The Mixed Principle of Walnut Tree Herbicides
In the production of people use herbicides are often a mixture of two or more herbicides to achieve the purpose of a single drug while killing a variety of weeds. Mixed herbicide must follow the following principles.
1. Mixed herbicides must kill different grasses.
2. Mixed herbicides must use the same period and method of use.
3. No precipitation or delamination occurs after mixing.
4. The amount of each herbicide used after mixing should be 1/3 to 1/2 of a single amount.
Fourth, can not be mixed with herbicide formulations
Herbicides that cannot be used in combination can be used in stages, usually with three methods.
1. Different soil treatment agents are used interchangeably. For example, in the first year, trifluralin was used to kill valerian, and in the second year, the paraquat was used to kill broad-leaved weeds.
2. Soil treatment is used in conjunction with post-emergence shoot treatment.
3. Herbicides with different grass herbicides can be used together to kill the grasses and then kill the broad-leaved weeds and sedges with bentazone.
5. Formulation of Herbicide Solution Prepare the herbicide solution by first dissolving the wettable powder in a small amount of water to make a mother liquor, then loading the semi-sprayer water, pouring it into the mother liquor, adding the required amount of water, and finally shaking the application. . If the wettable powder and the emulsifiable concentrate are used together, they should be first poured into a wettable powder to make a mother liquor, then poured into the emulsifiable concentrate, and finally add enough water to shake and spray.
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