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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,结合测土配方施肥肥料校正试验,研究了测土配方施肥对水稻产量及肥料利用率的影响。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 technology of soil testing and formula fertilization, understand the rules of rice fertilization in the region and the effects of different fertilization levels on fertilizer use efficiency and yield of rice. Combining with the soil testing and fertilization fertilizer calibration test, the effects of soil testing and formula fertilization on rice yield and fertilizer utilization Rate of impact. The utilization rates of nitrogen, phosphorus and potassium in conventional fertilization were 30.64%, 14.96% and 47.87% respectively. The utilization rates of nitrogen, phosphorus and potassium in formula fertilization were 34.42%, 19.45% and 53.87%, respectively. By popularizing popularization of soil testing and formula fertilization, the utilization rates of nitrogen, phosphorus and potassium fertilizers in late rice by soil testing increased by 3.78, 4.49 and 6.0 percentage points respectively compared with conventional fertilization.