当代生物技术的发展,促进了生物肥的创新,其内容涉及菌剂的作用机制、新品种的筛选及其一剂型的多元多功能化。如品种从单一的固氮或解磷型发展而成二元双功能的固氮解磷型,甚或三元多功能的固氮、解磷、解钾型。新品种固氮生物钾即是其例。本项目在农业部统一布置下,对生物肥(联合固氮菌、生物钾肥)在北方粳稻上的应用技术进行了三年的试验开发研究,取得了较为完善的成果和明显的社会经济 The development of modern biotechnology has promoted the innovation of biological fertilizers, and its contents are related to the mechanism of action of antibacterial agents, the screening of new varieties and the multi-functionalization of one dosage form. Such as species from a single nitrogen or phosphorus-type development from the dual dual-function of the nitrogen-phosphorus solution, or even ternary multi-functional nitrogen, phosphorus, potassium-type. New varieties of nitrogen fixation is the case of potassium. Under the unified arrangement of the Ministry of Agriculture, this project has carried out three years of experimental research and development on the application technologies of biological fertilizers (combined azotobacteria and bio-potash fertilizer) on northern japonica rice and obtained relatively perfect achievements and obvious socio-economic