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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 7 Effect of soil amendments on WEON: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

1.98 ± 0.04f

1.11 ± 0.02e

3.66 ± 0.05f

4.05 ± 0.51f

CK

4.77 ± 0.17a

5.54 ± 0.44a

9.61 ± 0.73a

9.89 ± 0.49a

G1

3.72 ± 0.22bc

3.94 ± 0.31bc

7.76 ± 0.39abcd

8.99 ± 0.18ab

G2

3.89 ± 0.25b

3.98 ± 0.45bc

8.82 ± 0.64ab

8.35 ± 0.81abc

Ca1

3.92 ± 0.011b

3.94 ± 0.41bc

7.77 ± 0.51abcd

6.82 ± 0.33cde

Ca2

3.95 ± 0.15b

4.76 ± 0.11ab

7.93 ± 1.01abc

7.94 ± 0.83bcd

B1

3.19 ± 0.08 cd

3.60 ± 0.47 cd

6.26 ± 0.18cde

6.37 ± 0.11de

B2

2.45 ± 0.10ef

2.67 ± 0.19d

4.80 ± 0.59ef

3.98 ± 0.54f

S1

3.72 ± 0.33bc

4.62 ± 0.16ab

5.33 ± 0.44ef

6.39 ± 0.78de

S2

3.80 ± 0.25b

4.77 ± 0.41ab

6.82 ± 0.28bcde

6.82 ± 0.35cde

S1G1

2.70 ± 0.17de

3.61 ± 0.26 cd

5.00 ± 0.48ef

5.25 ± 0.37ef

S2G2

2.92 ± 0.10de

3.20 ± 0.22 cd

5.78 ± 0.27de

6.83 ± 0.80cde

  1. Values followed by different letters indicate significant differences among treatments (p < 0.05) according to LSD