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固氮菌肥是利用具有固氮作用的活性菌种生产的一种微生物肥料,能固定空气中的气态氮并将其转化为可供作物吸收利用的氨态氮,还能分泌维生素类和生长素类物质刺激作物生长,对改善土壤结构、增强土壤肥力、促进作物生长、提高作物品质具有重要作用。1固氮菌肥的种类固氮菌肥可分
Azotobacter is a kind of microbial fertilizer which is produced by active bacteria with nitrogen fixation. It can fix the gaseous nitrogen in the air and transform it into ammonia nitrogen which can be absorbed and used by crops, and can also secrete vitamins and auxins Material to stimulate crop growth, to improve the soil structure, enhance soil fertility, promote crop growth, improve crop quality has an important role. Azotobacter A nitrogenous bacteria can be divided