ISSN : 2488-8648
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×published date:2015-Oct-27
FULL TEXT in - | page 19-22
Abstract
Physiological parameters of Phaseolus vulgaris L. in diesel oil polluted soil and amelioration treatment using palm bunch ash on the chemical properties of experimental soils were examined for 8 weeks. The pollution treatments were obtained by mixing thoroughly 100 ml of diesel oil with 2 kg of sandyloam soil, while 0 ml (unpolluted soil) was used as control. Amelioration treatments were carried out by adding palm bunch ash at the rate of 0.5, 1.0, 1.5 and 2.0 kg to the 100 ml level of diesel oil polluted soil. Diesel oil contamination significantly (p > 0.05) reduced the available phosphorus and total nitrogen contents of the contaminated soil. The application of palm bunch ash increased the available phosphorus and total nitrogen contents of the amended soils. The values recorded for plant height, leaf number, root length and shoot/ root ratio in all treatments were lower than that of the control - 0 (unpolluted soil). In remediation treatment, the crop growth parameters increased with increase in the rate of application of palm bunch ash with values higher than those of the pollution treatments. These values were comparatively lower than that of the control (0) treatment. The calcium, magnesium, phosphorus, nitrogen, sodium, zinc, and copper contents in leaves of Phaseolus vulgaris increased significantly (p > 0.05) with increase in the level of palm bunch ash in amended soils. There were marked differences in nutrient element contents of experimental soils before and after harvest. Therefore, palm bunch ash is an effective organic supplement for remediation of diesel oil polluted soil.
Keywords: Amelioration, Diesel Oil, Phaseolus vulgaris, physiological, Polluted soil
FULL TEXT in - | page 19-22
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Copyright © International Journal of Basic Science and Technology | Faculty of Science, Federal University Otuoke 2019. All Rights Reserved.
P.M.B. 126, Yenagoa. Bayelsa state Nigeria
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