Analysis on the Correction Experiment of Rice Fertilizer Utilization Efficiency in Yongxing County

为了进一步推广测土配方施肥技术，了解本地区水稻施肥规律以及不同施肥水平对水稻肥料利用率和产量的影响，提高肥料利用率，提高水稻产量。本试验结合永兴县测土配方施肥肥料较正试验，研究了测土配方施肥对水稻产量及肥料利用率的影响。结果表明：常规施肥区氮、磷、钾肥利用率分别为30.64%、14.96%、47.87%；配方施肥区氮、磷、钾肥利用率分别为34.42%、19.45%、53.87%。通过推广普及测土配方施肥，晚稻测土配方施肥氮、磷、钾利用率比常规施肥分别提高了3.78、4.49、6.0个百分点。In order to further promote the soil testing formula fertilization technology, understand the fertilization rules of rice in the local area, and the impact of different fertilization levels on the fertilizer utilization efficiency and yield of rice, improve fertilizer utilization efficiency, and increase rice yield. This experiment combines the soil testing formula fertilization and fertilizer correction experiment in Yongxing County to study the effects of soil testing formula fertilization on rice yield and fertilizer utilization efficiency. The results showed that the utilization rates of nitrogen, phosphorus, and potassium fertilizers in the conventional fertilization area were 30.64%, 14.96%, and 47.87%, respectively; The utilization rates of nitrogen, phosphorus, and potassium fertilizers in the formula fertilization area are 34.42%, 19.45%, and 53.87%, respectively. By promoting and popularizing soil testing formula fertilization, the utilization rates of nitrogen, phosphorus, and potassium in late rice soil testing formula fertilization increased by 3.78, 4.49, and 6.0 percentage points respectively compared to conventional fertilization.