Carbon and Nitrogen Mineralization in Relation to Soil Particle-Size Fractions after 32 Years of Chemical and Manure Application in a Continuous Maize Cropping System
Table 3
Soil microbial biomass carbon(SMB-C) and CO2/SMB-C (qCO2) in different particle-size fractions from the control (CK) or soil that received 32 years of chemical fertilizer application (N: nitrogen, P: phosphorus, K: potassium) and either 0 (M0), 30(M30) and 60 (M60) t manure ha-1 yr-1.