在盐碱地和盆栽控盐条件下 ,研究了联合固氮工程菌对水稻耐盐性的诱导效应。结果表明 ,在盐渍条件下 ,联合固氮工程菌能减轻水稻植株的盐害 ,增强水稻叶片超氧化物歧化酶活性 ,减少丙二醛的生成 ,能有效提高水稻叶片的光合效率和水稻产量。为联合固氮菌的合理使用及其对水稻耐盐性的改善提供理论依据 In saline-alkali land and potted salt control conditions, the effects of combined nitrogen fixation engineering bacteria on salt tolerance of rice were studied. The results showed that the combination of nitrogen-fixing engineering bacteria could reduce the salt damage of rice plants, enhance the activity of superoxide dismutase (SOD) and reduce the formation of malondialdehyde (MDA) in rice leaves under salt stress, and improve the photosynthetic efficiency and rice yield of rice leaves. It provided a theoretical basis for the rational use of combined azotobacter and its improvement on salt tolerance of rice