Aluminum toxicity is the primary problem limiting agricultural production in acid soils. e reason for this is because aluminum is one of the most prevalent minerals in the Earth’s crust, and high acidity in soil can render aluminum soluble, thereby poisoning the water taken up by the roots. Acid soils occupy 3.95 billion ha (30%) of the world’s ice-free land area (Baligar et al. 1998) comprising both the tropical and temperate belts, and as much as 50% of the world’s potentially arable crops are negatively aected by acid soils (Matsumoto et al. 2008).