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通过对夏粮、秋粮和油料作物降水的增减产效应分析 ,找出了降水对产量影响的关键时段 ,提出了作物合理种植比例方案。
By analyzing the effect of increasing and decreasing of precipitation on summer grain, autumn grain and oilseed crops, the key period of precipitation impact on yield was found, and the plan of reasonable crop planting was put forward.