Pedosphere 12(3): 243--250, 2002
ISSN 1002-0160/CN 32-1315/P
©2002 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Effect of amendments on growth and element uptake of pakchoi in a cadmium, zinc and lead contaminated soil |
| CHEN Xiao-Ting1, WANG Guo2 and LIANG Zhi-Chao2 |
1 College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002 (China);
2 College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002 (China) |
| ABSTRACT |
| A pot experiment was carried out to study the effects of two amendments, lime and calcium magnesium phosphate, on the growth and Cd, Pb, Zn, Cu, Mn, Fe, N, P and K uptake of pakchoi (Brassica chinensis) in a Cd, Pb and Zn polluted acid soil in the southern part of China. The growth of pakchoi was apparently improved by lime and calcium magnesium phosphate application, the uptake of Cd, Pb, Cu and Zn by pakchoi was significantly depressed and the symptom caused by heavy metals pollution was eliminated. Meanwhile, the absorption of N, K and Mn was also inhibited by these amendments. Soil pH was the main factor controlling the uptake of the heavy metals by pakchoi. This suggests that lime and calcium magnesium phosphate could be used as effective amendments for eliminating the toxicity of heavy metals to the vegetable and inhibiting their absorption by the crop. |
| Key Words: calcium magnesium phosphate, Cd, Pb and Zn polluted soil, lime, pakchoi |
| Citation: Chen, X. T., Wang, G. and Liang, Z. C. 2002. Effect of amendments on growth and element uptake of pakchoi in a cadmium, zinc and lead contaminated soil. Pedosphere. 12(3): 243-250. |
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