Evaluation of nitrogen requirement and efficiency of rice in the region of Yangtze River Valley base

• 作 者: CONG Ri-huan ZHANG Zhi LU Jian
• 机 构: KeyLaboratoryofArableLandConservation（MiddleandLowerReachesofYangtzeRiver）
• 出 处: 农业科学学报：英文版
• 发表日期: 2015年10期
• 关键词: 水稻产量 长江流域 氮素 田间试验 评价 粮食产量 ORYZA 平均回收率 nitrogen fertilization yield increment N u
• 基金项目: the Special Fund for Agro-Scientific Research in the Public Interest in China （201103039）, the Fundamental Research Funds for the Central Universities Key Projects, China （2013PY113）, the Natural Scie

Overestimation of nitrogen(N) uptake requirement is one of the driving forces of the overuse of N fertilization and the low efficiency of N use in China. In this study, we collected data from 1 844 site-years of rice(Oryza sativa L.) under various rotatio