Weeding cornfields, it’s so simple and efficient

Spring sowing corn field weeding is at the time (the spring temperature is generally low at the beginning of spring corn planting, daily average 10-12 ° C, self-seeking, from seed germination to 5 leaf stage growth slow, field weeds grow at the same time, slow emergence and untidy emergence The damage of corn field grass is generally serious. If the control is not timely, it will lead to grass seedlings, affecting the growth of corn and causing loss to the yield. It is recommended that the following methods for weeding corn fields be simple and efficient, and send you a corn harvest field without grass.

Pre-emergence soil-sealed pharmaceutical weeding

Such herbicides which are sprayed on the surface of the ground before sowing in the corn field so that the weeds cannot germinate and emerge can be used. Commonly used closed herbicides are: acetochlor, Yu Nongsi and so on. This type of herbicide forms a film on the surface. When the weeds come into contact with the film during the emergence process, the absorption agent is killed, but it is safe for corn. 150-200g of 40% Yu Nongsi or 90% acetochlor is applied per acre, and 40-50kg of water is sprayed on the surface to carry out soil sealing treatment. When the soil is closed, according to the soil moisture condition, the amount of medicinal water should be appropriately increased in case of drought, and the sealing layer of the agent will deepen with the underwater seepage, and the sealing effect is better. The need to be reminded during the application process is to evenly spray, not re-spray, or leak. The spraying time should avoid the high temperature period at noon.

Post-emergence weeding

For plots that have not been soil-sealed or have poor sealing effects, wait for the 3-5 leaf stage after corn seedlings, 2-4 days of weeds, and use 40% of Yu Ning Lok Suspending Agent 67-100ml or 24% per acre. Nicotinamide, atrazine, water, 25-35kg spray, spray should not be sprayed into the corn heart leaves, do not use drugs twice, can not spray the medicine on the dicotyledonous crops such as melons, fruits, vegetables and beans. Avoid using organophosphorus pesticides within 7 days of treatment to avoid phytotoxicity.

Weeding in corn fields is simple and efficient. Correct weeding, ensure that Miaoquan, Miaoqi, Miaozhuang, lay a good foundation for high yield.

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