旱地玉米
dryland corn
dry land maize
maize in dryland
Dryland maize
rainfed land corn
dry land corn
deep fertilization in autumn
旱地小麦品种
dryland wheat varieties
Huang-huai winter wheat region
旱地小麦
wheat of dryland
wheat in dryland
Dry land wheat
dryland winter wheat
Dryland wheat
Dry-land wheat
Wheat in dry land field
wheat
drought area’s winter wheat