柽麻(Crotalaria Juncea L·)是我省六十年代引进的麦田复播绿肥,生长快,肥效高,生长50多天鲜草产量一般可达2,500多斤。但自然结瘤植株只占40％。针对这种情况,1977年我们曾分离过一株77-1菌株,接种柽麻增产鲜草为16.5％。为了进一步选育适应我省气候、土质特点的高效菌株,1978年在柽麻复播田内采瘤分离出8-2菌株。通过盆栽、小区试验、大田示范,接种 Crotalaria Juncea L. is a compound green manure introduced from the 1960s in our province. It grows fast and has high fertilizer efficiency. The yield of fresh grass is generally over 2,500 kilos for more than 50 days of growth. But natural nodulation plants account for only 40%. In response to this situation, in 1977 we have isolated a strain of 77-1, sesame seed production of fresh grass increased 16.5%. In order to further select suitable strains that adapt to the climatic and soil characteristics of our province, 8-2 strains were isolated from the tumor in the co-sowing field in 1978. Through pots, plots, field demonstration, vaccination