中国不同区域农田养分输入、输出与平衡
李书田, 金继运
Characteristics of Nutrient Input/Output and Nutrient Balance in Different Regions of China
LI Shu-Tian, JIN Ji-Yun
中国农业科学 . 2011, (20): 4207 -4229 .  DOI: 10.3864/j.issn.0578-1752.2011.20.009