Effects of soil disinfectants on diseases and yield of continuously-cropped peanut.

In field conditions,quicklime,Carbendazim,Pentachloronitrobenzene(PCNB) and Fenaminosuff were used to soil disinfection treatment of continuously-cropped peanut field.As compared with the blank control,their effects on the seedling rate,leaf disease in growth period and yield of continuously-cropped peanut were studied.The results showed that the use of these soil disinfectants could improve seedling rate,reduce the incidence of leaf spot and rust disease in peanut growth period,establish ideal economic output structure,and very significantly enhance the peanut yield.The yield-increasing rate of applying PCNB was the highest among them,followed by applying Carbendazim.