Wheat is a crop that requires more phosphorus. Scientific application of phosphate fertilizer is one of the key measures to increase phosphate fertilizer efficiency, reduce fertilizer costs, and promote high quality and high yield of wheat.
The organic fertilizer was mixed and used after fermentation. Organic fertilizers are rich in organic matter, phosphoric acid, and a variety of organic weak acids that make insoluble phosphates soluble phosphates. At the same time, after the organic fertilizer and the phosphate fertilizer are mixed, the contact surface of the phosphate fertilizer and the soil can be greatly reduced, thereby reducing the fixation of the phosphorus on the soil. Therefore, the use of organic fertilizer and stacking after fermentation can not only increase the utilization rate of phosphate fertilizer, but also effectively overcome the problem of phosphorus fertilizer.
Stacking method: In the first half of the application, according to the proportion of 1 part of phosphate fertilizer by adding 10-20 parts of organic fertilizer, piling it well and sealing it with mud.
With nitrogen, potassium, zinc fertilizer application. According to the requirements of wheat for nitrogen, phosphorus, potassium, zinc and other elements, scientific application of nitrogen fertilizer, potash fertilizer, and zinc fertilizer when applying phosphate fertilizer can effectively supplement the deficiency of soil nutrients and increase the utilization rate of phosphate fertilizer by 20-30. %. The proportion of application: General high-yield wheat field: 4,000 kg of high-quality organic fertilizer per mu, 50 kg of standard phosphate fertilizer, 30 kg of standard nitrogen fertilizer, 12 kg of standard potassium fertilizer, 1.5 kg of zinc sulfate in Mg-deficient land; High quality organic fertilizer 3000 kg, standard phosphate fertilizer 50 kg, standard nitrogen fertilizer 35 kg, standard potassium fertilizer 8 kg, zinc sulfate 1 kg is appropriate.
Centralized application. The concentrated application of phosphate fertilizer can reduce the contact surface of phosphate fertilizer and soil, reduce soil phosphorus fixation, improve utilization. Phosphate concentration strip application can increase the utilization rate by 28% and increase wheat production by about 12%.
Due to the use of phosphate fertilizer. In neutral and calcareous alkaline soil, water-soluble superphosphate should be used.
The amount should be appropriate. The kilograms of wheat production per kilogram of phosphate fertilizer decreased with the increase of the amount of phosphate fertilizer, but if the dosage was too small, the yield per unit area was not significant, and the general mu application amount was 50-60 kilograms.
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