直播水稻播后封闭除草试验简报

陈时健,张顾旭, 舒亚君

Shanghai Agricultural Science and Technology(2021)

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Abstract
为验证25g/L五氟磺草胺可分散油悬浮剂在直播水稻田封闭处理中的适宜使用量、防治效果及对水稻生长的安全性,特开展了相关田间试验.结果表明,水稻播种后4 d,使用25 g/L五氟磺草胺OF 20 mL+40%苄嘧·丙草胺WP 60 g进行封闭处理,对直播稻田稗草、千金子、莎草和阔叶杂草均有较好的防除效果,施药后30 d对总草的防效为78.30%,可有效减少田间杂草基数,为后期杂草茎叶处理减轻压力.
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