indicated that
extractable potassium also increased significantly in the
treatments with TS particularly in RRFWS (64 to 84 mg kg-1)
and accelerated erosion through run off has diminished
extractable potassium level (62 to 46 mg kg-1) in treatments
WOTS since such measures are adopted to minimize soil
erosion and to control soil loss to conserve soil moisture and
soil fertility (Xiao-yan et al., 2004)