EVALUATION OF THE RELATIONSHIP BETWEEN SATURATED HYDRAULIC CONDUCTIVITY (KSAT) AND SOME SOIL ROUTINE PARAMETERS OF THE DIFFERENT SOIL TYPE AT AGR 305, FACULTY OF AGRICULTURE, IN UNIBEN

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ABSTRACT

The saturated hydraulic conductivity in this work was determined using its relationship with other soil parameters. A soil survey process was used to determine the Ksat of two mapping unit found in the site. Each mapping unit was represented with a pedon from which soils were collected using a soil auger and core sampler. Ksat was determined in the laboratory using the constant head method, the primary objective of this study was to evaluate the relationship between saturated hydraulic conductivity and other soil routine properties of soils found at the AGR 305 Farm to see if a prediction equation could be derived and used in the determination of saturated hydraulic conductivity in soils with similar properties. The result showed that the study site in mapping unit one and mapping unit two have parameters that correlated differently. In mapping unit one, it was observed that phosphorus (0.736), CEC (0.879), Base saturation (0.831), clay(0.726) correlated postively while sand (-0.766), aggregate stability (-0.614) correlated negatively and was used to determine the saturated hydraulic conductivity of that mapping unit. But in mapping unit two, ph(-0.858), organic carbon (-0.884), organic matter (-0.770), total nitrogen (-0.771) correlated negatively while bulk density (0.851) correlated positively and was used to determine the saturated hydraulic conductivity for that soil type.

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