into quick-action phosphorus and potassium which can be absorbed and utilized by crops, absorption, to other nutrition elements, of the crops is promoted, crop yield is increased, crop quality is improved, environment pollution is reduced, physiochemical property of soil is improved, soil fertility is improved, and production cost is lowered.

Description

technical field [0001] The invention relates to the field of biological fertilizers, in particular to a microbial fertilizer for decomposing phosphorus and potassium, a preparation method and application thereof. Background technique [0002] Although the reserves of phosphorus and potassium minerals in the soil of our country are very rich, about 400-200 mg of total phosphorus per kilogram of soil, and about 1500-4500 kilograms of potassium per mu in a 20cm plow layer, only 5% of the phosphorus that can be directly used by crops , and most of potassium exists in feldspar and mica primary minerals, which cannot be directly used by crops. At present, 74% of the cultivated land in my country is deficient in phosphorus, and about 60% of the cultivated land is deficient in potassium. 95% of the phosphorus in the soil is ineffective form, and it is difficult for crops to directly absorb and utilize it. Among them, the insoluble organic phosphorus accounts for about 20% to 50% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCY02W30/40
Inventor 罗志威谭石勇丰来王蕾易子霆徐滔明周芳茹
Owner HUNAN TAIGU BIOTECH
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