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耕作和化学除草对大豆田杂草数量影响的研究结果表明，药剂除草结合两次中耕，辅以一次人工拔大草，可以经济有效地将杂草危害控制在最低水平
The results of tillage and chemical weed control on the quantity of weeds in soybean field showed that herbicide combined with twice cultivating and man-assisted pull-out grass could economically and effectively control the weed damage to a minimum level