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由当地分离纯化并回接有效而获得的４株快生型大豆根瘤菌株，通过形态、生理鉴定，表明与慢生型菌株有明显差异；在菌株与大豆品种亲和性的盆栽试验中，其中Ａ０３４菌株与“徐州四号”、Ａ０３２与“东解选”大豆品种间具有良好共生效应；其株高、茎叶干重及含氮量、株瘤数与瘤重、及固氮酶活性等，均明显高于不接种对照；固氮率分别提高为４８．１％与４４．５％；
The results of morphological and physiological identification showed that there were significant differences among the 4 strains of fast-growing soybean rhizobium isolated and purified from the local accession and backwashing, and the slow-growing ones. In the pot experiment with compatibility of the strains and soybean varieties, The strain A034 had good symbiosis with “Xuzhou No.4”, A032 and “Dong Jie Xuan” soybean varieties. The plant height, stem and leaf dry weight and nitrogen content, the number of neoplasms and tumor weight, and nitrogenase activity, Were significantly higher than the non-inoculated control; nitrogen fixation rate increased 48.1% and 44.5%;