不同施肥方式对早稻泰优398肥料利用率和产量的影响

Effects of Different Fertilization Methods on Fertilizer Use Efficiency and Yield of Early Rice Taiyou 398

为筛选出适宜宁远县的土壤最佳施肥方法,在当地常规施肥和测土配方施肥条件下种植早稻品种泰优398,对比获得其多点试验的氮肥、磷肥和钾肥利用率。研究结果表明:配方施肥方式的氮、磷、钾利用率相对于常规施肥方式分别提高了1.71%、2.96%和2.32%,增产16.7 kg/667m^(2),增幅为3.13%。全肥区处理水稻产量构成要素差异显著优于缺素区处理,测土配方施肥的全肥处理方式为最适宜宁远县早稻生产的施肥方式。

For screening out the best fertilization method for soil in Ningyuan County,early rice variety Taiyou 398 was planted under local conventional fertilization and soil testing formula fertilization.Use efficiency comparison of nitrogen,phosphorus,and potassium in multi-site test showed that compared with conventional fertilization,the utilization ratio of nitrogen,phosphorus and potassium in formula fertilization was increased by 1.71%,2.96%,and 2.32%,respectively;the yield was increased by 250.5 kg/hm^(2),and the increased percent was 3.13%.The rice yield components in total fertilizer area were significantly superior to those in deficiency area,and the best fertilization method for early rice production in Ningyuan County was formula fertilization by soil testing.