Official Journal of the Asia Oceania Geosciences Society (AOGS)
From: Effects of amendments on carbon and nitrogen fractions in agricultural soils of Yellow River Delta
Treatments | Low-salinity soil | High-salinity soil | ||
---|---|---|---|---|
0–20 cm | 20–40 cm | 0–20 cm | 20–40 cm | |
Initial | 3.83 ± 0.01b | 8.57 ± 0.37a | 6.23 ± 0.08a | 6.80 ± 0.75a |
CK | 1.71 ± 0.11 fg | 1.87 ± 0.22f | 2.62 ± 0.22ef | 2.74 ± 0.17de |
G1 | 1.71 ± 0.15 fg | 2.17 ± 0.15ef | 2.59 ± 0.20ef | 1.90 ± 0.06e |
G2 | 1.56 ± 0.05 g | 2.26 ± 0.35ef | 2.14 ± 0.12f | 2.71 ± 0.29de |
Ca1 | 2.08 ± 0.06ef | 2.80 ± 0.19ef | 3.32 ± 0.24de | 3.25 ± 0.22de |
Ca2 | 2.07 ± 0.06ef | 2.28 ± 0.07ef | 2.81 ± 0.35def | 2.78 ± 0.18de |
B1 | 3.35 ± 0.29bc | 3.93 ± 0.38c | 3.55 ± 0.24 cd | 4.12 ± 0.45 cd |
B2 | 4.53 ± 0.33a | 5.21 ± 0.56b | 4.76 ± 0.48b | 5.83 ± 0.75ab |
S1 | 2.69 ± 0.19d | 2.97 ± 0.03de | 4.72 ± 0.43b | 3.93 ± 0.48 cd |
S2 | 2.62 ± 0.11d | 2.76 ± 0.37e | 3.47 ± 0.14 cd | 3.69 ± 0.29 cd |
S1G1 | 2.52 ± 0.13de | 2.96 ± 0.28de | 4.62 ± 0.58b | 4.97 ± 0.47bc |
S2G2 | 2.98 ± 0.16 cd | 3.85 ± 0.31 cd | 4.24 ± 0.19bc | 5.02 ± 0.38bc |