期刊论文

Effect of Nitrogen Fertilizer on Yield Characters and Nutrients Utilization of Three Late Rice Varieties

中文

作物研究

1001-5280

2013

27

2

103-107

10.3969/j.issn.1001-5280.2013.02.01

长沙市烟草公司科技项目（12231）；

本校为第一机构

为给宁乡烟区烟后晚稻品种选择提供依据,通过大田试验,研究了3个晚稻品种（湘丰优103、深优9586、五丰优T025）产量性状与养分利用及对氮肥的响应差异。结果表明:（1）不施氮条件下,五丰优T025产量最高,湘丰优103产量最低;施氮使湘丰优103增产17.9%,五丰优T025增产9.3%,深优9586增产3.4%。（2）3个品种的氮素积累总量均因施氮而显著提高,湘丰优103提高39.1%,五丰优T025提高30.4%,深优9586提高12.3%。（3）施氮促进水稻对磷、钾的吸收与累积,湘丰优103反应最敏感,其次是五丰优T025。（4）3个品种在氮素利用上存在显著差异,湘丰优103的氮农学利用率（AEN）与氮肥吸收利用率（REN）均表现最好。综合...

To provide reference to late rice varieties selection in Ningxiang tobacco areas, a field experiment was conduc- ted to study the effect of nitrogen fertilizer on yield characters and nutrients utilization of three late rice varieties, Xiang- fengyou 103, Shenyou 9586 and Wufengyou T025. The results showed that： （ 1 ）The yield of the three varieties showed the trend of Wufengyou T025 〉 Shenyou 9586 〉 Xiangfengyou 103, and yield of Xiangfengyou 103, Wufengyou T025 and She- nyou 9586 was increased by 17. 9%, 9. 3 % and 3.4% respectively afte...