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《Journal of Fujian Agricultural and Forestry University(Natural Science Edition)》 2005-01
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The transfer characteristics of soil Zn to the edible parts of pakchoi

WANG Guo, SU Miao-yu, CHEN Yan-hui, LIN Fen-fang, LUO Dan (College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China)  
The transfer characteristics of Zn from 26 soil samples collected from different areas of Fujian Province to the edible parts of pakchoi [Brassica chinensis (L.)] were studied. Although there was no significant correlation between the Zn contents of the vegetables and the soil available Zn extracted by DTPA, an extremely significant correlation between the Zn transfer factors based on the Zn content (fresh weight basis) of the edible parts and the soil available Zn (DTPA) was found. This relationship can be best described by power model (y=ax~b), which links the soil available Zn with the vegetable Zn. It is recommanded that this relationship be used for predicting the Zn limit for establishing soil environmental quality criteria when there is no significant correlation between the crop Zn and the soil available Zn.
【Fund】: 福建省科技厅资助项目(2003Y026).
【CateGory Index】: X173
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