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除草次数对杂草群落和夏玉米产量的影响
Authors
丁娜
刘海涛
+8 more
孟杰
宁堂原
曾彦
焦念元
甄珍
蒋高明
赵建文
郭立月
Publication date
1 January 2014
Publisher
Doi
Cite
Abstract
以山东省沂蒙山区夏玉米田为研究对象,设化学除草剂除草(CK)、不除草(W0)、苗期人工锄草1次(W1)、苗期+开花期人工锄草两次(W2)4种处理方式,研究除草次数对农田杂草生物多样性和对夏玉米产量的影响。结果表明,玉米田中9种杂草的多样性指数以W0处理最高,W1处理次之;花后40 dW1、W2处理玉米地上部生物量与CK差异不显著(P0.05)W0处理与CK差异显著(P0.05)产量也表现出相同规律。研究表明,当地苗期适时进行1次除草,不仅能维持杂草多样性,而且可避免作物产量损失;与人工锄草两次相比,次除草能省工省时,减少成本
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of Botany,Chinese Academy Of Sciences
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Last time updated on 29/04/2023