HAN Yong-wei. Effects of Transforming Cropland into Grassland on Soil Phosphorus and Potassium in Agro-pastoral Transitional Zone[J]. 2004, 18(4): 24-28.
HAN Yong-wei. Effects of Transforming Cropland into Grassland on Soil Phosphorus and Potassium in Agro-pastoral Transitional Zone[J]. 2004, 18(4): 24-28.DOI: