EVALUATING THE EFFECTIVENESS OF FOUR SELECTED METHODS OF INVESTIGATING SOIL EROSION EFFECT ON SOIL PRODUCTIVITY IN NSUKKA, ENUGU STATE, NIGERIA
ABSTRACT This study was conducted in 2012 at the University of Nigeria, Nsukka Teaching and Research Farm (UNN), and Ekwegbe, both in Nsukka agricultural zone; to evaluate the effectiveness of four selected methods of quantifying erosion effect on soil productivity at Nsukka, southeastern Nigeria. The four methods were (1) desurfacing technique (DT), (2) Neill’s (1983) productivity index, (3) modified productivity index (MPI) and (4) Riquier’s productivity index (RI). Soils were ...
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