Impact of Crude Oil on Soil Nitrogen Dynamics and Uptake by Legumes Grown in Wetland Ultisol of the Niger Delta, Nigeria

Ladousse, A. and Tramier, B. (1991) Results of 12 Years of Research in Spilled Oil Bioremediation: INIPOL Eap 22. Proceedings of the 1991 Oil Spill Conference American Petroleum Institute, Vol. 1991, 577-581.

10.1002/etc.5620130503

Walworth, J.L and Reynolds, C.M. (1995) Bioremediation of a Petroleum-Contaminated Cryic Soil: Effects of Phosphorus, Nitrogen, and Temperature. Journal of Soil Contamination, 4, 299-310.

Walworth, J.L., Woolard, C.R., Braddock, F. and Reynolds, M. (1997) Enhancement and Inhibition of Soil Petroleum Bioremediation through the Use of Fertilizer Nitrogen: An Approach to Determining Optimum Levels. Journal of Soil Contamination, 6, 465-480.

10.1080/02772249509358133

John, R.C., Akpan, M.M., Essien, J.P. and Ikpe, D.I. (2010) Variation in Rhizosphere Microbiological Properties of Tropical Legumes Grown on Oil Contaminated Wetland Ultisol. Nigerian Journal of Microbiology, 24, 2081-2087.

10.1007/s00128-011-0320-1

10.1007/BF00279142

John, R.C. (2007) Fate of Nitrogen-Fixing Bacteria in Crude Oil Contaminated Wetland Ultisol. Master’s Degree Thesis, University of Uyo, Uyo, 211 p.

10.2134/agronj1972.00021962006400040001x

10.1016/0013-9327(75)90020-8

Ile, O.P. (1997) Plant Nutrition for Sustainable Production and Environment. Kluwer Academic Publishers, Dordrecht, 751-752.

Buurman, P., Van Langer, B. and Velthrost E.J. (1996) Manual for Soil and Water Analysis. Backhuys Publishers, Leiden.

Singh, D., Chhonkar, P.K. and Pandey, R.N. (1999) Soil, Plant & Water Analysis—A Method Manual. IARI, New Delhi.

Brady, N.C. and Weil, R.R. (1999) The Nature and Properties of Soils. 12th Edition, Prentice Hall Publishers, London, 1-9, 453-536, 727, 739-740.

AOAC (2005) Methods of Soil Analysis. 12th Edition, Association of Official Analytical Chemists, Washington DC.

US Environmental Protection Agency (1981) EPA Method 413.2 in Methods for Chemical Analysis of Water and Wastes. Environmental Monitoring and Support Laboratory, Cincinnati.

Bremner, J.M. (1965) Total Nitrogen. In: Black, C.A., et al., Eds., Methods of Soil Analysis, Part II, American Society of Agronomy, Madison, 1171-1175.

10.1016/0038-0717(87)90052-6

Jenkinson, D.S. (1988) Determination of Microbial Biomass Carbon and Nitrogen in Soil. In: Wilson, J.B., Ed., Soil biochemistry, Marcel Dekker, New York, 415-471.

10.1016/0038-0717(85)90144-0

10.1016/0038-0717(76)90005-5

10.1016/0038-0717(78)90098-6

10.2136/sssaj1970.03615995003400060015x

SAS Institute, Inc. (1987) SAS/STAT Guide. Version 6 Edition, SAS Institute, Inc., Cary.

10.1016/0013-9327(70)90004-2

10.1007/BF00477060

John, R.C., Akpan M.M., Essien, J.P. and Ikpe, D.I. (2010) Impact of Crude Oil Pollution on the Densities of Nitrifying and Denitrifying Bacteria in the Rhizosphere of Tropical Legumes Grown on Wetland Soil. Nigerian Journal of Microbiology, 24, 2088-2094.

Orji, J.C., Uzoho, B., Enwerem, J.O. and Ezurike, W. (2011) Assessment of the Impact to Kerosene and Diesel on Soil Nitrogen Mineralization. African Journal of Agricultural Research, 6, 2486-2493.

Deenik, J. (2006) Nitrogen Mineralization Potential in Important Agricultural Soils of Hawaii. Soil and Crop Management, 16, 1-5.

10.1007/BF00336517

10.1016/0038-0717(94)90273-9

10.1007/s00374-008-0342-y

10.1007/s11104-006-9123-2

10.2134/jeq2004.0438

Tabatabai, M.A. and Bremner, J.M. (1972) Assay of Urease Activity in Soils. American Journal of Soil Science Society, 41, 350-352.