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| Adeofun, C.O.; Opeolu, B.O.. |
| Agriculture, unlike industrial activity which has always resulted in pollution, has been environmentally benign for most of its history until after the Second World War when the system disintegrated. Then, crop residues were incorporated into the soil or fed to livestock, the manure returned to the land in amounts that could be absolved and utilized. Mechanized farming, however, is reliant on synthetic fertilizers and pesticides. Hence, crop residues and livestock excreta, which were once recycled have become wastes and their disposal a continuing problem for the farmer. With the present national policy on agriculture, there is the need for private sector participation especially in the area of environmental health and safety for economic and environmental... |
| Tipo: Report |
Palavras-chave: Environmental Economics and Policy; Farm Management; Health Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/54375 |
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| Opeolu, B.O.; Bamgbose, O.; Arowolo, T.A.; Kadiri, S.J.. |
| Previous studies have shown that some vegetables have the ability to absorb metals from soil. Since they are early maturity species, they possess the potential to be used as phytoremediating agents. Also, synthetic chelates have been found to induce lead desorption from soil matrix, thereby enhancing uptake into plant tissues. Therefore, a study was carried out to determine the potential of Amaranthus cruentus as a soil lead remediating plant. The experiment was carried out using a randomized block design. Soil samples were subjected to five levels of lead contamination namely control, 600ppm, 600ppm + EDTA, 1800ppm and 1800ppm + EDTA, each treatment had five replicates. Three plants each were carefully transplanted from nursery to experimental pots and... |
| Tipo: Report |
Palavras-chave: Amaranthus cruentus; Lead; Phytoremediation; Soil; Land Economics/Use. |
| Ano: 2005 |
URL: http://purl.umn.edu/54398 |
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