Influence of NaCl-Induced Salinity and Cd Toxicity on Respiration Activity and Cd Availability to Barley Plants in Farmyard Manure-Amended Soil
Table 1
Treatment effects on pH, , and soluble cations and anions (±SD).
NaCl levels
pH
(dS m−1)
Cations (mmol (+) L−1)
Anions (mmol (−) L−1)
Ca++
Mg++
Na+
K+
Cl−
Without FYM
S0
7.86 ± 0.05
3.69 ± 0.05
9.01 ± 0.72
4.02 ± 0.40
9.11 ± 1.18
0.39 ± 0.04
17.4 ± 0.83
8.66 ± 0.62
1.62 ± 0.10
S1
7.83 ± 0.04
4.19 ± 0.05
9.08 ± 0.64
4.01 ± 0.51
13.2 ± 1.10
0.36 ± 0.03
21.5 ± 1.08
8.59 ± 0.89
1.61 ± 0.08
S2
7.80 ± 0.03
4.95 ± 0.10
9.06 ± 0.84
4.19 ± 0.49
21.3 ± 1.42
0.44 ± 0.01
29.5 ± 1.94
8.92 ± 0.86
1.66 ± 0.06
S3
7.77 ± 0.05
6.29 ± 0.05
9.14 ± 0.70
4.36 ± 0.52
34.4 ± 1.55
0.52 ± 0.02
43.7 ± 2.35
9.10 ± 0.80
1.64 ± 0.07
LSDS
0.04
0.06
NS
NS
1.07
0.03
1.34
NS
NS
With FYM
S0
7.67 ± 0.03
3.84 ± 0.06
10.2 ± 0.71
4.74 ± 0.31
9.41 ± 1.00
0.62 ± 0.11
17.5 ± 1.52
8.90 ± 0.97
1.66 ± 0.07
S1
7.65 ± 0.04
4.33 ± 0.06
10.2 ± 0.66
4.90 ± 0.47
13.5 ± 1.51
0.63 ± 0.05
21.3 ± 1.76
8.93 ± 0.51
1.64 ± 0.07
S2
7.56 ± 0.05
5.16 ± 0.04
10.3 ± 0.76
5.21 ± 0.54
22.5 ± 1.13
0.68 ± 0.03
30.7 ± 1.60
9.01 ± 0.54
1.65 ± 0.06
S3
7.51 ± 0.04
6.42 ± 0.10
10.5 ± 0.65
5.01 ± 0.36
35.0 ± 1.88
0.78 ± 0.05
45.6 ± 1.73
9.23 ± 0.77
1.67 ± 0.06
LSDS
0.03
0.06
NS
0.35
1.15
0.05
1.33
NS
NS
LSDSF
0.02
NS
0.23
0.15
NS
0.03
NS
NS
0.02
LSDS (P < 0.05) = salt effect; LSDSF (P < 0.05) = salt FYM effect, S0 (without NaCl), S1 (30 mM NaCl), S2 (60 mM NaCl), and S3 (120 mM NaCl); NS = not significant.