The corn stalk is coarse, the root system is developed, the fertility is strong, and the growth is rapid. It is a crop that requires more fertilizer. In order to capture high yields of corn, sufficient organic fertilizer must be applied as a base fertilizer. Fertilizers can be applied to soils that are generally moderately fertile.

When 5 to 7 leaves are grown after corn seedlings, the first time to apply "seedling fertilizer", apply decomposed organic fertilizer with a small amount of nitrogen fertilizer, and use about 5 kg of ammonium sulfate per mu, which can promote the growth of seedlings. If the amount of base fertilizer is sufficient or the fertilizer is applied, the leaves are dark green, and the seedlings may be applied less or not. When the seedling height is 70 cm to 100 cm, the second time chasing the "stalking stalk fertilizer" can make the corn stalks thick and strong, which is conducive to the formation of large ears; can apply manure, bauxite or nitrogen fertilizer. The amount of nitrogen fertilizer is about 7.5 kilograms of ammonium sulfate per acre, applied at a distance of 10 cm from the plant, and combined with cultivating soil to bury it in the soil. The third time before the corn plucking, the “ear attacking fertilizer” was applied to apply nitrogen fertilizer to ensure the nutrient requirement of the corn filling stage after the heading. This fertilization had the greatest relationship with corn yield.
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