Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 5 Effect of soil amendments on MBN:TN ratio (%) in low-salinity and high-salinity soils
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 | 1.81 ± 0.09de | 2.00 ± 0.15e | 3.94 ± 0.04f | 3.15 ± 0.32 fg |
CK | 1.65 ± 0.19e | 2.15 ± 0.12de | 3.57 ± 0.23f | 3.06 ± 0.05 g |
G1 | 1.73 ± 0.09e | 2.54 ± 0.26cde | 4.94 ± 0.53def | 5.47 ± 0.60de |
G2 | 1.91 ± 0.16de | 2.53 ± 0.34de | 6.43 ± 0.86def | 8.06 ± 0.96bc |
Ca1 | 2.31 ± 0.24 cd | 2.76 ± 0.21cde | 4.72 ± 0.37cde | 4.31 ± 0.37efg |
Ca2 | 2.30 ± 0.20 cd | 3.42 ± 0.27bc | 5.86 ± 0.86ef | 4.98 ± 0.28defg |
B1 | 2.30 ± 0.16 cd | 3.02 ± 0.37bcd | 4.22 ± 0.33def | 4.98 ± 0.76defg |
B2 | 2.71 ± 0.11bc | 3.02 ± 0.23bcd | 5.09 ± 0.73 cd | 4.25 ± 0.21efg |
S1 | 2.73 ± 0.16bc | 3.74 ± 0.17b | 6.25 ± 0.71abc | 5.02 ± 0.41def |
S2 | 2.98 ± 0.20b | 4.65 ± 0.44a | 7.29 ± 0.54a | 6.36 ± 0.43 cd |
S1G1 | 3.69 ± 0.33a | 5.02 ± 0.37a | 8.77 ± 0.93a | 9.09 ± 0.26ab |
S2G2 | 3.85 ± 0.23a | 4.67 ± 0.45a | 8.18 ± 0.51ab | 10.48 ± 1.60a |