When sowing corn, use a bag of chemical fertilizer for an acre of land, can you not topdressing?

When sowing corn, use a bag of chemical fertilizer for an acre of land without topdressing. The reason is the technology of corn planting, which the technician planted in the Yellow River Province. I talked with local farmers about the technology of corn planting. They are all engaged in corn planting. Because Mr. Liu graduated from an agricultural school, when talking with local farmers, he found that the local corn had never been fertilized. After planting a bag of base fertilizer, he watered himself without using other fertilizers.

After listening to this, Mr. Liu found it amazing. He told the farmers that your planting method is too backward, and corn must be fertilized. In the later stage of corn production, two kinds of drugs must be used, and water must keep up. Suddenly, a large number of farmers said impatiently, we have been so kind for decades. Lao Liu still won't give up and criticize their mistakes. Finally, the two sides almost quarreled. It's normal that planting habits are different in different areas, and there is no reason to commit crimes against the wind. There is indeed a certain difference in corn yield between southern Henan and northern Henan. In southern Henan, the high yield of corn is about 1.200 kg, and in northern Henan, the yield of corn can reach about 1.500 kg, but it is also related to local natural conditions.

The water and fertilizer conditions in the north of Henan are sufficient, and corn can be watered when it is dry, while the irrigation conditions in the south of Henan are not sufficient, and the harvest can only depend on the weather. Under this condition, topping is of little significance. In addition, with the emergence of controlled-release and slow-release technology, fertilization can be directly applied at the same time of sowing, which can save a lot of labor, and many planting areas that are not carefully managed do not pay attention to topdressing. There is no doubt that the yield of fertilization is definitely higher than that of no topdressing. The specific situation should be decided according to the local actual situation. After all, the conditions in each region are different.

Before sowing corn, in the process of soil preparation, farmers usually use compound fertilizer as base fertilizer, and the dosage will depend on the level of soil fertility. Under normal circumstances, an acre of land can be 100 kg. If the soil is barren, it can be appropriately increased to 120 kg (some farmers can use 150 kg). This base fertilizer is no different. Whether corn is fertilized or not is controversial. The first fertilization is usually in the big bell mouth stage, and the first fertilization is also available. In terms of quantity, corn grows to the later stage, because it consumes a lot of nutrition. If nutrition is not compensated, it will lead to malnutrition, heading, immature seeds, bumping and so on, which has a considerable impact on yield.