(1.Soil and Fertilizer Institute , Heilongjiang Academy of Agricultural Sciences, Harbin 150086,2 .Soybean Institute , Heilongj iang Academy of Agricultural Sciences , Harbin 150086)
T he optimum fertilization, namely , applying a little amount of nitrogen, more potassiuphosphor inoculating a lump germ on soybean could increase yield and oil content .Right a little amount ofnitrogen could increase soybean yield 4.2%-6.1 %and oil content 0 .08%-0 .25%.Potassium and phos-phor fertilization can increase soybean yield 3.3%-7%and oil content 0.27%-0.47%.The seed-dress-ing for drought -resistance and foliar fertilizer had a little influence on soybean yield and oil content .Ap-plying optimum fertilization , seed-dressing medicament and foliar fertilizer on soybean could increase soy-bean yield 11.3%-15 .6%and oil content 0.44%-0.63 %.