油菜是本省主要的油料作物,常年占冬种面积的10%左右。油菜是一种需肥较多的作物,不仅需要吸收较多的氮和一定数量的磷,而且对于钾也比较敏感。本省广大贫下中农种植油菜,历来都很重视施用灰肥或用焦泥灰点孔,说明油菜的高产栽培需要施用钾肥。但是,以往对于化学钾肥的试验研究工作做得较少,对油菜施用钾肥的增产效果尚不明确。在毛主席无产阶级革命路线指引下,我们采取群众、领导、技术人员三结合的方式,在全省范围内选择有代表性的土壤,于 Rape is the province’s major oilseed crop, perennial winter area accounts for about 10%. Rape is a fertilizer that needs more fertilizer, which not only needs to absorb more nitrogen and a certain amount of phosphorus, but also is sensitive to potassium. The vast majority of poor and middle peasants planted rapeseed in the province have always attached great importance to the use of gray or gray coke putty hole, indicating the need for high-yielding cultivation of rape potassium fertilizer. However, in the past, little research work has been done on chemical potash fertilizer. The yield increase effect of applying potassium fertilizer to rapeseed is not yet clear. Under the guiding principle of Chairman Mao’s proletarian revolutionary line, we have adopted a combination of the masses, leaders and technicians to choose the representative soil within the province.