Acta Agrestia Sinica
Amylase and Urease Contents in the Soil of Cropland-Turned Grassland in the Agro-pastoral Zone
HAN Yong-wei, HAN Jian-guo, ZHANG Yun-wei, WANG Kun
. 2005, (1): 59 -63,74 .  DOI: 10.11733/j.issn.1007-0435.2005.01.014