三年来,为了鉴定引进新菌株的固氮效能和适应条件,以便筛选出适于我省的高效大豆根瘤菌株,我们进行了盆栽和田间小区试验,现将试验结果总结如下。一、试验材料和方法供试土壤为沈阳地区草甸土、棕黄土、朝阳褐色土和本院底层河沙(1978年河沙未灭菌,1979年则经过局部灭菌)。供试大豆品种为铁丰18。试验分别在砂培和田间小区进行。 Three years, in order to identify the introduction of new strains of nitrogen fixation efficiency and adaptation conditions, in order to filter out the efficient soybean rhizobium strains suitable for our province, we conducted a pot and field plot test, the test results are summarized below. First, the test materials and methods for the test soil for the test of Shenyang meadow soil, brown loess, Chaoyang brown soil and the bottom of the hospital river sand (in 1978 sand sterilization, in 1979, after partial sterilization). The test varieties of soybean iron Fung 18. Experiments were carried out in sand culture and field plot.