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1. The role of base fertilizer. The base fertilizer is the fertilizer applied before the wheat is planted. The aim is to create good soil conditions for wheat growth and development, to lay the foundation for wheat growth, and to supply nutrients throughout the growing season.
2. Type and amount of base fertilizer. Organic fertilizers such as manure, human waste, soil and fertilizer, straw and other organic fertilizers, phosphorus and potassium fertilizers are suitable for base fertilizer, and the effect is very good. In general, these fertilizers can be used as a base fertilizer. Nitrogen fertilizer is used as base fertilizer, and it is suitable for dry wheat field. The dosage generally accounts for about 60% of the total amount.
3. Method of application of base fertilizer. The first is to combine deep farming and fertilization. That is, the fertilizer is applied to the entire plough layer when applied, so that it is sufficiently mixed with the ploughed soil to expand the contact surface between the fertilizer and the root. The second is to concentrate fertilization, applying the base fertilizer by the method of ditching, and this method can be used in the case of less fertilizer. Phosphate fertilizer and high-quality organic fertilizer can be mixed and stacked for centralized application to prevent fertilizer phosphorus from being fixed by the soil, thereby improving fertilizer efficiency.
Second, the seed fertilizer
1. The role of seed fertilizer. Fertilizer is a fertilizer that is mixed with seeds when the wheat is planted. Its purpose is to supply seedling nutrients and create good conditions for crop seedling growth.
2. Type and amount of fertilizer. Fertilizers used as seed fertilizers are generally quick-acting fertilizers that are easily absorbed and utilized, requiring relatively stable physical and chemical properties, and no toxic or side effects on seed germination and seedling growth. Ammonium sulfate, superphosphate and high-quality compound fertilizer can be used, and the dosage is 23~25 kg per mu.
3. Method of application of seed fertilizer. The application of the seed fertilizer can determine the appropriate method according to the type of fertilizer. The quick-acting nitrogen and phosphate fertilizers can generally be mixed with the seeds or re-seeded. Micro-fertilizers can generally be used in seed dressing, soaking and other methods.
Fertilization technology for wheat sowing
First, the base fertilizer
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