MINERALIZATION OF SOIL ORGANIC NITROGEN - A REVIEW

Article Id: ARCC4250 | Page : 152-156
Citation :- MINERALIZATION OF SOIL ORGANIC NITROGEN - A REVIEW.Agricultural Reviews.2004.(25):152-156
1.0. Osemwota, N.L. Edosomwan and M. Okwuagwu
Address : Department of Soil Science, °Ambro5 Alii University, Ekpoma - Nigeria

Abstract

Three models viz., single exponential, double exponential and hyperbolic have been used extensively by researchers to describe net mineralization of nitrogen in the soils. Many authors have opined that the double exponential model is better than the single exponential model for describing organic nitrogen mineralization in the disturbed soil samples. Researchers have also indicated that the single exponential model as well as the hyperbolic model can be used to estimate reliable No (Nitrogen mineralization potential) and K (rate constant) values in soils if a non linear square fitting techniques is used. However, it is imperative to note that organic nitrogen mineralization rate is affected by factors such as soil moisture, temperature, nature of organic matter, texture, cultivation and type of amendment added to the soils etc. Relevant literature pertaining to factors influencing mineralization of soil organic nitrogen, indicators of net nitrogen release and predictive models have been documented here.

Keywords

References

  1. Berg, B. and McClaugherty, C. (1987). Biogeochem., 4: 219-224.
  2. Cabrera, M.L. and Kissel, D.E. (1988). Soil Sci. Soc. Am. J., 52: 110-1015.
  3. Cambell, c.A. et a/. (1981). Aust. J. Soil Res., 19: 323-332.
  4. Clement, J.K. et a/. (1995). Soil Sci. Soc. Am J., 59: 1595-1603.
  5. Constantinides, M. and Fownes, J.H. (1994). Soil Boil. Biochem., 26: 49-55.
  6. Dalai, RC. and Mayer, RJ. (1987). Aust. J. Soil Res., 50: 323-326.
  7. Deans, J.R. et a/. (1986). Soil Sci. Soc. Am. J., 50: 323-326.
  8. El Gharous, M. et al. (1990). Soil Sci. Soc. Am. J., 54: 438-442.
  9. Fish, M.C. and Schmidt, S.K. (1995). Soil Sci. Soc. Am. J., 59: 1036-1043.
  10. Fox, RH. et a/. (1990). Pl. Soil, 29: 251-259.
  11. Haynes, RJ. (1986). In: Mineral Nitrogen in the Plant Soil System. (Haynes, R.J. ed.) Academic Press, Oralando, FL. RP 52-176.
  12. Hideakikai(W.M. and Yoshico, Y. (1984). Fertil. Res., 5: 271-295.
  13. Juma, N.G. etal. (1984). Soil Sc. Soc. Am. J., 48: 753-757.
  14. Kwari, J.D. (1991). Niger. J. Soil Sci., 10: 63-76.
  15. Melillo, J.M. eta/. (1982). Ecology., 63: 621-626.
  16. Miller, R.D. and Johnson, D.O. (1964). Soil Sci. Soc. Am. Proc., 28: 644-647.
  17. Molina, J.A.E. et a/. (1980). Soil Sci. Soc. Am J., 44: 442-443
  18. Muller, M.M. et al. (1988). Fert. Soils, 6: 78·83.
  19. Oglesby, K.A. and Fownes, J.H. (1992). Pl. Soil, 143: 127-132.
  20. Poovarodom, S. and Tate, R.L. (1988). Soil Sci. Soc. Am. J., 52: 111-116.
  21. Smith, J. et a/. (1980). Soil Sci. Soc. Am. J., 44: 986-1000.
  22. Stand Ford, G. (1986). So.{4Sci. Soc. Am. Proc., 32: 679-682.
  23. Stand Ford, G. and Smith, S.J. (1972). Soil Sci. Soc. Am. Proc., 36: 465-472.•
  24. Stand Ford, G. and Epstein, E. (1974). Soil Sci. Soc. Am. J., 38: 103-106.
  25. Stevenson, F.J. (1986). In: Cycles of Soil. Carbon. Nitrogen, Phosphorus. Sulphur, Micronutrients. JW. Ley, New York.
  26. Vallis, I. and J.ones, RJ. (1973). Soil BioI. Biochem., 5: 391-398.
  27. Viets, F.G. Jr. (1965). The plants need for and use of Nitrogen. In: Soil Nitrogen Agronomy. (Bartholomen, W.V. and Clark, F.E. ed.) pp 503-549.

Global Footprints