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为了探索玉米地杂草有效防治方法,选择了农达和禾耐斯两种除草剂,结合不同播种时期直播种植技术,对玉米芽前除草技术进行了研究。结果表明:农达和禾耐斯的药剂组合,作用温度范围较广,在10～29℃内防治效果均超过84%,绝大部分防效在90%以上,有效地阻止了杂草的发生;此外,该药剂组合还可显著提高玉米的产量,最高增产幅度达72.14%。并总结了直播玉米芽前除草的操作规程,为玉米规模化种植除草提供了依据。
In order to explore the effective control of weeds in cornfields, we selected two herbicides, Nongda and Wo Nesi, and combined with the direct seeding cultivation techniques at different seeding times to study the pre-emergence weed control techniques. The results showed that the combination of Nongda and Wo Neisi had a wide range of action temperature and the control effect was more than 84% at 10 ~ 29 ℃ with the control effect of over 90%, effectively preventing weeds from occurring In addition, the combination of the chemical can also significantly increase the yield of corn, the highest rate of increase of 72.14%. And summarizes the pre-broadcast corn pre-weed operating rules, for the large-scale corn weeding provides the basis.