ＰＧＰＲ在植物土传病害生物防治中的应用（下）南京农业大学植保系郭坚华，李师默，祁红英２．筛选方法由于大田测试需太多的时间和费用，所以较好的方法是选择有潜在大田效果的菌株，具有生防能力的根围细菌少于根围细菌总数１０％。首先从用以防治的同样的环境中或植株... Application of PGPR in Biological Control of Plant-borne Soil Diseases (Part two) Plant Protection Department, Nanjing Agricultural University Guo Jianhua, Li Shimer, Qi Hongying 2. Screening method Due to the time and cost of field testing, it is better to choose a strain with potential field effect and less than 10% of the total number of rhizobacteria with biocontrol ability. First of all from the same environment or plant used to control ...