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Position: Home > Articles > Control Efficacy and Safety of Soil-applied Herbicides in Cotton Field Agrochemicals 2010,49 (11) 76-79

土壤处理除草剂对棉田杂草的防效及安全性

作  者:
马小艳;马艳;彭军;奚建平;马亚杰;李希风
单  位:
中国农业科学院棉花研究所农业部棉花遗传改良重点实验室
关键词:
除草剂;防效;安全性;棉田杂草
摘  要:
通过田间药效试验,研究了7种棉田常用土壤处理除草剂对棉田杂草的防除效果及对棉花的安全性。结果表明:48%氟乐灵EC、23.5%乙氧氟草醚EC、48%仲丁灵EC、33%二甲戊乐灵EC、50%扑草净WP对棉田杂草的防除效果均较理想,药后40d对杂草的鲜重防效均达85%以上,但23.5%乙氧氟草醚EC施用剂量过高会对棉花幼苗造成一定的药害。7种棉田土壤处理除草剂对棉花后期生长发育及产量构成基本无影响。
译  名:
Control Efficacy and Safety of Soil-applied Herbicides in Cotton Field
作  者:
MA Xiao-yan,MA Yan,PENG Jun,XI Jian-ping,MA Ya-jie,LI Xi-feng (Cotton Research Institute,CAAS,Key Laboratory of Cotton Genetic Improvement,Ministry of Agriculture,Anyang 455000,Henan,China)
关键词:
herbicide; control efficacy; safety; cotton weed
摘  要:
Seven soil-applied herbicides were sprayed on soil with pre-emerge cotton to study their control effect on weed and safety to cotton. The results showed that excellent weed control effect could be obtained with trifluralin 48% EC,oxyfluorfen 23.5% EC,dibutalin 48% EC,pendimethalin 33% EC and prometryn 50% WP. At 40 days after application,they provided weight control efficacy 85% against cotton field weed. However,injuries of cotton seedling were caused by the herbicide oxyfluorfen 23.5% EC under high concentration. The cotton growth and development were not significantly influenced by all herbicides.

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