Some farmers' friends lack the knowledge of scientific and rational use of chemical fertilizers, and the dosage increases year by year. However, due to heavy chemical fertilizers, light organic fertilizers, or single application varieties, or unreasonable ratios of nitrogen, phosphorus and potassium, soil compaction and fertilizer utilization are often caused. The rate is low and the economic benefits are poor.
According to the data, in the case of the same amount of application of nitrogen and phosphorus, the alternate use of chemical fertilizers is much better than the single use. The reason is that long-term continuous use of any kind of fertilizer, the accumulation of residues may change the physical and chemical properties of the soil, if several varieties are used interchangeably, this effect will be minimized; Different varieties of chemical fertilizers can increase the content of different nutrients in the soil, which is conducive to maintaining the balance of soil nutrients and facilitating the selection and absorption of crops, so as to better meet the needs of crops for various nutrients. Therefore, when using chemical fertilizers, do not use one variety for a long time, and choose multiple suitable varieties for alternate use.
According to the data, in the case of the same amount of application of nitrogen and phosphorus, the alternate use of chemical fertilizers is much better than the single use. The reason is that long-term continuous use of any kind of fertilizer, the accumulation of residues may change the physical and chemical properties of the soil, if several varieties are used interchangeably, this effect will be minimized; Different varieties of chemical fertilizers can increase the content of different nutrients in the soil, which is conducive to maintaining the balance of soil nutrients and facilitating the selection and absorption of crops, so as to better meet the needs of crops for various nutrients. Therefore, when using chemical fertilizers, do not use one variety for a long time, and choose multiple suitable varieties for alternate use.
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