Corn fertilization is done in several stages
Maize is one of the most widely cultivated cereal crops in the world, and its growth and yield are closely related to fertilization. In order to better promote the growth and yield of maize, it is necessary to apply fertilizer reasonably. So, what are the stages of corn fertilization?
First, the base fertilizer. Basal fertilizer is the foundation of corn growth and provides the nutrients needed throughout the growing season. Base fertilizers mainly include organic fertilizers and chemical fertilizers. Organic fertilizer refers to farm manure, manure, compost, etc., which has the characteristics of long fertilizer efficiency and complete nutrients, which can improve soil structure and improve soil water and fertilizer retention capacity. Chemical fertilizers refer to nitrogen, phosphate, and potassium fertilizers, which can provide the available nutrients needed for corn growth. The amount of basal fertilizer should be applied according to soil fertility and target yield.
Second, seedling fertilizer. Seedling fertilizer is the key to promoting the growth of corn seedlings, which can provide sufficient nutrients to promote root development and leaf growth. Seedling fertilizer is generally based on available nitrogen fertilizer, with an appropriate amount of phosphate fertilizer and potassium fertilizer. The application rate should be based on soil fertility and seedling growth, generally 10-15 kg of urea and 5-10 kg of compound fertilizer per mu.
3. Jointing fertilizer.
Jointing fertilizer refers to the fertilizer applied at the jointing stage of corn, which can promote the vegetative growth and root development of corn. Jointing fertilizer is generally based on urea, with an appropriate amount of phosphate fertilizer and potassium fertilizer. The application rate should be determined according to soil fertility and plant growth, generally 15-20 kg of urea and 10-15 kg of compound fertilizer per mu.
Fourth, ear fertilizer. Ear fertilizer refers to the fertilizer applied at the heading stage of corn, which can promote the reproductive growth and panicle development of corn. Spike fertilizer is generally urea-based, with an appropriate amount of phosphate fertilizer and potassium fertilizer. The application rate should be determined according to soil fertility and plant growth, generally 20-25 kg of urea and 15-20 kg of compound fertilizer per mu.
5. Grain fertilizer. Grain fertilizer refers to the fertilizer applied after the heading of corn to the maturity stage, which can promote the improvement of grain weight and quality of corn. Grain fertilizer is generally urea-based, with an appropriate amount of phosphate fertilizer and potassium fertilizer. The application rate should be determined according to soil fertility and plant growth, generally 5-10 kg of urea and 5-10 kg of compound fertilizer per mu.
In short, corn fertilization is divided into five stages, namely basal fertilizer, seedling fertilizer, jointing fertilizer, ear fertilizer and grain fertilizer. Each stage has its specific fertilization time and amount, and only scientific and reasonable fertilization can improve the yield and quality of corn. At the same time, it is also necessary to pay attention to the fertilization method and fertilization ratio to avoid the negative impact of blind fertilization and excessive fertilization.