摘要
为明确60%异丙隆·炔草酯WP田间杂草防除效果及对春小麦的安全性,采用茎叶喷雾法,评价不同剂量下60%异丙隆·炔草酯WP的除草效果。结果表明:用60%异丙隆·炔草酯WP(有效量900~1 080 g/hm~2)在春小麦3叶至5叶一心期进行茎叶喷施,防除一年生杂草株防效果达80%以上,鲜重防效80%以上,各处理区小麦增产12.47%以上。施药后对小麦叶色进行观察,处理区与空白对照区没有显著差异。该药剂对春小麦田一年生杂草效果显著且对作物安全。
In order to explore the suitable dosage and safety to spring wheat,the control effect of60% Isoproturonoclodinafop-propargyl WP against annual weed was evaluated by spraying the herbicides on stem and leaf of spring wheat. The result showed that under the spraying dose of 900-1 080 g/hm2 of Isoproturonoclodinafop-propargyl WP during 3-5 leaves of spring wheat,the control effect of individual plant and fresh weight to annual weed was above 80%,and the yield increased by 12. 47% after application. After spraying,the leaf color of wheat was no significant difference between the treatment and the control. The agent has a significant effect on annual weeds in spring wheat fields and is safe for crops.
引文
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