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凹凸种植法是采用“高垄、深沟、栽双行”为特征的油菜种植法,具有防风、蓄水、增温、防病、抗倒等多种功效,有防冻、保苗、增产效果。据1988～1989年和1990～1991年试验,与朝阳沟及平作种植法比较,凹凸种植法种植的油菜冻害指数、冻死株率下降,展开度和绿叶数增加。菌核病病株率较平作的减轻72.6%。倒伏率较朝阳沟和平作的减少77.5%和78.9%。冷冬年凹凸种植法的油莱比平作的增产28.3%,暖冬
The bump planting method is a rapeseed planting method characterized by “high ridge, deep groove and double planting lines”. It has the functions of windbreak, water storage, warming, disease prevention and anti-fall, and has the effects of frost protection, seedling keeping and yield increasing. According to the tests from 1988 to 1989 and from 1990 to 1991, compared with the planting method of Chaoyanggou and Pingping, the frostbite index of rapeseed planted by the bump planting method decreased, the rate of frostbite decreased and the number of green leaves increased. Sclerotinia plant strains than the average reduction of 72.6%. The lodging rate decreased by 77.5% and 78.9% respectively over the Peace Corridor. Cold winter bump planting method of oil production for Lebibin 28.3% increase, warm winter