this post was submitted on 13 Sep 2023
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Soil Science

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Krstic et al. (2012) Aluminum in Acid Soils: Chemistry, Toxicity and Impact on Maize Plants, Food Production (drive.google.com)
submitted 1 year ago by Track_Shovel to c/soilscience
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Introduction
Soil acidity is a limiting factor affecting the growth and yield of many crops all over the world. The basic problems concerning chemical properties of more acid soils are, besides acidity itself, the presence of toxic compounds and elements, such as soluble forms of Al, Fe and Mn, nitrites and various toxic organic acids. Aluminium (Al) toxicity is one of the major constraints on crop productivity on acid soils, which occur on up to 40% of the arable lands of the world. Al is the third most abundant element in the earth’s crust and is toxic to plants when solubilised into soil solution at acidic pH values (Kochian, 1995). A total of 3950 million hectares of land is classed as having acidic soil, of which 15% is used for planting of annual and perennial crops (von Uexküll & Mutert, 1995).

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