A.chroococcum是一种自生固N菌,能产生植物生长调节物质和抗菌物质,能固氮和分泌氨,其中某些特性有利于将该菌作为水稻、油料作物、高粱、棉花、小麦、蔬菜等作物的“生物肥料”。像小麦等的高产作物品种,其产量潜力只有在氮素和其它元素供应充足时才能得到充分发挥。因商品肥料价格昂贵,需节约使用,而接种自生固氮菌能为节约用肥作出重要贡献。本 A. chroococcum is a naturally-occurring N-producing bacterium that produces plant growth regulators and antimicrobial substances that can sequester nitrogen and secrete ammonia, some of which are good for the use of the bacteria as rice, oil crops, sorghum, cotton, wheat, vegetables, etc. Crops “biological fertilizer.” High-yielding crop varieties such as wheat yield potential only when nitrogen and other elements are abundantly supplied. Due to the high cost of commodity fertilizers, it is necessary to save the use of nitrogen fertilizer. Inoculating autotrophic azotobacteria can make an important contribution to saving fertilizer. this