福建农业学报2013，Vol.28Issue(6)：525-528,4.
福建杂交早稻氮素吸收及利用效率的研究
Nitrogen Absorption and Utilization Efficiency in Early Hybrid Rice of Fujian Province
摘要
Abstract
The experiments were conducted to evaluate the effects of ditferent levels of mtrogen applicauon amount on early hybrid rice of Fujian province ‘Jinyou 2155’ and ‘T78 you 2155’.The results indicated that nitrogen contents in organs of the two cultivars decreased with plant growth and development process; The nitrogen contents,nitrogen accumulation and nitrogen amount from vegetation transfer in different organs of the two cultivars at different growing stages increased with the increase of nitrogen application amount after the transplant; The nitrogen accumulation and nitrogen uptake amount during the period of grain grouting depended more on vegetation in 'T78 you 2155'; Nitrogen harvest index and soil nitrogen contribution ratio between two cultivars had no significant difference among different nitrogen treatments.Nitrogen crops physiological efficiency of the two cultivars reduced with the increase of N application amount,while nitrogen fertilizer utilization ratio of the two cultivars showed different changing trend as the increase of nitrogen application.关键词
杂交早稻/施氮量/含氮量/氮素吸收/利用效率Key words
early hybrid rice/ nitrogen application amount/ nitrogen content/ nitrogen uptake/ utilization efficiency分类
农业科技引用本文复制引用
邹文广,许旭明,饶鸣钿,张受刚,马彬林,卓伟,韦新宇,杨旺兴,杨腾帮..福建杂交早稻氮素吸收及利用效率的研究[J].福建农业学报,2013,28(6):525-528,4.基金项目
福建省科技计划重大专项(2004NZ01-4) （2004NZ01-4）
