In the process of growing corn, the time of sucking fertilizer is long, and the amount of fertilizer needed is also large. The application of base fertilizer and seed fertilizer can not fully meet the needs. Topdressing is one of the important measures to ensure high yield of corn. After the jointing to the big trumpet period, the corn is the peak period of nutrient absorption. Generally, the first fertilizer can be applied before and after jointing, and 12 kg of ammonium nitrate or 10 kg of urea can be applied per acre; 7-10 days before the tasseling The second fertilizer should be applied, and 15 kg of ammonium nitrate or 12 kg of urea can be applied per acre. If the base fertilizer and seed fertilizer are sufficient and the soil is very fertile, one can concentrate the top dressing and combine the second shovel for deep fertilization.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
Huaxian Agricultural Technology Promotion Center Lu Shuguang
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