First, timely application. The absorption of phosphate fertilizer in crops is the fastest in seedling stage, accounting for more than half of the total absorption in the growing season. If the crops are deficient in phosphorus at the seedling stage, it will affect the later growth. Even if it is applied later, it is difficult to meet the loss caused by phosphorus deficiency in the early stage. Can not be deficient in phosphorus.
Second, detailed application. When storing calcium superphosphate, it is broken and sieved to facilitate root absorption.
Third, concentrated application. Phosphorus is easily fixed by the fixation of iron, aluminum, calcium, etc. in the soil. Therefore, it should be applied to the acupoints and strips to fix the phosphorus around the seeds and roots, thus reducing the fixation with the surrounding soil and facilitating the absorption of the roots.
Fourth, layered application. The mobility of phosphate fertilizer in the soil is small, and the application is basically fixed there and does not move there. Therefore, the application of phosphate fertilizer in the bottom layer and the shallow layer, the application of phosphorus fertilizer in the shallow layer is conducive to the absorption of the seedlings, thereby promoting the early return of the plants to the green, fast tillering. Generally, 20 to 40 kg of phosphate fertilizer is applied per 667 square meters, 1/3 is applied in shallow layer, and 2/3 is applied in deep layer.
5. Mixed with organic fertilizer. Phosphate fertilizer, especially calcium magnesium phosphate fertilizer combined with organic fertilizer, can convert the insoluble phosphorus in the phosphate fertilizer into the effective phosphorus that can be absorbed and utilized by the crop, so as to be absorbed and utilized by the crop.
6. Mix with nitrogen fertilizer. There is a certain proportion of crops that absorb various nutrients. If the proportion is out of balance, the crops will not grow well. Single application of nitrogen fertilizer, the root system is not well developed, easy to fall, and vulnerable to pests and diseases, accelerate the excessive consumption of nitrogen fertilizer in the soil, causing imbalance of nitrogen fertilizer. The combination of nitrogen fertilizer and phosphate fertilizer can balance the nutrients and promote the root system to lay the foundation for the high yield of crops.
Seven, fertilization outside the roots. When the crops are in the late growth stage, the roots are gradually aging, and the ability to absorb nutrients is weak, often resulting in phosphorus deficiency. At this point, the water soluble calcium superphosphate can be sprayed onto the crop leaves to allow the phosphorus to enter the plant through the pores or horns of the face. Cereal crops can be used at a concentration of 1 to 3%; vegetables can be applied at a concentration of 1% on a sunny morning or evening.
Eight, appropriate fertilization. Phosphate fertilizer is applied to the soil with phosphorus deficiency, such as red soil dry field, yellow mud field, duck hoe mud field, cold soaking field and other phosphorus-deficient soils. Fertilizer soil and fields that have been continuously applied with a large amount of phosphate fertilizer in previous years may be applied less or not.
Second, detailed application. When storing calcium superphosphate, it is broken and sieved to facilitate root absorption.
Third, concentrated application. Phosphorus is easily fixed by the fixation of iron, aluminum, calcium, etc. in the soil. Therefore, it should be applied to the acupoints and strips to fix the phosphorus around the seeds and roots, thus reducing the fixation with the surrounding soil and facilitating the absorption of the roots.
Fourth, layered application. The mobility of phosphate fertilizer in the soil is small, and the application is basically fixed there and does not move there. Therefore, the application of phosphate fertilizer in the bottom layer and the shallow layer, the application of phosphorus fertilizer in the shallow layer is conducive to the absorption of the seedlings, thereby promoting the early return of the plants to the green, fast tillering. Generally, 20 to 40 kg of phosphate fertilizer is applied per 667 square meters, 1/3 is applied in shallow layer, and 2/3 is applied in deep layer.
5. Mixed with organic fertilizer. Phosphate fertilizer, especially calcium magnesium phosphate fertilizer combined with organic fertilizer, can convert the insoluble phosphorus in the phosphate fertilizer into the effective phosphorus that can be absorbed and utilized by the crop, so as to be absorbed and utilized by the crop.
6. Mix with nitrogen fertilizer. There is a certain proportion of crops that absorb various nutrients. If the proportion is out of balance, the crops will not grow well. Single application of nitrogen fertilizer, the root system is not well developed, easy to fall, and vulnerable to pests and diseases, accelerate the excessive consumption of nitrogen fertilizer in the soil, causing imbalance of nitrogen fertilizer. The combination of nitrogen fertilizer and phosphate fertilizer can balance the nutrients and promote the root system to lay the foundation for the high yield of crops.
Seven, fertilization outside the roots. When the crops are in the late growth stage, the roots are gradually aging, and the ability to absorb nutrients is weak, often resulting in phosphorus deficiency. At this point, the water soluble calcium superphosphate can be sprayed onto the crop leaves to allow the phosphorus to enter the plant through the pores or horns of the face. Cereal crops can be used at a concentration of 1 to 3%; vegetables can be applied at a concentration of 1% on a sunny morning or evening.
Eight, appropriate fertilization. Phosphate fertilizer is applied to the soil with phosphorus deficiency, such as red soil dry field, yellow mud field, duck hoe mud field, cold soaking field and other phosphorus-deficient soils. Fertilizer soil and fields that have been continuously applied with a large amount of phosphate fertilizer in previous years may be applied less or not.
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