Nutrient and Antinutrient Compositions and Heavy Metal Uptake and Accumulation in S. nigrum Cultivated on Different Soil Types

Table 5

(a) Effect of soil types on nitrogen and phosphorus accumulation in S. nigrum during the first and second trials.

Soil types	Nitrogen composition%							Phosphorus composition%
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
(ii) The second trial
	2.13
	2.13
	2.13
	2.13
	2.13

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(b) Effect of soil types on S. nigrum calcium and potassium composition in the first trial and the second trial.

Soil types	Calcium composition (mg/kg)							Potassium composition (mg/kg)
	Plant age after transplanting (week)
	0							0
(i) The first trial
	450
	450
	450
	450
	450
(ii) The second trial
	460
	460
	460
	460
	460

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(c) Effect of soil types on S. nigrum sodium and magnesium composition in the first trial and the second trial.

Soil types	Sodium composition (mg/kg)							Magnesium composition (mg/kg)
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
ST0	85
ST1	85
ST2	85
ST3	85
ST4	85
(ii) The second trial
ST0	80
ST1	80
ST2	80
ST3	80
ST4	80

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(d) Effect of soil types on S. nigrum zinc and iron metals uptake in the first trial and the second trial.

Soil types	Zinc composition (mg/kg)							Iron composition (mg/kg)
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
ST0 shoot	12.00
ST1 shoot	12.00
ST2 shoot	12.00
ST3 shoot	12.00
ST4 shoot	12.00
(ii) The second trial
ST0 shoot	14.00
ST1 shoot	14.00
ST2 shoot	14.00
ST3 shoot	14.00
ST4 shoot	14.00

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(e) Effect of soil types on S. nigrum copper and manganese metals uptake in the first trial and the second trial.

Soil types	Copper composition (mg/kg)						Manganese composition (mg/kg)
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
ST0 shoot	10.1
ST1 shoot	10.1
ST2 shoot	10.1
ST3 shoot	10.1
ST4 shoot	10.1
(ii) The second trial
ST0 shoot	10.8
ST1 shoot	10.8
ST2 shoot	10.8
ST3 shoot	10.8
ST4 shoot	10.8

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(f) Effect of soil types on S. nigrum translocation factor on accumulation of zinc, iron, and aluminium in the first trial and the second trial.

Soil types	Zinc composition %							Iron composition %							Aluminium composition %
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
ST0	1.33
ST1	1.33
ST2	1.33
ST3	1.33
ST4	1.33
(ii) The second trial
ST0	1.43
ST1	1.43
ST2	1.43
ST3	1.43
ST4	1.43

Values shown are mean ± SD. Different letters down the same column represent significant difference at .

(g) Effect of soil types on S. nigrum translocation factor accumulation on copper and manganese in the first trial and the second trial.

Soil types	Copper composition %						Manganese composition %
	Plant age after transplanting (week)
	0	1	2	3	4	5	6	0	1	2	3	4	5	6
(i) The first trial
ST0 shoot	1.36
ST1 shoot	1.36
ST2 shoot	1.36
ST3 shoot	1.36
ST4 shoot	1.36
(ii) The second trial
ST0 shoot	1.21
ST1 shoot	1.21
ST2 shoot	1.21
ST3 shoot	1.21
ST4 shoot	1.21

Values shown are mean ± SD. Different letters down the same column represent significant difference at .