<b>Letters and Viewpoints</b><br><br>Studies on the Effect of Laundry Effluent on the Physicochemical Properties of Soils in Edo State of Nigeria

Evaluation of Physicochemical Characteristics of Soils in the Flood Disaster Affected Areas of Isoko Region of Delta State, Nigeria

“…The concentrations of phosphorus recorded in this study are almost in the same range with those reported in a similar study [35], but higher than those reported in another study [36] and lower than those documented elsewhere [4,37]. Phosphorous is made available to plants through the weathering of rocks and decay of organic matters which might have resulted from dead organisms consumed by the flood.…”

“…The exchangeable calcium and magnesium levels of the soils varied from (mgkg -1 ) 0.98 to 4.16 with mean value of 1.97±0.31 and from 0.16 to 3.28 with mean value of 1.50±0.27 respectively. The values obtained for calcium are almost in the same range with the values reported in a similar study [27] but lower than those documented in another study [4]. The exchangeable magnesium levels in this study are consistent with those reported elsewhere [4].…”

“…The values obtained for calcium are almost in the same range with the values reported in a similar study [27] but lower than those documented in another study [4]. The exchangeable magnesium levels in this study are consistent with those reported elsewhere [4]. The low levels of these two elements may be associated with increased binding of calcium and magnesium ions to soil macrocolloid, thereby reducing availability of these ions in soil solution.…”

“…Exchangeable sodium content varied from (mgkg -1 ) 0.26 to 0.32 with mean value of 0.28±0.004. These values are in the same range with those reported elsewhere [27] but relatively lower than those reported in another related study [4]. The exchangeable sodium percentage (ESP) (Na 100/CEC), which expresses the relative contribution of sodium to overall exchange capacity is important to the problem of soil dispersion.…”

“…Physicochemical properties of soil are complex, often non-linearly related and spatially and temporally dynamic [3]. Although there have been many studies on soil physicochemical properties of soil [4,5,6], there has not been any information on the physical and chemical properties of soils affected by the recent Nigerian flood disaster. The objective of this study therefore was to determine the physicochemical properties of the soil samples from the flood affected soils of the Isoko region of Delta State, Nigeria, in order to assess the impact of the flood on the soil quality.…”