Dilution of herbicides usually depends on the following factors to determine the amount of water used: First, the physical and chemical properties of the drug. Such as Kemifeng original drug is insoluble in water, when the spray concentration is less than 2%, the active ingredient will crystallize out, so the amount of water can not be too large, with 13 ~ 20 liters is appropriate; Another example is 2,4-D butyl ester Strong volatility, although the suction stem and leaf treatment of herbicides, but the amount of water can not be too low; and if the higher toxicity of paraquat, water consumption is conducive to improving the safety of people and livestock. The second is the environmental conditions. When the weather and soil are dry, the amount of water when diluting the herbicide should be appropriately increased. The third is the characteristics of weeds. If the grass is thin and the grass is small, the amount of water used when diluting the herbicide can be less; on the contrary, the amount of water used should be more, so that the liquid can completely cover the weeds, and the pesticides can flow and cause waste.
In addition, the amount of water used to dilute the herbicide is also closely related to the mode of application and application equipment. For example, high-efficiency herbicide can be applied with a backpack sprayer. The water consumption per mu is 20 to 30 liters. If a boom sprayer is used, the water consumption per mu is 7 to 14 liters. In addition, when the herbicide is used alone, the amount of water used is a low amount, and when the herbicide is used in combination with a broad-leaf herbicide, the amount of water used is a high amount.
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