稻田栽前施药可明显提高多年生杂草和前茬遗留大草的除草效果
SHANGHAI AGRICULTURAL SCIENCE AND TECHNOLOGY（2001）
Abstract
一般稻田除草剂可有效地防除一年生杂草而对多年生杂草无效或效果差,连续使用杀草谱窄的除草剂后,多年生杂草会逐年增加,我们改栽后为栽前用药,从而显著地提高了对多年生杂草和难治杂草的防除效果.
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