Eche, Nkechi Mary, Emmanuel Nathan Oyema Iwuafor, Ishaku Yo'ila Amapu, and Mary Ann Victoria Bruns. 2021. “Effect of Application of Organic and Mineral Soil Amendments in a Continuous Cropping System for 10 Years on Chemical and Physical Properties of an Alfisol in Northern Guinea Savanna Zone: Experimental Investigation”. Recent Progress in Plant and Soil Research Vol. 3, October, 77-87. https://doi.org/10.9734/bpi/rppsr/v3/1705C.