摘要
以我国南方湿润地区有渍害威胁的排水农田为主要研究对象 ,根据实测数据 ,分析了上边界土壤氮素浓度的变化规律和作物吸氮规律 。
Nitrogenous pollution is serous in many areas in China nowadays. A lot of attention has been paid to nitrogenous pollution worldwide. Based on experimental data, nitrogen concentration changes in soil solution and nitrogen absorption by crop in surface layer soil are analyzed in this paper.
出处
《灌溉排水》
CSCD
北大核心
2001年第2期51-54,共4页
Irrigation and Drainage
基金
国家自然科学基金 (5 96 790 2 8)
