Soil-Related Nutritional Problem Areas for Grazing Animals

Abstract

Aluminum is the most abundant metallic element of minerals in soils and the associated environments. It occurs in a series of Al-bearing minerals (e.g., feldspars, micas, chlorites, vermiculites, smectites, kaolinite, halloysite, and gibbsite). It makes up 81, 82, 25, and 4 g kg-1 of igneous, shale, sandstone, and limestone rocks, respectively (Jackson, 1964; Brady, 1974; McLean, 1976).