Recently, China's agricultural department has issued a series of guidance on the use of fertilizers and precautions. Experts point out that the rational use of fertilizers is the key to increasing crop yields. For example, when planting wheat, a scientific fertilization plan should be developed based on soil fertility and target yield. For fields with moderate fertility, it is recommended to apply 8-13 kg/mu of nitrogen fertilizer (N), 4-6 kg/mu of phosphorus fertilizer (P2O5), and 4-6 kg/mu of potassium fertilizer (K2O). Meanwhile, experts also suggest that the combination of organic fertilizer and chemical fertilizer can further improve soil fertility and reduce the amount of chemical fertilizer used.

In addition, attention should be paid to some details when using fertilizers. For example, urea, as the most commonly used nitrogen fertilizer, should not be immediately watered as it may cause fertilizer damage and seedling burning. The application amount of nitrogen fertilizer should not be too much, especially for soybean shell crops. Excessive nitrogen fertilizer can lead to late ripening and affect yield.