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①2.4—D钠盐和2.4.5-T钠盐1—2公斤/公顷能有效防除玉米、小麦、果园以及林带的杂草节省劳力。叶面处理的除草效果较土壤处理的要好些,但在气候冷涼地区使用效果不明显,在长有大量粘粘草(Cerastium sp.)和单子叶杂草的田中使用也无明显效果,配制药液的pH为酸性的,其药效较碱性的高,在药液中加少量硫銨或硝銨(每公斤2.4—D可加硫銨或硝銨5公斤)能显著增效。②均三氮苯类除莠剂:西玛嗪和阿特拉嗪(每公顷用量4—6公斤、土壤处理)扑草淨(用量1.5公斤/公顷,叶面处理)均能有效防除玉米田杂草。在雨水多的年份以及轻盐渍土中西玛嗪和阿特拉嗪的药效更为明显。西玛嗪和阿特拉嗪在土中的残效可达一年以上,根据新疆主要农作物对药剂的敏感性来看,高粱和棉花作为玉米的后作比较适宜。扑草淨在棉田中应用(用量1.5公斤/公顷,出苗前处理)也有效,对棉苗有轻微抑制,但如在棉花出苗后处理对棉苗就会有严重伤害。③敌稗能很好用来消灭稻秧田和水稻直播田中的稗草,以稗草的2—3叶期施药,每亩用量0.4斤较为适宜。
① 2.4-D sodium and 2.4-5-T sodium 1-2 kg / ha can effectively control weeds in corn, wheat, orchards and forest belts to save labor. The weed control effect of foliar treatment was better than that of soil treatment, but the effect was not obvious in the cool area of the climate. There was no obvious effect in the field with Cerastium sp. And monocotyledonous weeds. The pH of the liquid is acidic, and its efficacy is higher than that of the alkaline. Adding a small amount of ammonium sulfate or ammonium nitrate in the liquid medicine (2.4 kg / kg can add ammonium sulfate or ammonium nitrate 5 kg) can significantly enhance the efficiency. ② triazine benzene herbicides: cimethrin and atrazine (4-6 kg per hectare, soil treatment) prothiocum (1.5 kg / ha, foliar treatment) can effectively control corn field Weeds. In the rainy years and salinized soil cimethazine and atrazine effect more obvious. The residual effect of simazine and atrazine in the soil can reach more than one year. According to the sensitivity of Xinjiang’s main crops to the pesticides, sorghum and cotton are more appropriate as maize. The use of prometryn in cotton fields (1.5 kg / ha, pre-emergence treatment) is also effective, with slight inhibition of cotton seedlings, but if the treatment of cotton seedlings after the emergence of cotton seedlings will have serious injuries. ③ enemy of barnyard grass can be very good for the elimination of rice seedling and direct seeding field of barnyard grass to barnyard grass 2-3 leaf application, the amount of 0.4 kg per acre more appropriate.