In many rural households, it is estimated that corn will be grown, whether in the South or the North, but only slightly less in the South. Generally, if you need to grow corn, you need to take three medicines. When is it? Let's tell everyone later!
When the corn is beaten three times:
1. The first time the drug is used, the herbicide in the corn field and the best use period of the herbicide after the corn seedling period are the three-to-five-leaf stage of corn and the second to fourth-leaf stage of weeds. Good time. Beyond this range, it is necessary to spray the grass and the small grass in a targeted manner to avoid the high temperature time of the heart and the noon of the corn, thereby reducing the occurrence of phytotoxicity. At the same time as weeding, rice planthoppers and thrips must be prevented to prevent the occurrence of rough disease.
2. If you use the medicine for the second time, you can treat insects, prevent diseases and prevent droughts and floods. Six days after the application of the herbicide, it is necessary to control corn armyworms and aphids, and insects on corn currently have some resistance. Usually high-chlorine and non-methyl salt cannot be killed, and high-end pesticides must be selected for control. Insectonitrile can be used for prevention and control, and the effective period is about 20 days.
When controlling pests, it is necessary to add brassinolide and use it simultaneously with functional foliar fertilizer, which can effectively repair yellow seedlings and weak seedlings caused by herbicide damage, and can also repair weak seedlings caused by heavy rain and accelerate corn. Growth. It plays a key role in drought resistance, mites and strong seedlings. In order to prevent and control the occurrence of rot, the corn eaten by insects is easily infected with wounds and used in combination with fungicides.
3. When the third dose is used, the corn eight-leaf period is the best period for controlling the long-term corn, and it is very important to control the long-term and anti-reverse period. While controlling the momentum, the combination of pesticides, fungicides and functional foliar fertilizers can play a role in disease prevention, insecticide and yield increase. If conditions permit, spraying pollination can be carried out at the 10 leaf stage of maize, which plays an important role in high temperature and heat damage leading to poor pollination, food deficit and grain incompleteness.
In the above, the small series tells you in detail about the time to plant corn for three times. Are you clear now? Generally, if you want to grow corn well, you still need to apply the right medicine at each time!
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