Abstract:The integrative effect of 16 controllable factors of soybean fields on diseases and insect pests, natural enemies and soybean yield was studied from 1993 to 1996. According to the criterion of good control to the pests, increase of soybean yield and protection of natural enemies, the 16 controllable factors were evaluated synthetically and the optimum system control to the diseases and insect pests of sunmer soybean was suggested as follows: soybean sown in the same maize hole (4 to 1) or soybean interplant...