Use of Nitrogen-fixing Bacteria Biofertilizer in Crop Production
Nitrogen-fixing bacteria can increase crop yield and play an important role in agricultural production. At present, the most widely used bacteria are rhizobia, and biological nitrogen fixation is getting more and more attention. It will develop in a deeper and further direction. At present, the main strains used to produce this kind of microbial fertilizer are Azotobacter chroococum ; Beijerinckia derxii, Klebsiella SPP., Enterobacter SPP., and Alcaligenes SPP. Mechanism of Action Azotobacter Chroococcum Nitrogen fixation (nitrogen fixation) is the reduction of nitrogen molecules in the process of ammonia and other nitrogen compounds. In nature, nitrogen (N2) is fixed in two ways: one is abiotic nitrogen fixation, that is, nitrogen fixation through lightning, high-temperature discharge, etc., so that very few nitrides are formed; The second is the biological nitrogen fixation, that is, the reduction of molecular nitrogen into ammonia in the biological body. More than 9