EVALUATION OF WATER FROM BOKRO STREAM FOR IRRIGATION AND ITS EFFECT ON SOIL
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Date
2010
Authors
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Journal ISSN
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Publisher
Kwame Nkrumah University of Science and Technology (KNUST)
Abstract
This study focused on evaluating the water quality of the Bokro stream for its suitability for irrigation
purposes. Among the water quality parameters examined were pH, total dissolved solids,
conductivity, dissolved oxygen, hardness, major ions and concentration of some trace metals.
The results revealed that most of the parameters examined were below the FAO limits for irrigation
water. The results also indicated that nutrient concentrations (Sulphate, Nitrate-Nitrogen
and Phosphate-Phosphorus) from the stream were far below the usual ranges in irrigation water.
Based on values calculated for Sodium Adsorption Ratio and electrical conductivity, the water
source could be described as possessing low salinity hazard and therefore no permeability
problems are expected for the soils. In addition, human activities along the banks of the stream
and inflow of untreated domestic sewage from communities in the catchment area of the stream
were found to have great impact on the quality of water from the stream. Water from the stream
will have no adverse effect on the soil when it is use for irrigation.
Description
An article published by Kwame Nkrumah University of Science and Technology (KNUST
Keywords
Bokro stream,, Irrigation,, Salinity hazard,, Self purification,, Waste water
Citation
Journal of Science and Technology, Vol. 30, No. 2 (2010), pp 135