过去采用三级扩大法土法生产细菌农药,由于生产工艺较复杂,产品质量往往不稳定,成本较高,因而影响了细菌农药土法生产的普及与推广。去年,我们利用自己生产的优等三级原料(工业粉剂也可)作菌种,直接采用一步扩大法生产细菌农药。一步扩大法生产 The past three to expand the law of indigenous production of bacteria and pesticides, due to the complexity of the production process, product quality is often unstable and costly, thus affecting the popularity of bacterial pesticide production and promotion. Last year, we used our own excellent third-grade raw materials (industrial powder can also be) as bacteria species, directly using one-step expansion of the production of bacterial pesticides. One step expansion of production