The experiments on symbiotic and broad spectrum N fixing bacteria, called G fertilizer ( GF ) applying to rice grown in red yellow soil was conducted to determine some physiological traits, senescence, soil fertility and rice quality as well as rice yield for different treatments. 将共生性广谱生物固氮菌剂G肥应用于红黄壤水稻上,对水稻的一些生理活性、水稻的衰老、土壤肥力变化、稻米品质和产量进行了研究。