生态学杂志2009，Vol.28Issue(11)：2239-2244,6.
长期施肥对水稻光合特性及水分利用效率的影响
Effects of long-term fertilization on rice photosynthetic traits and water use efficiency
摘要
Abstract
A field experiment has being conducted for 27 years in Jinxian County, Institute of Red Soil in Jiangxi Province (116°20'24" E, 28°15'30" N) to study the effects of fertilization on the rice photosynthetic traits and water use efficiency. Four treatments were installed,i. e., no fertilization (CK), chemical fertilization (N, NP, NPK), organic fertilization (M), and chemi-cal and organic fertilization (NPKM). Long-term fertilization, especially treatment NPKM, in- creased the flag leaf chlorophyll content, net photosynthetic rate, stomatal conductance, transpi-ration rate, and water use efficiency of rice at its all growth stages and the rice yield, and de-creased the flag leaf intercellular CO_2 concentration. With the growth of rice, the chlorophyll content, net photosynthetic rate, stomatal conductance, and transpiration rate decreased, but the intercellular CO_2 concentration increased. The water use efficiency was the greatest at full-head-ing stage. There were significant positive correlations between the chlorophyll content and net photosynthetic rate at various growth stages and the rice yield, Long-term fertilization, especially the combined chemical and organic fertilization, was favorable to the rice growth and develop-ment, water use efficiency, and yield production in red soil region.关键词
长期施肥/水稻/光合特性/水分利用效率/产量Key words
long-term fertilization / rice / photosynthetic trait/ water use efficiency/ yield分类
农业科技引用本文复制引用
袁颖红,樊后保,黄欠如,廖迎春,黄荣珍..长期施肥对水稻光合特性及水分利用效率的影响[J].生态学杂志,2009,28(11):2239-2244,6.基金项目
国家自然科学基金项目(30771714)、江西省教育厅科技计划项目(GJJ08458、GJJ09614)和江西省自然科学基金资助项目(0630101). （30771714）
