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Effect of bioremediation on the growth of Okro (Abelmoshus esculetus) in the Niger Delta soils

Author

Listed:
  • D. N. Ogbonna

    (Rivers State University of Science and Technology)

  • C. M. A. Iwegbue

    (Delta State University)

  • T. G. Sokari

    (Rivers State University of Science and Technology)

  • I. O. Akoko

    (Rivers State University of Science and Technology)

Abstract

This paper communicates the effect of bioremediation on the performance of Okro plant (Abelmoshus esculentus) in a typical Niger Delta soil that has received 5% crude oil pollution level. Biodegrading bacteria such as Pseudomonas fluorescen, Acinetobacteria iwofii, Bacillus subtilus, Arthrobacter globiformis that was isolated from previously polluted soils was introduced into the samples. The treatment combinations are as follows (A) = control without crude oil; B = soil + crude oil, (C) = soil + crude oil + microbes, (D) = soil + crude oil + microbes, (E) = soil + crude oil + microbes + fertilizer (F) soil + microbes and (G) = soil + fertilizer. The treatment (E) gave the highest number of leaves, % crop emergence, plant biomass, microbial population and degradation of petroleum hydrocarbon compared to any of the treatments that had received crude oil. This suggested that fertilizer application does not only stimulate microbial growth but it provides the plant with more available nutrients required for plant growth.

Suggested Citation

  • D. N. Ogbonna & C. M. A. Iwegbue & T. G. Sokari & I. O. Akoko, 2007. "Effect of bioremediation on the growth of Okro (Abelmoshus esculetus) in the Niger Delta soils," Environment Systems and Decisions, Springer, vol. 27(2), pages 303-309, June.
    • Handle: RePEc:spr:envsyd:v:27:y:2007:i:2:d:10.1007_s10669-007-9006-y
    DOI: 10.1007/s10669-007-9006-y
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