What are the fertilization methods for growing corn in summer?
What fertilization methods are there for growing corn in summer? Please introduce the following methods for reference when growing corn: 1. Apply basal fertilizer and seed fertilizer well. Before sowing summer corn, basal fertilizer should be applied well, mainly organic fertilizer. Straw from the previous wheat crop can also be returned directly to the field, but an appropriate amount of nitrogen fertilizer should be applied together to adjust the carbon-to-nitrogen ratio and accelerate...
What fertilization methods are there for growing corn in summer? Please introduce
When growing corn, you can refer to the following methods for fertilization:
1. Apply basal fertilizer and seed fertilizer well. Before sowing summer corn, basal fertilizer should be applied well, mainly organic fertilizer. Straw from the previous wheat crop can also be returned directly to the field, but an appropriate amount of nitrogen fertilizer should be applied together to adjust the carbon-to-nitrogen ratio and accelerate straw decomposition. Seed fertilizer is mainly quick-acting nitrogen, phosphorus, and potassium chemical fertilizers, such as diammonium phosphate (5-10 kg per 667 sq m), potassium sulfate compound fertilizer (45% content, 10-15 kg per 667 sq m), etc.
2. Proper topdressing is crucial. Topdressing plays a decisive role in corn growth. Topdressing is mainly quick-acting nitrogen, and phosphorus and potassium fertilizers should be applied according to different growth stages of corn. It is usually divided into three topdressings, namely seedling fertilizer, jointing fertilizer, and ear fertilizer. Summer corn has relatively high demand for nitrogen, phosphorus, and potassium at the jointing and booting stages, so phosphorus and potassium fertilizers should be applied together according to specific conditions.
3. Clever use of foliar fertilizer. Spraying 0.2%-0.3% potassium dihydrogen phosphate 2-3 times at the jointing stage of corn can increase corn yield by more than 10%. Spraying 0.1%-0.3% zinc sulfate aqueous solution at the seedling and jointing stages can prevent the occurrence of white seedling and chlorotic leaf disease in corn.
4. Use special fertilizers with care. Nowadays, special fertilizers with various names keep appearing on the agricultural input market, and among them there are no shortage of inferior products. Therefore, when purchasing and using fertilizer, be careful and cautious, and choose and use fertilizer according to the growth characteristics of corn and the soil nutrient content.
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