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精异丙甲草胺对马铃薯田杂草防除效果

作  者:
雷仲潮;雷玉明;郑天翔
单  位:
河西学院农业与生物技术学院;甘肃河西走廊特色资源利用重点实验室
关键词:
精异丙甲草胺;马铃薯;杂草;防效
摘  要:
为了验证960 g/L精异丙甲草胺乳油对马铃薯田杂草的药效以及对马铃薯的安全性,采用膜下地面喷雾、定期调查的方法进行田间药效试验。结果表明:960 g/L精异丙甲草胺乳油的杀草谱较广,对马铃薯田的禾本科杂草和阔叶性杂草有较好的防治效果,禾本科杂草的优势种是稗草、狗尾草、野燕麦,阔叶性杂草优势种是藜、反枝苋、田旋花。综合考虑,最适宜的应用剂量是500~1 000倍液,马铃薯出苗率93.58%~94.65%,鲜质量防效达78.17%~80.28%,马铃薯增产达4.10%~5.68%。
译  名:
Control Efficacy of S-metolachlor on Potato Fields Weeds
作  者:
Lei Zhongchao;Lei Yuming;Zheng Tianxiang;College of Agriculture and Biotechnology, Hexi University;Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities;
关键词:
S-metolachlor;;Potato;;Weeds;;Control efficacy
摘  要:
The control efficiency and the safety of 960g/L s-metolachlor EC to weeds in potato fields were analyzed. This experiment was done by soil spray under plastic film and regular investigation. The results showed 960g/L s-metolachlor EC could be better to control weeds and broad-leave weeds in the potato field,the most dominant gramineous weed species were echinochloa crusgalli、setaria viridis、auena fatua,and broad-leave weeds species were chenopodium album、amaranthus retroflexus、convolvulus arvensis. The application dose of 960g/L s-metolachlor EC was by 500~1000 times,after spraying, the emergence rate reached 93.58% ~94.65% and the fresh weight control effect reached 78.17% ~80.28%,potato yield increasing rate reached 4.10%~5.68%.

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