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1983—1985年在吴江、吴县的白土和黄泥土上设置田间小区试验,证实施用化学钾肥或草木灰可促进油菜生长和抗病增产,菌核病病情指数降低9.7—16.9%,形成菌核的基茎减少6.5—8.8%,增产幅度14—57%,每公斤化学钾肥能增产菜籽1.9—3.5公斤,亩施10公斤氯化钾的净收益20元左右.如无化学钾肥,施用草木灰和窑灰钾肥同样可以起到抗病增产效果.
1983-1985 in Wujiang, Wuxian clay and yellow soil to set up field plot experiments show that the application of chemical potash or ash can promote rape growth and disease resistance, sclerotinopathy index decreased 9.7-16.9%, the formation of sclerotia based Stem reduction of 6.5-8.8%, the rate of increase of 14-57%, chemical potassium per kilogram of rapeseed yield 1.9-3.5 kg, Kushu 10 kg of potassium chloride net income of about 20 yuan. If no chemical potash, the application of ash and kiln Ash potash can also play a disease-resistant and yield-increasing effect.