Straw organic decomposition agent and preparation method thereof

Abstract

A straw organic decomposition agent is prepared from bacillus subtilis, brewer's yeast and aspergillus oryzae, the content of bacillus subtilis is larger than or equal to 15 billion cfu / g, the content of the brewer's yeast is larger than or equal to 20 billion cfu / g, the content of aspergillus oryzae is larger than or equal to 500 million cfu / g, and the number of effective living bacteria in the decomposition agent is larger than or equal to 265 million per gram. In the straw organic decomposition agent, only three original strains exist, bacteria, fungus living bacteria and an enzymic preparation are compounded, multiple components achieve a synergistic effect in the decomposition process, a cellulase preparation is cultured by mixing bacillus subtilis, brewer's yeast, aspergillus oryzae and the like, multiple kinds of cellulase systems are generated, good applicability is achieved, lignin ingredients in straw can be damaged fast, cellulose and hemicellulose in organic materials are exposed, and the decomposition time of the straw is shortened. A method for screening strains is efficient and practical, the production and fermentation process is simple, the production period is short, the number of the living bacteria and the enzyme activity level are high and stable, the use effect of the prepared decomposition agent is superior to that of an existing product, and wide industrialization prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to an organic material decomposing agent, in particular to an organic straw decomposing agent and a preparation method thereof. Background technique [0002] my country is a traditional agricultural country. According to data, hundreds of millions of tons of organic materials are produced every year, accounting for 20% to 30% of the world's total, of which wheat straw accounts for 21%, corn straw accounts for 35%, and rice straw accounts for 21%. 19%. Organic materials are by-products of agricultural production and also a valuable biomass resource. How to make good use of crop waste resources is an urgent problem to be solved. Returning organic materials to the field is an ideal way to treat crop waste. It can not only maintain and improve soil fertility, maintain the balance of soil organic matter, but also improve the growth environment of crops and the physical and...

AI Technical Summary

Problems solved by technology

The solution is to simply mix five kinds of bacteria. After the five kinds of bacteria are simply mixed, the decomposing agent is made. Although each kind of bacteria has the effect of degrading fibers, they cannot cooperate with each other. The culture environment and mechanism of action are different. The five species belong to the genus Trichoderma and Aspergillus. Bacillus subtilis and Trichoderma konii synthesize cellulase by themselves. Bacillus licheniformis can inhibit miscellaneous bacteria. Phaneroderma destroys the organization and structure of the chromophore. Practice has proved that the effect of mixing these strains is that 1 plus 1 is less than 2. Because the strains resist each other, the number of viable bacteria and the level of enzyme activity are unstable. The effect of using decomposing agent becomes worse, and the cultivation of too many strains requires a variety of media, not only the process is cumbersome, the process conditions are high, the production cycle is long, and it is easy to make mistakes, which brings many problems to the actual production and application

[0006] At present, the cost of organic material decomposing agents is high, and the decomposing effect is poor, which still cannot meet the requirements of direct returning straw to the field. It is necessary to develop more efficient organic material decomposing agents to meet the needs of direct straw returning to the field.

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