论文部分内容阅读
近些年来,国内外对生物固氮的研究报道很多。生物固氮不但应用于大豆,而且应用于小麦、水稻、玉米、牧草等。我省对根瘤菌的生产和应用很重视,发展很快。全省根瘤菌肥施用面积“七五”期间已发展到500万亩。根据调查,大豆施用根瘤菌肥一般增产5～10%。随着根瘤菌肥施用面积的推广和扩大,对根瘤菌的施肥方法,施肥期和适宜的土壤环境,许多科学工作者都在探讨、研究并积累了许多经验。对土著大豆根瘤菌在自然条件下和大豆共生固氮量的研究,国外报道很多,国内近年也有报道。本文所要报道的,是土著根瘤菌对不同品种的大豆和不同的根瘤菌株的共生固氮效
In recent years, there are many reports on biological nitrogen fixation at home and abroad. Biological nitrogen fixation is not only applied to soybeans, but also used in wheat, rice, corn, pasture and so on. My province attaches great importance to the production and application of rhizobia, the rapid development. The province of nodule bacteria fertilizer application area “75 ” period has been developed to 5000000 mus. According to the survey, soybean rhizobium fertilizer generally yield 5 to 10%. With the popularization and expansion of rhizobium fertilizer application area, the application methods of Rhizobia, the fertilization period and the suitable soil environment, many scientists are exploring, studying and accumulating many experiences. Aboriginal soybean rhizobia in natural conditions and soybean symbiotic nitrogen fixation, many foreign reports, the domestic also reported in recent years. What this article wants to report is the symbiotic nitrogen fixation effect of indigenous rhizobium on different varieties of soybean and different rhizobia strains