沈阳农业大学学报2011，Vol.42Issue(1)：10-14,5.
不同株型水稻品种对氮肥的敏感性研究
Sensitivity to Nitrogen of Two Rice Cultivars with Different Plant Type
摘要
Abstract
The erect panicle rice cultivar Shennong 07425 and the curved panicle rice cultivar Akihikari were used to study the sensitivity to nitrogen fertilizer under different nitrogen levels. The results showed that increasing application of nitrogen fertilizer enhanced plant height, number of tillers, chlorophyll content (SPAD value) and leaf area per plant within a certain range. The enhanced rate of nitrogen to plant height in Shennong07425 was 10.81％-25.72％, and it was 0.63％-15.69％ in Akihikari. The enhanced rate of nitrogen to tillers in Shennong07425 was 46.27％-79.92％, and 17.39％-54.17％ in Akihikari. The enhanced rate of nitrogen to leaf area per plant in Shennong07425 attained 12.71％-278.41％, and 22.34％-259.82％ in Akihikari. The enhanced rate of nitrogen to SPAD value in Shennong07425 attained 13.29％-101.86％, and it reached 9.08％-63.74％ in Akihikari except much higher SPAD value in tillering stage.And there were obvious diffrences on sensitivity to nitrogen between Shennong 07425 and Akihikari. The erect panicle rice Shennong 07425 exhibited greater sensitivity to nitrogen than Akihikari.The erect panicle rice was more suitable for high nitrogen level.关键词
水稻/不同品种/氮素营养/氮肥敏感性Key words
rice/ different variety/ nitrogen nutrition/ nitrogen sensitivity分类
农业科技引用本文复制引用
吕小红,陈温福,宋玉婷..不同株型水稻品种对氮肥的敏感性研究[J].沈阳农业大学学报,2011,42(1):10-14,5.基金项目
国家科技支撑计划项目(2006BAD01A01-6) （2006BAD01A01-6）
辽宁省科技厅重大攻关项目(2008201002) （2008201002）
