中国稻米2017，Vol.23Issue(1)：26-30,35,6.DOI:10.3969/j.issn.1006-8082.2017.01.005
不同地力和施氮水平下水稻叶片SPAD值及产量的分析
Analysis of SPAD Value of Rice Leaf and Yield Under Different Soil Fertility and Nitrogen Application
摘要
Abstract
SPAD value of rice canopy leaves and yield under different soil fertility and nitrogen application were analyzed, Qyou 6 as material. The results showed that the curve relationship between yield and apparent nitrogen supply was very significant, and there was a higher yield for Qyou 6 when apparent nitrogen supply was 575.27 kg/hm 2. The SPAD value of every growth stage under different soil fertility and nitrogen application was heading stage>jointing stage>maturity stage, and the difference of SPAD value were mainly at head-ing stage and maturity stage. The differences of SPAD value of four rice canopy leaves of different soil fertility and nitrogen application were mainly in third leaf and fourth leaf. Their SPAD values could be used as parameter to diagnose the nutritional status of nitrogen. The linear relationship between SPAD value and apparent nitrogen supply was significant, and the matching effect of adopting SPAD L3×L4/mean was best. The secondary index of SPAD value obtained from rice canopy leaves could estimate available nitrogen of soil.关键词
水稻/SPAD值/表观供氮量/速效氮/产量Key words
rice/SAPD value/apparent nitrogen supply/available nitrogen/yield分类
农业科技引用本文复制引用
李杰,冯跃华,王旭,麻井彪,吴彦利,李香玲,叶勇,黄佑岗,牟桂婷..不同地力和施氮水平下水稻叶片SPAD值及产量的分析[J].中国稻米,2017,23(1):26-30,35,6.基金项目
国家自然科学基金（31360311，31160263）；公益性行业（农业）科研专项（201503118-03）；贵州省农业科技攻关项目（黔科合NY [2011]3085号，黔科合NY [2013]3005号）；贵州省作物学省级重点学科建设计划（黔学位合字ZDXK[2014]8号）；贵州省普通高等学校粮油作物遗传改良与生理生态特色重点实验室项目 （）
