|Author:||Ibrahim, A. ; Agunwamba, J. C. ; Idike, F. I.|
|Book Group Author:||NA|
The effects of re-using waste water effluent from the University of Nigeria, Nsukka wastewater treatment plant on irrigated agricultural soils were investigated. Soil samples from wastewater effluent irrigation areas and from nearby farm lands (control) were collected for laboratory determination of physical and chemical properties. Soils under irrigation with wastewater effluent from Imhoff section of the treatment plant (influent into stabilization pond II) were found to be sandy loam while those under wastewater effluent irrigation from the effluent section of stabilization pond II (effluent from pond II) and the nearby farm lands (control) were both loamy sand. The bulk density and porosity of the irrigated surface soil significantly (P≤0.05) decreased while the field capacity increased. The wastewater significantly increased the organic matter content, the cation exchange capacity (CEC) and the soil infiltration rate. The nutrient elements were increased and sodium adsorption ratio (SAR) decreased. Wastewater effluent irrigation supplements and recycles vital nutrients to the soil and modified the soil texture through the addition of organic matter with subsequent increase in the soil water holding capacity and improvement in its infiltration rates.
|Pages:||60 - 68|
|Journal:||Journal of Sustainable Agriculture and the Environment|
adsorption, agricultural soils, bulk density, calcium,cation exchange capacity, effluents, electrical conductivity, fieldcapacity, infiltration, irrigation, irrigation water, magnesium,nitrogen, phosphorus, porosity, potassium, sandy loam soils, sandysoils, sodium, soil chemical properties, soil density, soil fertility,soil organic matter, soil pH, soil physical properties, soil texture,soil types, soil water constants, waste water, waste water treatmentplants, water holding capacity, water reuse, Nigeria, West Africa,Africa South of Sahara, Africa, Developing Countries, ACP Countries,Commonwealth of Nations, Anglophone Africa, chemical properties of soil,organic matter in soil, physical properties of soil, watering, SoilChemistry and Mineralogy (JJ200), Soil Physics (JJ300), Soil Fertility(JJ600), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Engineering andEquipment (General) (NN000), Human Wastes and Refus