No abstract available
MeSH terms
-
China
-
Conservation of Natural Resources / methods
-
Conservation of Natural Resources / trends*
-
Crop Production / methods*
-
Crop Production / statistics & numerical data
-
Crop Production / trends*
-
Efficiency, Organizational / statistics & numerical data*
-
Efficiency, Organizational / trends*
-
Farms / organization & administration
-
Farms / trends
-
Politics