Paddy biofertilizer, preparation method thereof and bacillus subtilis

Abstract

The invention relates to the technical field of agriculture, and discloses a paddy biofertilizer, a preparation method thereof and bacillus subtilis. The preparation method comprises the following steps of: adding bacillus subtilis with the preservation number of CGMCC (China General Microbiological Culture Collection Center) No.6190 into a solid material, fermenting until the quantity of bacillus subtilis is at least 1.2*10<10> / g, the spore percentage reaches at least 60% and the impurity microorganism percentage is less than 20%, and then uniformly mixing the fermented solid material with humic acid, agricultural rare earth, aged and fermented poultry and livestock feces, silicon-calcium-magnesium fertilizer and amino acid fertilizer so as to obtain the paddy biofertilizer. According to the invention, the mutagenic bacillus subtilis is mixed with chicken manure and other aged and fermented organic matters, humic acid, silicon-calcium-magnesium fertilizer, agricultural rare earth, amino acid fertilizer and the other substances to form the compound paddy microbe manure, so that the number of tillers of the paddy is increased, the tillering stage of the paddy is advanced, the root weight of the paddy is increased, the leaf color of the paddy is enhanced, the water temperature is raised, and the growth of the paddy under the cold stress is promoted.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a rice biological fertilizer, a preparation method thereof and bacillus subtilis. Background technique [0002] Black soil refers to a special soil with an average organic matter content between 3% and 10%, which is especially conducive to the growth of rice, wheat, soybeans, corn and other crops. Because the black soil is distributed in the cold temperate zone with four distinct seasons, the vegetation is lush, and the change of cold and hot seasons causes a large number of dead branches and leaves to rot and decompose, forming a thick and fertile black soil layer. The name "cold black soil" comes from this. . At present, the products of the cold black soil have become the representative of the best quality of green organic food in the world. [0003] However, low temperature and cold damage in cold regions is a serious natural disaster in agricultural production, involvin...

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Problems solved by technology

[0004] There are many special fertilizers for rice on the market, but most of them are inorganic compound fertilizers or organic-inorganic compound fertilizers, that is, fertilizers that produce nitrogen, phosphorus, potassium or nitrogen, phosphorus, potassium and organic matter in a certain ratio. Fertilizers only provide the nitrogen, phosphorus, and potassium nutrients needed by rice, and they cannot make rice grow well in low temperature environments, such as increasing the number of tillers, advancing the tillering period, increasing root weight, deepening leaf color, and increasing rice water temperature, etc.

[0005] The Chinese patent application No. 200810137386.5 discloses "a new type of special microbial organic fertilizer production process for rice", which mainly improves the activity of microorganisms by improving the carrier for adsorbing microorganisms, so that microorganisms can efficiently decompose nitrogen, phosphorus and potassium for rice to absorb. However, it is not conducive to the growth of rice under cold stress, and there is no relevant experimental data to prove

[0006] Chinese patent application No. 201010595301.5 discloses "a special microbial waste material rich in silicon and selenium for rice and its preparation method", which mainly adds medium and trace elements on the basis of biological fertilizers, so that this fertilizer has a higher efficacy. improved, but could not promote rice to show good growth under cold stress

[0007] At present, the special fertilizer for rice with cold-resistant effect on the market is rice cold-resistant mycelium protein fertilizer. The application number is 200910072486.9. This fertilizer uses corn steep liquor, corn starch and glucose, and inoculates Penicillium for fermentation. The fermentation is divided into two times. A total of 8-13 days, the protein silk needs to be dried and crushed, which makes the production cycle of this fertilizer long, the input of raw materials is high, and the cost of fertilizer is too high

Although the application documents state that it can improve the cold resistance of rice, the fertilizer only contains nitrogen, phosphorus, and potassium nutrients and lacks other beneficial substances needed for rice growth. Promoting good growth of rice under stress

In addition, the mycelium protein of this fertilizer is acidic, and it is mainly used for alkaline soil, and the scope of application is limited