The first time before and after the jointing (9 to 10 leaves) was applied, commonly known as attacking culm fertilizer, the purpose is to ensure the healthy growth of corn plants, the general application of urea 10 kg, can also be applied to high-quality organic fertilizer 1000 to 1500 kg.
The second time before corn heading 10 to 15 days, commonly known as the attacking panicle fertilizer, the fertilization on the number of ears and the number of grains per panicle, a large role, can be applied to urea 20 ~ 25 kg per mu.
The third time in corn tasselling to flowering, topdressing, commonly known as attacking grain fertilizer, generally 10 kg per mu, the fertilization to prevent premature aging of leaves and increase grain weight has an important role, it is necessary to point out that if more preparatory fertilizer, corn growth Strong corn fields without de-fermentation can be used without fertilizer. In order to prevent later de-fertilization and ensure the robust growth of plants, it is also possible to combine foliar control with foliar application of fertilizer. 100 grams of potassium dihydrogen phosphate per acre, 50 kg of water, and corn field spray can be used.
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