Cadmium and zinc uptake by corn (Zea mays L.) with repeated applications of sewage sludge
Annual applications of digested sewage sludge were made on plots of an acid silt loam soil and a calcareous strip mine spoil material for a period of 12 and 7 years, respectively, to determine their effects on concentrations of Cd and Zn in the leaves and grain of one particular corn hybrid. On the...
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| Published in: | Journal of agricultural and food chemistry Vol. 32; no. 1; pp. 155 - 163 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
American Chemical Society
01-01-1984
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Annual applications of digested sewage sludge were made on plots of an acid silt loam soil and a calcareous strip mine spoil material for a period of 12 and 7 years, respectively, to determine their effects on concentrations of Cd and Zn in the leaves and grain of one particular corn hybrid. On the acid soil, leaves and grain of corn had Cd and Zn contents that were proportional to amounts of sludge-borne Cd and Zn applied during the previous growing season by furrow irrigation. But, repeated sludge applications on the same acid soil in successive years did not cause concentrations of Cd in leaves and grain of corn to increase further. Zinc concentrations were increased significantly only in leaves of plants growing on soil repeatedly irrigated with the two lower rates of sewage sludge. In contrast, repeated sludge applications on calcareous strip mine spoil resulted in additive increases of both Cd and Zn contents in corn leaves and grain. |
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| Bibliography: | T T00 ark:/67375/TPS-LX1S59SW-H istex:DDFD5C143E64DDD88824F9B185D43578EBC8FD26 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0021-8561 1520-5118 |
| DOI: | 10.1021/jf00121a037 |