论文部分内容阅读
土壤中的根瘤菌与豆类植物共生形成了共生固氮体系,为大豆生长发育提供了一部分氮素营养。根瘤的形成与固氮强度又决定于土壤中根瘤细菌的有无、数量和结瘤固氮活力。为此,人们企图通过人工接种技术为豆科植物引进大量高活力的根瘤细菌,提高结
Rhizobium in soil symbiosis with legumes to form a symbiotic nitrogen fixation system for soybean growth and development to provide part of the nitrogen nutrition. The formation of nodules and nitrogen fixation strength is determined by the presence and amount of nodule bacteria in the soil and the nodulation and nitrogen fixation activity. To this end, people are trying to use artificial inoculation techniques for the introduction of legumes a large number of high-activity root nodule bacteria, improve knot