Wang, YuzhengMa, LunWang, JizangRen, XizhouZhu, Wanliang2017-06-012017-06-01http://hdl.handle.net/2097/35650The integrated effect of 15 controllable factors of soybean fields on diseases and insect pests, natural enemies and soybean yield was studied from 1993 to 1995. 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 disease and insect pests of summer soybeans were suggested as follows: soybean sown in the same maize hole (4 to 1) or soybeans interplanted in the maize field (9 to 2 rows), cultivar the variety ludou 4, sowing time on about 10 June, dressing seed with trace element fertilizer at 1800g/hm2 , dosages of fertilizer N,P2O5 ,K2O and Organic manure application at 45kg/hm2 , 60kg/hm2 , 150kg/hm2 and 22500kg/hm2 respectively. Mixture dressing seeds with phorate and carbendazim 0.36% and 0.1% of seed weight respectively, control soybean aphid with pirimicarb at 60g/hm2 , control soil insect with isofenphos-methyl at 67.5g/hm2 , and control leaf-eating insects and soybean borer with Bt at 3000g/hm2 . The technologies of optimum system control to the diseases and insect pests were made up in the three different modes including soybean sown in the same maize hole, soybeans interplanted in the maize field and monoculture soybeans. It demonstrated that the three techniques were significantly characterized by a good control to the dOriginating text in Chinese.Citation: Wang, Yuzheng, Ma, Lun, Wang, Jizang, Ren, Xizhou, Zhu, Wanliang. (2000). A Study on Optimum Control of Diseases and Insect Pests on Summer Soybean. Acta Ecologica Sinica, 20(3), 502-509.engCopyright for this item remains with the original copyright holder. Permission was obtained from the copyright holder to translate into English, where applicable, and to host the full-text content.summer soybeanDisease and insect pestsControllable factorIntegrated effectSystem optimum controlText