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What kind of fertilization method is used for crops is a key issue for improving fertilizer utilization and increasing crop yield. If fertilization is not properly done, it will not only cause waste, but also reduce the effect of fertilizer on reducing the benefits. Therefore, scientific and rational fertilization is an effective measure to increase fertilizer efficiency and increase crop yield. First, the application of organic fertilizers and chemical fertilizers. Organic fertilizer has complete nutrients and long-lasting fertilizer effects; chemical fertilizers have a single nutrient, but the content is high and the shellfish effect is fast. The combination of the two can complement each other and improve fertilizer efficiency. According to the experiment, livestock manure and ammonium bicarbonate, superphosphate, and potassium sulfate were used in combination, and the yield was more than 10% higher than that of a single application. Second, nitrogen, phosphorus, potassium, micro-fertilizer reasonable ratio of application of the fertilization. It is based on the different soil nutrient performance, fertilizer requirements of the law and the use of chemical fertilizers and other factors to a reasonable ratio of various nutrients, and formula fertilization can greatly increase fertilizer utilization, increase crop yields. According to the test, urea, superphosphate, and potassium chloride were applied separately, and their utilization rates were 32%, 13%, and 33%, respectively. Formula fertilization and utilization rate were increased to 58%, 35%, and 59%, respectively. Third, cover the soil deeply. For example, deep application of nitrogen fertilizers can effectively prevent the loss of nutrients and increase the utilization rate of fluoride. According to tests, the utilization of urea and ammonium bicarbonate can be more than doubled. Fourth, centralized application. If the phosphorus fertilizer has poor mobility in the soil and is easily fixed by ferric, aluminum, and calcium in the soil and loses its fertilizer efficiency, it should be applied to the soil and grow in the soil layer so that the phosphorus is fixed around the seed and the root system, which is beneficial to root absorption. , increase fertilizer utilization. Fifth, priority will be given to fertilizer in the middle of low yield field. According to experiments, 5 kg of urea and 5 kg of potassium chloride were also added to the high-yield, middle-production and low-yield fields in maize. The effect of increasing production is not the same: on average, for each additional kilogram of urea, 2.8 kilograms of corn are increased in high-yield fields, 5.1 kilograms in medium-yield fields, and 7.8 kilograms in low-yield fields; on average, 1 kilogram of potassium chloride is added, and high-yield fields are used to increase 2 kilograms of corn. The middle-income field increased by 4.2 kg and the low-yield field increased by 6.7 kg.