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草是小麦田的主要杂草 ,尤其是水稻—小麦复种田块发生较为严重。用异丙隆防除 草已有 2 0多年的历史 ,防治效果十分显著。但近来有研究表明 草已具有对异丙隆的抗性。本试验研究了不同除草剂单独相继使用与混合使用对该杂草的防治效果。结果表明 ,播后 60 d,出苗前喷施氟乐灵和第一次灌水后喷施异丙隆的处理 ,除草效果最佳 ,而在成熟期 ,第一次灌水后喷施噻黄隆的处理具有与以上处理同样的防治效果。虽然使用异丙隆的处理产量最高 ,但一些除草剂单独相继使用也具有很好的杂草防治效果 ,小麦产量显著高于未用除草剂的对照。作者认为 ,在 草防治上存在有异丙隆抗性的地区 ,可以使用本研究中的一些除草剂
Grass is the main weed in the wheat field, especially in the rice-wheat multiple cropping block. Control of weeds with isoproturon has been more than 20 years of history, the control effect is very significant. However, recent studies have shown that grass has the resistance to isoproturon. This experiment studied the different herbicide alone and mixed use of the weed control effect. The results showed that spraying trifluralin prior to emergence and spraying isoproturon after the first irrigation had the best herbicidal effect on the 60th day after sowing, and at the mature stage, The treatment has the same control effect as the above treatment. Although the production of isoproturon was the highest, some of the herbicides used alone had good weed control effect. The yield of wheat was significantly higher than that of the control without herbicide. The authors believe that there is some resistance to isoproturon in the area of grass control, you can use some of the herbicides in this study