【摘要】 作者从收集到的大量快生型大豆根瘤菌中选择固氮效果较高的5株菌株,分别接种在跃进5号、山宁2号、鲁豆4号三个夏大豆品种上进行沙培和田间试验。结果表明,快生型大豆根瘤菌的竟争力和结瘤能力比慢生型强;与其共生的大豆植株干物重和蛋白质含量,快生型除15067较高外,其余和慢生型接近;接种快生型菌的大豆增产18.2～31.4％,接种慢生型菌增产7.9～12.8％。更多还原

【Abstract】 5 Strains with effective nitrogen,fixation selected from massive fast-growing Soybean Rhizobia were respectively inoculated to Soybean varieties Yue-jin 5,Shanning 2 and Ludou 4 grown in Sand Culture and the field.The results showed that when compared to slow-growing strains,competition and nodulation abilities of fast-growing strains were higher,dry weight and protein content of soybean plants being symbiotic with fast-growing strain 15067 were higher and that with other fast-growing strains were close,When compared to check,yield of soybean inoculated with fast-growing strains increased by 18.2-31.4%,yield of soybean increased by 18.2-31.4%,yield of soybean inoculated with slow-growing strains increase by 7.9-12.8%.更多还原