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Table 6 Effects of crop residue incorporation and K fertilization on soil MBC/MBN ratio

From: Comparative effects of crop residue incorporation and inorganic potassium fertilization on soil C and N characteristics and microbial activities in cotton field

TreatmentNanjingDafeng
SSFSBSBOSSSFSBSBOS
Control5.46 ± 0.21b5.65 ± 0.20b5.11 ± 0.25b5.30 ± 0.21ab5.60 ± 0.27c5.55 ± 0.25b5.03 ± 0.27c5.24 ± 0.23a
W0C15.95 ± 0.18a5.51 ± 0.27b5.26 ± 0.24b5.39 ± 0.23ab6.05 ± 0.28ab5.79 ± 0.29b5.17 ± 0.19bc5.22 ± 0.25a
W1C05.62 ± 0.11b6.65 ± 0.35a5.87 ± 0.19a5.56 ± 0.20ab5.85 ± 0.21abc6.30 ± 0.32a5.53 ± 0.22ab5.43 ± 0.22a
W1C16.06 ± 0.16a7.02 ± 0.31a6.09 ± 0.14a5.73 ± 0.26a6.11 ± 0.16a6.61 ± 0.20a5.81 ± 0.21a5.58 ± 0.22a
K1505.51 ± 0.19b5.55 ± 0.23b5.10 ± 0.26b5.26 ± 0.20b5.63 ± 0.22bc5.87 ± 0.15b5.10 ± 0.29c5.20 ± 0.24a
K3005.52 ± 0.18b5.58 ± 0.12b5.14 ± 0.22b5.33 ± 0.21ab5.70 ± 0.19abc5.81 ± 0.14b5.04 ± 0.14c5.27 ± 0.21a
F value6.55**20.34**11.79**2.032.768.14**6.15**1.25
  1. MBC, microbial biomass carbon; MBN, microbial biomass nitrogen; SS, seedling stage; FS, flowering stage; BS, boll-setting stage; BOS, boll-opening stage. Different treatments are defined in the Table 2
  2. F values and significance levels (**P < 0.01)