ASHIUMAN ODION TRACEY

The study focused on the characteristics and effects of pluvial flooding on soil quality under oil palm plantation in Ovia North East, Edo State in order to avert soil degradation, loss of nutrents and fertility. Soil samples were collected from two sites within the same area which was then labeled as experiment A (Flooded Soils) and experiment B (Non flooded soils/control) and at depths of 0 – 15 , 15 – 30 and 30 – 45 cm respectively. The soil samples collected were analyzed using standard laboratory procedures. The treatments were non-replicated and the data was analyzed using factorial arrangement in randomized complete block (RCB) design. The result showed that sand and clay particle distribution had the highest value in the non-flooded soils than the flooded soils, silt was higher in the flooded soil. It was only Bulk density (BD) that indicated significant difference (P>0.05).water holding capacity (WHC) and Hydraulic conductivity (K-Sat) value was higher in the flooded soils, there was no significant difference (P>0.05). Porosity value was higher in the non-flooded soils, there was significant difference (P>0.05. The pH and Organic carbon (O.C) value of the flooded soils was higher than the non-flooded soils. Total Nitrogen (T.N) was higher in the non-flooded soils; Its LSD was not significant at 0.05 level of probability. Available phosphorus, Calcium (Ca), Magnesium (Mg) and Sodium (Na) were higher in the flooded soil except Potassium; LSD was not significant at 0.05 level of probability. The LSD of exchangeable acidity (E.A), Effective Cation Exchange Capacity (ECEC) and base percentage was not significant at 0.05 level of probability. Fe, Mn and Zn were higher in the flooded soil, but significant difference (P>0.05) except Zn which is not significant at 0.05 level of probability. It was only Cu was high in the non-flooded soil and LSD indicates no significant difference at P>0.05. From the mean values gotten for SEF and SFI, it was discovered that flooded and non-flooded soil are both fertile and are of good quality. It can be concluded that moderate flooding actually helps to improve the quality of the soil.