Study of the Physiological Dynamics of Cadmium Accumulation in Two Varieties of Rice with Different Cadmium-Accumulating Properties
Table 1
Physical and chemical properties of soil samples.
Test item
Soil treatment
Cd-1
Cd-2
Cd-3
ST-Cd (mg/kg)
0.16 ± 0.00c
0.56 ± 0.00b
0.89 ± 0.00a
SE-Cd (mg/kg)
0.05 ± 0.00c
0.27 ± 0.00b
0.53 ± 0.00a
TN (g/kg)
0.85 ± 0.02c
1.55 ± 0.02b
1.69 ± 0.01a
AN (mg/kg)
71.33 ± 0.88 b
118.67 ± 0.88a
118.33 ± 1.20a
TP (g/kg)
0.35 ± 0.01c
0.45 ± 0.01b
0.49 ± 0.01a
AP (mg/kg)
4.30 ± 0.06c
6.47 ± 0.09a
5.37 ± 0.03b
TK (g/kg)
11.80 ± 0.15b
11.87 ± 0.09b
13.40 ± 0.10a
AK (mg/kg)
40.67 ± 1.20b
33.67 ± 1.20c
51.33 ± 0.88a
pH
6.54 ± 0.00b
7.03 ± 0.01a
6.09 ± 0.01c
SOM (g/kg)
11.17 ± 0.03c
27.17 ± 0.09a
25.80 ± 0.12b
Note. The data in the table are mean ± standard error. ST-Cd, soil total Cd; SE-Cd, soil effective Cd; TN, total nitrogen; AN, available nitrogen; TP, total phosphorus; AP, available phosphorus; TK, total potassium; AK, available potassium; SOM, soil organic matter.
