Effect of some biological factors on soil variability in the tropics

II. Effect of oil palm tree (Elaeis guinensis Jacq.)


Soil heterogeneity induced by oil palm trees was investigated in the forest zone of western Nigeria. Surface and subsoil samples taken from adjacent to the palm tree showed lower bulk density, higher soil moisture retention, higher organic matter content and nutrient status than the surrounding soil.

Maize plants grown on the palm site soil showed better growth, nutrient status and yield. The palm tree effect on soil productivity could not be blanketed with addition of N, P and K fertilizers because of the effect also of better soil physical conditions. The implication of the palm tree effect on field experimentation in the area was discussed. re]19760712

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  1. 1

    Dancette, C. and Poulain, J. F., Influence of Accacia albida on pedoclimatic factors and crop yields. Afric. Soils 14, 143–182 (1969).

    Google Scholar 

  2. 2

    Gerakis, P. A. and Tsangarakis, C. I., The influence of Accacia Senegal on the fertility of a sand sheet (Goz) soil in Central Sudan. Plant and Soil 33, 81–86 (1970).

    Google Scholar 

  3. 3

    Hedley, D. D. and Kang, B. T., Estimation of plot size and shape for maize field experimentation from uniformity trial on Egbeda soil series. International Institute of Tropical Agriculture, Ibadan, Nigeria (1972). (mineo)

    Google Scholar 

  4. 4

    Irvine, F. R., West African crops. Oxford University Press pp. 24–35 (1969).

  5. 5

    Kang, B. T. and Moormann, F. R., Effect of some biological factors on soil variability in tropics. I. Effect of preclearing vegetation. Plant and Soil 47, 441–449 (1977).

    Google Scholar 

  6. 6

    Ng, Siew Kee, The oil palm, its culture, manuring and utilisation. Int. Potash Inst., Berne, Switzerland, pp. 10–11 (1972).

    Google Scholar 

  7. 7

    Tinker, P. B. H., Changes occurring in the sedimentary soils of southern Nigeria after oil palm plantation establishment. J. West. Afric. Inst. Oil Palm Res. 4, 66–81 (1963).

    Google Scholar 

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Kang, B.T. Effect of some biological factors on soil variability in the tropics. Plant Soil 47, 451–462 (1977). https://doi.org/10.1007/BF00011503

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  • Nigeria
  • Nutrient Status
  • Maize Plant
  • Forest Zone
  • High Organic Matter