Case Studies with African Soils with Regard to P and K

  • Kodoth Prabhakaran Nair


The chapter discusses the importance of the precise determination of both P and K buffer power to formulate precise fertilizer (phosphatic and potassic) recommendations for the cultivation of the important fodder crop white clover (Trifolium repens) in The Republic of Cameroon. White clover is an important fodder crop for the emerging livestock industry in the country. Incorporating the P and K buffer power into the computations has resulted in the precise prediction of plant uptake. As against the routine soil tests for P (Olsen’s test) and for K (NH4OAc test), which have shown very poor correlation with plant uptake, incorporation of the respective P and K buffer power values into the statistical computations significantly enhanced the correlation between fertilizer application and nutrient uptake, clearly reflecting in crop yield. The chapter further discusses the relevance of the buffer power determination in the case of other heavy metals like Molybdenum (Mo), Iron (Fe), Manganese (Mn) and Boron (B).


Phosphorus buffer power Potassium buffer power Cameroon White clover 


  1. Barber, S. A. (1995). Soil nutrient bioavailability: A mechanistic approach. New York: Wiley.Google Scholar
  2. Barber, S. A., Halstead, E. H., & Follett, R. E. (1967). Significant mechanisms controlling the movement of manganese and molybdenum to plant roots growing in soil (pp. 299–304). Aberdeen: Trans. Joint Meeting Commissions II and IV. International Soil Science Society.Google Scholar
  3. Barrow, N. J. (1970). Comparison of the adsorption of molybdate, sulfate and phosphate by soils. Soil Science, 109, 282–288.CrossRefGoogle Scholar
  4. Buyer, J. S., & Sikora, L. J. (1990). Rhizosphere interactions and siderophores. Plant and Soil, 129, 101–107.CrossRefGoogle Scholar
  5. Halstead, E. H., Barber, S. A., Warncke, D. D., & Bole, J. (1968). Supply of Ca, Sr, Mn and Zn to plant roots. Soil Science Society of America Proceedings, 32, 69–72.CrossRefGoogle Scholar
  6. Kuo, S. (1990). Cadmium buffering capacity and accumulation in Swiss chard in some sludge-amended soils. Soil Science Society of America Journal, 54, 86–91.CrossRefGoogle Scholar
  7. Lavy, T. L., & Barber, S. A. (1964). Movement of molybdenum in the soil and its effect on availability to the plant. Soil Science Society of America Proceedings, 28, 93–97.CrossRefGoogle Scholar
  8. Marschner, H., & Römheld, V. (1994). Strategies of plants for acquisition of iron. Plant and Soil, 165, 261–274.CrossRefGoogle Scholar
  9. Mattingly, C. E. G., Russell, R. D., & Jephcott, B. M. (1963). Experiments on cumulative dressings of fertilizers on calcareous soils in Southwest England. II. Phosphorus uptake by ryegrass in the green house. Journal of the Science of Food and Agriculture, 14, 629–637.CrossRefGoogle Scholar
  10. Mengel, K. (1994). Iron availability in plant tissues—Iron chlorosis on calcavcous soils. Plant and Soil, 165, 275–283.CrossRefGoogle Scholar
  11. Nair, K. P. P., & Babu, G. R. (1975). Zinc–phosphorus–iron interaction studies in maize. Plant and Soil, 42, 517–536.CrossRefGoogle Scholar
  12. O’Connor, G. A., Lindsay, W. L., & Olsen, S. R. (1971). Diffusion of iron and iron chelates in soil. Soil Science Society of America Proceedings, 35, 407–410.CrossRefGoogle Scholar
  13. Page, A. L., Logan, T. J., & Ryan, J. A. (1987). Land application of sludge—Food chain implications. Chelsea: Lewis Publication.Google Scholar
  14. Sulaiman, W., & Kay, B. D. (1972). Measurement of the diffusion coefficient of boron in soil using a single cell technique. Soil Science Society of America Proceedings, 36, 746–752.CrossRefGoogle Scholar
  15. Yang, J. E., & Skogley, E. O. (1989). Influence of copper or cadmium on soil potassium availability properties. Soil Science Society of America Journal, 53, 1019–1023.CrossRefGoogle Scholar
  16. Yang, J. E., & Skogley, E. O. (1990). Copper and cadmium effects on potassium adsorption and buffering. Soil Science Society of America Journal, 54, 739–744.CrossRefGoogle Scholar
  17. Yang, X., Römheld, V., & Marschner, H. (1994). Effect of bicarbonate on root growth and accumulation of organic acids in Zn-inefficient and Zn-efficient rice cultivars (Oryza sativa L.). Plant and Soil: An International Journal on Plant-Soil Relationships, 164, 1–7.CrossRefGoogle Scholar

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Kodoth Prabhakaran Nair
    • 1
  1. 1.International Agricultural Scientistc/o Mavila PankajakshyCalicutIndia

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