[American Bull Fertilizer Group reproduced] - The best fertilization period for corn

The main effect of topdressing is to use fertilizers to regulate the growth and appearance of crops, meet the needs of crop growth for nutrition, and promote better growth and development of plants to increase their resistance to stress and increase yield. One of the key issues for topdressing is to grasp the critical period and maximum efficiency period for nutrient absorption by various crops, and try to apply scientific fertilizer in the peak of nutrition so as to increase the utilization rate of fertilizers and give full play to their role in increasing production.
The time for sucking up the corn is longer, and the amount of fertilizer needed is also trapped. The sole application of the base fertilizer and the seed fertilizer can not always fully meet the needs. Therefore, the fertilizer must be topdressed. After the jointing of the corn to the big bell-mouth period, it is the peak period of absorbing nutrients. Generally, the first fertilizer can be applied before and after the jointing, and 12 kg of ammonium nitrate or 10 kg of urea can be topdressed per acre; 7-10 days before tasselling. Should be followed by 15 kg of ammonium nitrate or 12 kg of urea. If the base fertilizer and seed fertilizer are more abundant and the soil is very fertile, you can concentrate on topdressing once, and use the second spade for deep fertilization.

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