Welderufael, W.A.; Woyessa, Y.E. - In: Agricultural Water Management 96 (2009) 11, pp. 1667-1672
In Ethiopia vertisols cover about 10% of the total land area and is the fourth most important soil used for crop production, accounting for nearly 23% of the total arable land used for crop production. More than half of the vertisols are found in the Central Highlands of Ethiopia, with an...