1) Focus on deepening. According to the experiment, the concentration of superphosphate concentrate is better than that of the application, that is, the phosphorus fertilizer is applied to the root part of the crop to facilitate root absorption and utilization. Generally used, such as combined with spring sowing shallow ploughing facilities, acupuncture, ditch applied.
(2) The combined application of phosphate fertilizer and organic fertilizer. The combined application of phosphate fertilizer and organic fertilizer can reduce the effect of soil phosphorus. At the same time, organic fertilizers can provide energy for microbiological activities, and microbial activity is also conducive to the release of insoluble phosphorus in soil.
(3) Reasonably apply phosphate fertilizer according to the response of crops to phosphate fertilizer. The sensitivity and absorptive capacity of various crops to phosphorus fertilizers are very different. For crops such as tubers, tubers, legumes, melons and fruits, more phosphorus is needed. Pay more attention to phosphate fertilizers. The response of wheat and corn to phosphate fertilizers is good and should be applied in conjunction with them. According to the test, the suitable range of wheat nitrogen and phosphorus ratio in our county is between 1:0.5-0.75 and corn is between 1:0.75.
(4) Phosphate fertilizer applied to soil. The effect of applying phosphate fertilizer on plots with high soil available phosphorus content is small, and phosphorus fertilizer on soil with low phosphorous content has significant effect. Phosphorus is generally less effective in soils containing 8 mg/kg or more of available phosphorus.
(5) Whether applying water-soluble phosphate fertilizer. Or insoluble phosphate fertilizer, only on the basis of adequate application of nitrogen fertilizer in order to play its role in increasing production, the effect of single application of phosphorus fertilizer, not as significant as nitrogen fertilizer alone.
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