“富农牌”高效生物复合肥在作物上的应用高效生物复合肥是北京大学生物固氮科研组经多年攻关研制成功的一种新型高效农作物增产剂。它由三种固氮菌，三种激素菌和植物所需的多种常量、微量元素科学组配而成，该产品已获国家科技成果奖，并在全国多个省市推广．该种生物复... “Phuong-card” efficient biological fertilizer application in crops High-efficiency biological compound fertilizer is Peking University biological nitrogen fixation research group after years of research successfully developed a new type of efficient crop yield. It consists of three kinds of nitrogen-fixing bacteria, three kinds of hormones and plants required a variety of constants, trace elements science teamwork, the product has won the National Science and Technology Achievement Award, and in many provinces and cities nationwide promotion. This kind of biological complex ...