Corn chemical weeding "six must six"
First, we must distinguish the varieties, do not blindly use drugs. Application in corn field, post-emergence herbicides can not be used in any variety, should read the product description in detail, can be used, can not be used, do not use, to prevent phytotoxicity in corn seedlings.
Second, you need to dilute twice, do not mix water and medicine directly, especially powder type medicine. Under the premise of selecting a certain amount of water, first mix a small amount of water with the medicine, then add the remaining water, stir evenly and spray.
Third, do not spray high spray. Spray at 4 o'clock in the afternoon and at 4 o'clock in the afternoon.
Fourth, spray small, don't spray old. Grasping the weeds from the heart to the four leaves and one heart, the weeds have a certain area of ​​medicine and the resistance is small. Don't wait until the weeds grow to more than 10 cm high and spray when you see a green.
When weeding and treating pests, the herbicides should be mixed with the pyrethroid pesticides, and should not be mixed with organophosphorus pesticides.
Six must be sprayed at a fixed point, do not spray all over the field. After the application of the five-leaf corn leaves, it is necessary to spray the ridges at a fixed point. Do not spray all the fields to avoid causing phytotoxicity.
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