中国半干旱区农田土壤碳、氮、磷含量对玉米生产的影响
胡延斌, 张强, 肖国举, 仇正跻, 李永平, 郭占强

Effect of soil carbonnitrgen and phosphate contents on maize production in semi-arid regions of China
Yanbin Hu, Qiang Zhang, Guoju Xiao, Zhengji Qiu, Yongping Li, Zhanqiang Guo
图4 农田土壤固碳的增产协同效应与阈值10
Fig.4 The synergistic effects of enhanced SOC sequestration on crop yield and its threshold 10