Biological fertilizer production technique for sufficiently utilizing arable layer nitrogen in order to eliminate nitrogen pollution

Abstract

The invention relates to a biological fertilizer production technique for sufficiently utilizing arable layer nitrogen in order to eliminate nitrogen pollution, which relates to a production technique of a biological fertilizer, in particular to a production method of a biological fertilizer compounded with nitrobacteria, azotobacter and the like. The technique adopts the following technical processes: (1) using the method known by professionals in the industry to screen bacteria such as azotobacter, photosynthetic bacteria, algae, legume bacteria, nitrosobacteria, nitrobacteria, trichoderma, silicate bacteria, bacilli and denitrifying bacteriap; (2) carrying out experiments on the effects of the screened strains; (3) using the known method to respectively propagate each strain step by step according to the characteristics of the strain; (4) selecting different carrier materials for adsorption or drying according to the characteristics and purposes of the strains; (5) finally carrying out inspection and packaging. The invention is applicable to large-area mechanical spreading operation as well as manual spreading operation on crofts.

Description

Technical field: [0001] The present invention relates to a production process of biological fertilizer, in particular to a production process of biological fertilizer composed of functional bacteria such as nitrogen-fixing bacteria, nitrosifying bacteria, nitrifying bacteria, Trichoderma, silicate bacteria, bacillus, denitrifying bacteria, etc. Production methods and usage methods according to target management requirements and geological and geographical conditions. Background technique: [0002] At present, the total annual consumption of chemical fertilizers in China is 140 million tons (equivalent to 42.4 million tons of pure nitrogen nutrients. Due to the long-term and large-scale use of chemical fertilizers, especially the unscientific, unreasonable and blind use, coupled with the backwardness of related technologies, the use structure is unreasonable. , resulting in a large loss of chemical fertilizer and a very low utilization rate. Taking nitrogen fertilizer as an ex...

AI Technical Summary

Problems solved by technology

For this reason, provide a kind of biological fertilizer production process that makes full use of plow layer nitrogen to eliminate nitrogen pollution, by using the biological fertilizer produced by this production process, mainly solve the ammonium nitrogen (NH 3 -N) and reduced to gaseous nitrogen NO, N by denitrification 2 O and N 2 The problem of escape loss, as well as the problem of nitrate nitrogen oxidized by nitrifying bacteria to form nitrate nitrogen, which leaks downward after being dissolved in water, causes eutrophication pollution of groundwater and rivers and lakes. By greatly reducing unnecessary nitrogen loss, it can be greatly improved. The utilization rate of nitrogen fertilizers reduces the amount of nitrogen fertilizers used, and at the same time decomposes the phosphorus and potassium elements that are fixed in the soil and cannot be absorbed by crops for crops to absorb, thereby ensuring the supply of NPK nutrients as a whole and greatly reducing the amount of chemical fertilizers used. Solve the problems existing in the background technology