旌德县单季稻肥料利用率田间试验

Study on Fertilizer Utilization Rate of Single Cropping Rice in Jingde County

为掌握安徽省宣城市旌德县单季稻施肥中氮、磷、钾肥的利用率现状,提高氮、磷、钾肥的利用效率,开展了单季稻肥料利用率田间试验。结果表明,全肥区产量高于缺素区产量,测土配方施肥和常规施肥水稻的产量差异不显著。测土配方施肥水稻的氮、磷、钾肥利用率分别为39.7%、13.7%、55.9%,较常规施肥分别提高4.4百分点、0.4百分点和2.3百分点。

In order to grasp the current situation of utilization rate of nitrogen, phosphorus and potassium fertilizer in single cropping rice in Jingde County,Xuancheng City,Anhui Province, and improve the utilization rate of nitrogen, phosphorus and potassium fertilizer, a field experiment on the fertilizer utilization rate of single cropping rice was carried out.The results showed that the rice yield in the whole fertilizer area was higher than that in the without fertilizer application area, and there was no significant difference in the yield between the soil testing and formulated fertilization and the conventional fertilization.The utilization rates of nitrogen, phosphorus and potash fertilizer of the soil testing and formulated fertilization in rice were 39.7%, 13.7% and 55.9% respectively, which were 4.4, 0.4 and 2.3 percentage points higher than that of conventional fertilization.