alfalfa grassland 第1页

Effects of deep soil desiccations on alfalfa grasslands in different rainfall areas of the Loess Plateau of China Soil desiccation characteristics of alfalfa grasslands and soil water restoration effects in alfalfa\|grain crop rotations on the semi\|arid areas of the Loess Plateau Carbon sequestration effect following retirement of degraded croplands into alfalfa forage land in the middle of Hexi Corridor region, northwest China Dry soil layer forming and soil moisture restoration of alfalfa grassland in the semi-humid region of the Loess Plateau