短语词组短语crop high yield 农作物高产;作物高产crop -yield forecasting 作物产量预测crop s yield 作物产量crop relative yield 作物相对产量Crop potential yield 作物潜在产量rang crop -yield promoter 沃壤农作物增产剂boost crop yield 增加农产品产量Crop yield losses 作物产量损失 返回 crop yield