MATERIALS & METHODS Two soils under different management practices were chosen for incubation i.e. grassland and arable from Beijing Forestry University area (40°002 252 N, 116°202 40"E) in Beijing, China.
MATERIALS & METHODSTwo soils under different management practiceswere chosen for incubation i.e. grassland and arablefrom Beijing Forestry University area (40°002 252N, 116°202 40"E) in Beijing, China.