Soil was collected from the surface layer (0-20cm) of agricultural land in Duling, south Xi’an, China. After air-dried, the soil simple was passed through a 2mm sieve. The physico-chemical properties of the soil were given
Soil was collected from the surface layer (0-20cm) of agricultural land in Duling, south Xi’an, China.After air-dried, the soil simple was passed through a 2mm sieve. The physico-chemical properties of thesoil were given