One is to do a good job in the top-dressing period. The big bell-mouth period is a key period for corn dressing. Generally, 20-30 kilograms of urea can be applied per acre. It is advisable to apply topdressing nitrogen fertilizers such as urea. Try not to top-up compound fertilizers containing phosphorus and potassium. It is best to use a method of furrowing or acupuncture when applying, which can be combined with watering or plutonium before rain to increase fertilizer efficiency.
The second is the timely control of corn borers. The best time to control corn borer is in the trumpet period. Use 1.5% of 1.5% pungent sulfuric acid granules per acre into a large cola bottle, and place seven or eight small holes on the bottle cap to ensure prevention and treatment.
The third is to prevent it early. In regions where lodging is likely to occur throughout the year, cultivating soil with cultivator before jointing until the big bellmouth stage can promote aerial root development and improve plant resistance to lodging. Or use chemical fertilizers such as Maize, Johnson, and Ginseng before tasselling.
The fourth is to prevent drought during silking. During the lifetime of corn, the silking period is most sensitive to the drought response and is the “critical period†of the corn water requirement. In case of drought during this period, it will affect the tasseling and pollination of the corn and seriously affect the corn yield. Therefore, it is necessary to timely watering in case of drought.
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