In general, the amount of water used for contact-killing herbicides> systemic herbicides, soil treatment agents> stem and leaf treatment agents. Some herbicides use water according to their physicochemical properties. For example, Kemiful's original drug is insoluble in water. When the concentration of the liquid is less than 2%, the active ingredient will crystallize, so the amount of water can not be too large to 13 ~20 litres is appropriate; another example is 2,4-D butyl ester, which is highly volatile. Although it is an insecticidal herbicide, it should not be too low. Paraquat is highly toxic and has a large amount of water (spraying with a hand sprayer, diluting one part of the preparation should dilute more than 40 times), which will help improve the safety of humans and animals.
If the weeds are thin and the grass is small, the weeds can be less watered; otherwise, the watering should be more. The liquid can completely cover the weeds and avoid the waste caused by the liquid drooling.
Environment When the weather and soil are dry, the amount of water must be increased.
The amount of water to be used is closely related to the method of application, application method, and application apparatus. For example, high-efficiency herb can be applied with a backpack sprayer. The water consumption per mu is 20-30 liters, and the sprayer sprayer is 7-14 liters; Use low amounts of water for single use and high amounts for use with broadleaf herbicides.
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