【摘 要】
：
近年来,联合固氮研究的飞速发展引起全世界有关学者的普遍关注。许多研究者对联合固氮菌的种群、培养条件、基因类型、固氮力、宿主专一性以及禾谷类作物的接种反应进
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近年来,联合固氮研究的飞速发展引起全世界有关学者的普遍关注。许多研究者对联合固氮菌的种群、培养条件、基因类型、固氮力、宿主专一性以及禾谷类作物的接种反应进
In recent years, the rapid development of joint nitrogen fixation has aroused the widespread concern of scholars around the world. Many investigators have investigated the population, culture conditions, genotypes, nitrogen fixation capacity, host specificity, and inoculation responses of cereal crops to azotobacter
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