EFFECTS OF OLIVE MILL WASTEWATER SPREADING ON THE PHYSICAL CHARACTERISTICS OF SOIL

Authors

  • Hamdi Sahraoui Faculté des Sciences de Bizerte, Bizerte
  • Hafedh Jamil Mellouli Institut National de la Recherche Agronomique de Tunisie, Ariana

DOI:

https://doi.org/10.6092/issn.2281-4485/3805

Keywords:

olive mill wastewater (OMW), spreading, physical impacts, water retention

Abstract

The use of olive mill wastewater (OMW) by agricultural spreading constitutes an alternative among the solutions proposed. The experiment was carried out in Sidi Bou Ali (Tunisia), with three treatments, T0, T1 (25 m3/ha) and T2 (50 m3/ha) during four months. By means the physical capillary model for porous media, pF curves were established and the effects of OMW on the soil physical characteristics were studied. It was concluded that the OMW, for the two applied doses, induced a decrease in water retention for all tensions. An increase in saturated state hydraulic conductivity was obtained in a more pronounced manner in the case of topsoil for all dates. These results confirm the migration process of OMW from the topsoil to the underlying horizon. Such soil modifications are already required in order to establish a mulch on the soil surface so as to reduce the evaporation water losses.

References

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Published

2010-12-19

How to Cite

Sahraoui, H., & Mellouli, H. J. (2010). EFFECTS OF OLIVE MILL WASTEWATER SPREADING ON THE PHYSICAL CHARACTERISTICS OF SOIL. EQA - International Journal of Environmental Quality, 5(5), 1–6. https://doi.org/10.6092/issn.2281-4485/3805

Issue

Vol. 5 (2010)

Section

Articles

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Copyright (c) 2010 Hamdi Sahraoui, Hafedh Jamil Mellouli

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