摘要
研究了基肥不同施氮量与各时期叶色变化及SPAD值与叶片全氮含量之间的关系。结果表明,基肥不同用量对分蘖期的4、5、6叶叶色无显著影响,8叶定型前后对6、7叶叶色影响比较明显,对剑叶定型期、抽穗期叶色影响不明显;SPAD值与叶片中的全氮含量呈显著的直线相关性。
The relationships between basal nitrogen fertilizer amount and leaf color change at different stage, SPAD value and total nitrogen content in leaf were studied in the experiment. The results showed that different amounts of nitrogen as basal fertilizer had no significant effect on the color of 4th, 5th, and 6th leave at tillering stage, but had remarkable effect on the color of 6th and 7th leaves when the 8th leaf figured. The effect on leaf color of flag leaf at heading stage was not remarkable. The experimental data demonstrated a very significant linear correlation between SPAD value and the content of total nitrogen in leaf.
出处
《北方水稻》
CAS
2007年第3期55-57,共3页
North Rice
关键词
寒地水稻
氮肥
叶色
Rice in cold region
Nitrogen
Leaf color
