中国生猪耗粮系数时空演变特征
刘晓宇1,2(
), 辛良杰1()
), 辛良杰1()
Spatial and temporal variations of grain consumption coefficient of pig in China
LIU Xiao-yu1,2(), XIN Liang-jie1()
), XIN Liang-jie1()
图1. 不同规模生猪耗粮系数的时间变化
Fig. 1. Variations of grain consumption coefficients of different scales
