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Composite microbial agent for direct decomposition of crop straws returned to field and preparation method thereof

A technology of compound microorganisms and crop straws, applied in the field of microorganisms, can solve the problems of slow decomposition and difficulty in returning to the field

Active Publication Date: 2012-11-21
武汉合缘绿色生物股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Straw decomposing agent can quickly decompose crop straw, and can completely decompose field straw in 7-10 days, which solves the problems of slow maturity and difficulty in returning crop straw to the field, increases the content of soil organic matter, and plays a role in "using land to cultivate land" It has solved the long-standing dilemma of government encouragement and farmers' slack on the issue of returning straw to the field

Method used

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  • Composite microbial agent for direct decomposition of crop straws returned to field and preparation method thereof
  • Composite microbial agent for direct decomposition of crop straws returned to field and preparation method thereof
  • Composite microbial agent for direct decomposition of crop straws returned to field and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] A compound microbial preparation for quickly decomposing crop stalks, which is prepared from the following raw materials in weight percentage:

[0086] Raw material % Raw material %

[0087] Bacillus subtilis 29%; Saccharomyces cerevisiae 12%;

[0088] Aspergillus niger 11%; Trichoderma pseudoconii 20%;

[0089] Phanerochaete xanthophyte 18%; Streptomyces albicans 10%.

[0090] The Bacillus subtilis, Saccharomyces cerevisiae, Aspergillus niger, Trichoderma pseudoconii, Phanerochaete xanthophyllum, and Streptomyces albicans were all purchased from China Agricultural Microorganism Culture Collection and Management Center.

[0091] A preparation method for a compound microbial preparation for rapidly decomposing crop stalks, the steps of which are:

[0092] (1), separate expansion culture of various strains:

[0093] A. Cultivation of Bacillus subtilis: inoculate the test tube species of Bacillus subtilis on beef extract peptone medium (refer to microbiology test textb...

test example 1

[0104] The test site is in the second group of Jindang Village, Muzi Township, Dajin Town, Wuxue City. The soil used for the test is paddy soil developed from fluvo-aquic soil, and the previous stubble is early rice. In the rice-rice mode, after the early rice is harvested, all the straw is returned to the field, and no-tillage is implemented. 4 treatments were set up in the experiment, and the area of ​​the plot was 20m 2 (4m×5m), ridges were built between plots, and the experiment was repeated 4 times. The plots were treated as follows: Treatment 1: Return full amount of straw to field + straw decomposing agent; Treatment 2: Return full amount of straw to field + equal amount of water; Treatment 3: Full amount Straw returning; treatment 4: no straw returning.

[0105] Analysis of test results

[0106] Color change of straw: On the third day after decomposing agent was applied, the color of the straw without decomposing agent basically remained unchanged, and the surface of t...

test example 2

[0109] The experimental field is located in the paddy field of Wuji Po Fu Zuyou farmers of Wuji Village Committee, Nada Town, Danzhou City. The geographical location of the field is: east diameter 109 degrees 3 minutes 39.03 seconds; north latitude 19 degrees 38 minutes 31.01 seconds; height 94 meters. The previous stubble was the early paddy field. The soil type is purple mud field. The soil parent material is purple sand shale. The physical and chemical properties of the 0-20cm soil before transplanting are as follows: organic matter 18.75g / kg; total nitrogen 1.01g / kg; available nitrogen 53.00mg / kg; available phosphorus 4.22mg / kg; available potassium 104mg / kg; pH value 5.8.

[0110] Test fertilizer: rice straw: 400 kg / mu; straw decomposing agent 2 kg / mu; large particle urea 20 kg / mu (produced by CNOOC Chemical Co., Ltd.); superphosphate (produced in Zhanjiang) 25 kg / mu; potassium chloride ( Canada) 15 kg / mu.

[0111] (1) The experimental design adopts randomized block de...

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Abstract

The invention discloses a composite microbial agent for direct decomposition of crop straws returned to field and a preparation method thereof. The agent bacillus comprises certain weight percent of subtilis, saccharomyces cerevisiae, aspergillus niger, trichoderma psudodoningii, Phanereochaete chrysosporium and Streptomycete albus, and is prepared by the following steps: A, individually culturing all the above-metioned bacteria with solution culturing first and solid culturing next; B, mixing all the microbial inocula according to a certain mass ratio under stirring so as to obtain the composite microbial agent. The invention has the advantages of reasonable formula, convenient utilization, easy implementation, simple operation and fast straw decomposition. With the utilization of the invention, the problems of slow decomposition and difficult returning of the crop straws are solved, organic content of soil is increased, and therefore the nurturing of land is combined with the use ofland, and the situation having existed for a long time that the government encourages straw returning while farmers are unwilling to carry out straw returning is improved.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and more specifically relates to a compound microbial preparation for directly returning decomposed crop stalks to the field, and also relates to a preparation method of the biological preparation. Decomposing and returning to the field, the decomposing straw is fast, the method is easy to operate, and the operation is simple. Background technique [0002] With the change of rural energy structure, crop stalks are no longer the main living energy of farmers. Farmers burn the stalks in the field for convenience, resulting in the scene of "every village ignites and smoke everywhere" in the countryside every harvest season. Straw incineration has four major disadvantages: first, waste of resources, resulting in a large amount of organic matter that cannot be returned to the field; second, serious environmental pollution; third, frequent fires and traffic accidents; fourth, damage to the mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12N1/18C12N1/14C05F11/08C12R1/125C12R1/865C12R1/685C12R1/885C12R1/465C12R1/645
Inventor 徐维烈杨涛陈玉峰袁庆丰胡定志
Owner 武汉合缘绿色生物股份有限公司
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