作物学报2001，Vol.27Issue(1)：1-6,6.
冬小麦生长后期地上部分氮素的氨挥发损失
Nitrogen Losses from Winter Wheat Plant by NH<sub>3</sub> Volatilization in Late Growing Stage
摘要
Abstract
A method of enclosure growth chamber was used to collect anddetermine the ammonia volatilized from the over-ground parts of winter wheat plant growing in high and low fertility soils from jointing to ripening stage. The obtained results showed that the rates and the total amount of ammonia volatilization from the fertilized winter wheat plant in the ripening stage increased more times than that before the stage, but no significant changes were found for the wheat plant without fertilization. As to the different parts of the plant in filling stage, the lower senescing stems and leaves volatilized more ammonia than the upper normally growing ears and flag leaves. Also in this stage moderate dry stress could reduce the ammonia volatilization. Application of N combined with P fertilizer could lead to higher ammonia losses than no P fertilization during the ripening stage.关键词
冬小麦/生长后期/氮素损失/氨挥发分类
农业科技引用本文复制引用
王朝辉,田霄鸿,李生秀..冬小麦生长后期地上部分氮素的氨挥发损失[J].作物学报,2001,27(1):1-6,6.基金项目
国家重点基础研究专项经费资助，项目编号G1999011707国家自然科学基金重大项目(49890330)和面上项目(39770425)资助． （49890330）
