Abstract
The present study was undertaken to investigate the changes in soil physical properties and their effect on water movement under ponded irrigation. Sewage sludge was applied to 10 cm soil depth at rates of 0.25. 75 and 100 Mg-ha-1 to two disturbed soils differing in CaCO3 content. The results showed that cumulative infiltration (1) decreased with an increase in sewage sludge rates. Basic infiltration for slightly calcareous sandy soil was higher than that of moderately calcareous sandy soil, laboratory measurements showed an exponential decrease in saturated hydraulic conductivity and an increase in available water capacity with an increase in sewage sludge rates. For both soils, water diffusivity (D(Q)) decreased with an increase in sewage sludge rates. The (oral) values of slightly calcareous sandy soils were higher than those of moderately calcareous sandy soils.
Keywords
Publication details
- DOI
- 10.24200/jams.vol2iss0pp59-67
- Journal
- Journal of Agricultural and Marine Sciences, 2, 59
- Publisher
- Sultan Qaboos University
- Open access
- Gold open access
- License
- CC BY 4.0
Cite this article
APA 7
AI-Omran, A., AI-Wabel, M., & Shalaby, A. A. (1997). Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils. Journal of Agricultural and Marine Sciences, 2, 59. https://doi.org/10.24200/jams.vol2iss0pp59-67
MLA 9
AI-Omran, A.M., et al. "Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils." Journal of Agricultural and Marine Sciences, vol. 2, 1997, pp. 59. https://doi.org/10.24200/jams.vol2iss0pp59-67.
Chicago (author–date)
AI-Omran, A.M., M.I. AI-Wabel, and A. A. Shalaby. 1997. "Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils." Journal of Agricultural and Marine Sciences 2: 59. https://doi.org/10.24200/jams.vol2iss0pp59-67.
Harvard
AI-Omran, A., AI-Wabel, M. and Shalaby, A. A. (1997) 'Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils', Journal of Agricultural and Marine Sciences, 2, pp. 59. doi:10.24200/jams.vol2iss0pp59-67.
Vancouver
AI-Omran A, AI-Wabel M, Shalaby AA. Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils. Journal of Agricultural and Marine Sciences. 1997;2:59. doi:10.24200/jams.vol2iss0pp59-67
IEEE
A. AI-Omran, M. AI-Wabel, and A. A. Shalaby, "Impact of Sewage Sludge on Water Movement in Calcareous Sandy Soils," Journal of Agricultural and Marine Sciences, vol. 2, pp. 59, 1997, doi: 10.24200/jams.vol2iss0pp59-67.