Wheat is a crop that requires more phosphorus. Scientific application of phosphate fertilizer is one of the key measures to improve the efficiency of phosphate fertilizer, reduce the cost of fertilization, and promote high quality and high yield of wheat.
Organic manure is mixed and applied after fermentation. Organic fertilizers are rich in organic matter, phosphoric acid, and various organic weak acids, which can turn insoluble phosphorus into soluble phosphorus. At the same time, after the organic fertilizer is mixed with the phosphate fertilizer, the contact surface between the phosphate fertilizer and the soil can be greatly reduced, thereby reducing the soil's fixation of phosphorus. Therefore, it can not only greatly improve the utilization rate of phosphate fertilizer, but also effectively overcome the problem of phosphate fertilizer burned seedlings.
Heaping method: half a month before application, add 10-20 parts of organic fertilizer to 1 part of phosphate fertilizer and mix well, and seal with mud outside.
Combined with nitrogen, potassium and zinc fertilizers. According to the requirements of wheat for nitrogen, phosphorus, potassium, zinc and other elements, scientific application of nitrogen, potassium, and zinc fertilizers when applying phosphate fertilizers can not only effectively supplement soil nutrients, but also improve the utilization rate of phosphorus fertilizers by 20-30 %. The proportion of its application: generally high-yield wheat field with 4,000 kg of high-quality organic fertilizer per acre, 50 kg of standard phosphate fertilizer, 30 kg of standard nitrogen fertilizer, 12 kg of standard potassium fertilizer, 1.5 kg of zinc sulfate per acre in zinc-deficient land 3000 kg of high-quality organic fertilizer, 50 kg of standard phosphate fertilizer, 35 kg of standard nitrogen fertilizer, 8 kg of standard potassium fertilizer, and 1 kg of zinc sulfate are suitable.
Concentrated application. The concentrated application of phosphate fertilizer can reduce the contact surface between phosphate fertilizer and soil, reduce soil's fixation of phosphorus, and improve utilization rate. Phosphate concentrated strip application can increase utilization rate by 28% and increase wheat yield by about 12%.
Phosphate fertilizer is used for soil. On neutral and calcareous alkaline soils, water-soluble superphosphate should be used.
Dosage is appropriate. Increasing the number of kilograms of wheat per kilogram of phosphate fertilizer decreases with the increase in the amount of phosphate fertilizer, but if the amount is too small, the increase in yield per unit area is not significant, and an average application amount of 50-60 kg per mu is appropriate.
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