大豆有固氮作用，能肥田养地。新田地根瘤菌少，固定的氮不能满足作物高产需要。为了在新田地上更好地进行大豆生产，我们进行了如下的试验研究。１试验设计试验采用随机区组排列，３次重复，设以下７个处理：（１）对照，不施肥（ＣＫ）；（２）每公顷施尿素６６ｋｇ作基... Soybean nitrogen fixation, fertile fields. The new field rhizobium less fixed nitrogen can not meet the needs of high yield crops. In order to make better soybean production in the new field, we conducted the following experimental study. 1 experimental design experiments using random block arrangement, 3 times repeated, set the following seven treatments: (1) control, no fertilization (CK);