First, according to the types of weeds in wheat fields and the surrounding conditions of wheat, choose the road economy control agents. For example, the broad-leaved weed field dominated by gray-green lilies can be controlled with 2,4-D butyl ester, 2A 4-chlorophenol, Baikuangjing, Quxuanling, superstars, paraquat and other agents. When there are broad-leaved crop fields around the area, they should be controlled by agents with very little drift, such as fast-killing and giant stars, so as to avoid causing damage to the surrounding broad-leaved crops. Monocotyledonous weeds dominated by wild oats can be controlled by herbicides such as thrips, wild barbarum, and oat husk. In the case of monocotyledonous weeds dominated by grasses and foxtails, green mellon and grass can be used. Dan herbicides. Monoterpenes and dicotyledon weeds can be mixed with herbicides such as chlorotoluron, linuron, and gracilin, and they can also be mixed according to their properties, such as 2,4-D butyl ester and humic acid. Mixed, but to increase the dosage. Second, grasp the medication period. Soil treatment agents, such as oats, etc., are not treated before sowing or before sowing, but can also be sowed in the field after the first winter wheat, the first spring wheat, or the topdressing soil mixed with urea. Irrigation control. Stem and leaf treatment agents, such as paraquat, must be in the 3- to 5-leaf period of spring wheat. Winter wheat should be applied before delivery, otherwise it will cause serious injury. Some other herbicides, such as 2,4-D butyl ester, thrips, etc., should be applied at the 3-leaf to 5-leaf stage of pre-jointed weeds of wheat, and they will not affect the wheat yield. The spraying time is generally the day before or after the water can be taken into the ground. It can also be sprayed after the day before the rain or after the rain. It can achieve good control effect and the application time is better in the morning and evening. . Third, increase water consumption. When using herbicides, the amount of mu should be more than 30 kg. In particular, when the weather is dry, the amount of water should not be reduced. Fourth, when spraying herbicides for stems and leaves, pesticide synergists can be added at the same time, such as magic power king, enzyme-free washing powder, etc., on the one hand to enhance the adsorption capacity of crops on pharmaceutical agents, on the other hand can promote the absorption of plants. Fifth, increase the foliar fertilizer. Adding foliar fertilizers, such as potassium dihydrogen phosphate, sprayed fertilizer, urea, and multiple potassium fertilizers, together with the spraying of herbicides, on the one hand, accelerate the transmission of the pesticides in the weeds, increase the weeding effect, and on the other hand, enhance crop growth. To promote bumper harvests.
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