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There are three major trends in the development of compound fertilizer: the first is the specialization of multiple varieties. Different crops have different special fertilizers, and special fertilizers are developed according to the laws of crop growth and development, and the amount of fertilizer absorbed. When selecting compound fertilizer, farmers should choose the corresponding special fertilizer for different crops. If it is not used, it will violate the law of crop absorption, and the potential for crop yield will not be realized, and some nutrients will be wasted. The second is multi-functional medicinalization. The combination of pesticides and fertilizers eliminates the pesticide dressing procedure. Once applied, it can ensure the nutrients needed for crops and can control underground pests and seedling pests, and has multiple effects. The third is long-term high concentration. With the development of agricultural production, high-concentration and long-acting compound fertilizer is more and more popular among farmers. The application of this type of fertilizer reduces the amount of fertilization, facilitates cultivation, eliminates the problem of topdressing, reduces labor and improves fertilizer utilization. Labor saving, labor saving, time saving, quality improvement and efficiency.
How to choose compound fertilizer? A look at the packaging. Qualified products are double-layered to protect against moisture and moisture. There are three license numbers on the exterior of the package: the production license number, the business license number, the product quality registration certificate number, and the three major nutrient element contents of nitrogen, phosphorus and potassium, and the manufacturer and address. Open the outer packaging and have the product manual in the bag. Second, look at the physical properties of compound fertilizer. The compound fertilizer with good product quality has uniform particle size, no agglomeration and no powder. Third, we must buy compound fertilizer produced by regular manufacturers. The production equipment and production technology of the regular manufacturers are relatively advanced, the products produced are evenly granulated, the nutrients are balanced, and the quality is stable. The product formulas are developed by experts based on the characteristics of soil nutrient status and crop fertilizer requirements. Scientific and reasonable, targeted, full of nutrients, and sufficient content. Fourth, we must choose a suitable compound fertilizer for local use. Most of the locally produced compound fertilizers are based on the soil nutrient content of the region and surrounding areas, the crop fertilizer requirements and the fertilizer effect. Some farmers blindly purchase compound fertilizers that are not suitable for local application, which not only affects the waste of individual nutrients caused by crop growth and development, but also affects production. Five bogey use "double chlorine" compound fertilizer for years. "Dichloro" compound fertilizer is a compound fertilizer produced by using ammonium chloride and potassium chloride as raw materials, and the chlorine ion content is high. Chloride ion is a trace element needed for crop growth, and the right amount can promote crop growth, and excessive amount will cause fat damage. If the "dichloro" compound fertilizer is applied year after year, the chloride ion will remain in the soil, and the excessive absorption of the crop will cause "chlorine damage", and the soil will also suffer from "salt damage".
Compound fertilizer is generally used as a base fertilizer. The method of applying the foundation is applied when the soil is pre-sowed, and the fertilizer is applied in the first line, and the second line of the fertilizer is applied by the lateral deep application. At present, it is best to see that the compound fertilizer, especially the long-acting compound fertilizer, has the best effect. The lateral deep application position is generally 5-7 cm deep at the side of the fertilizer. Side-deep application achieves seed fertilizer isolation and avoids burning seedlings.
How to choose compound fertilizer? A look at the packaging. Qualified products are double-layered to protect against moisture and moisture. There are three license numbers on the exterior of the package: the production license number, the business license number, the product quality registration certificate number, and the three major nutrient element contents of nitrogen, phosphorus and potassium, and the manufacturer and address. Open the outer packaging and have the product manual in the bag. Second, look at the physical properties of compound fertilizer. The compound fertilizer with good product quality has uniform particle size, no agglomeration and no powder. Third, we must buy compound fertilizer produced by regular manufacturers. The production equipment and production technology of the regular manufacturers are relatively advanced, the products produced are evenly granulated, the nutrients are balanced, and the quality is stable. The product formulas are developed by experts based on the characteristics of soil nutrient status and crop fertilizer requirements. Scientific and reasonable, targeted, full of nutrients, and sufficient content. Fourth, we must choose a suitable compound fertilizer for local use. Most of the locally produced compound fertilizers are based on the soil nutrient content of the region and surrounding areas, the crop fertilizer requirements and the fertilizer effect. Some farmers blindly purchase compound fertilizers that are not suitable for local application, which not only affects the waste of individual nutrients caused by crop growth and development, but also affects production. Five bogey use "double chlorine" compound fertilizer for years. "Dichloro" compound fertilizer is a compound fertilizer produced by using ammonium chloride and potassium chloride as raw materials, and the chlorine ion content is high. Chloride ion is a trace element needed for crop growth, and the right amount can promote crop growth, and excessive amount will cause fat damage. If the "dichloro" compound fertilizer is applied year after year, the chloride ion will remain in the soil, and the excessive absorption of the crop will cause "chlorine damage", and the soil will also suffer from "salt damage".
Compound fertilizer is generally used as a base fertilizer. The method of applying the foundation is applied when the soil is pre-sowed, and the fertilizer is applied in the first line, and the second line of the fertilizer is applied by the lateral deep application. At present, it is best to see that the compound fertilizer, especially the long-acting compound fertilizer, has the best effect. The lateral deep application position is generally 5-7 cm deep at the side of the fertilizer. Side-deep application achieves seed fertilizer isolation and avoids burning seedlings.
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