Aluminum is one of the most abundant elements on the planet, making up roughly 7% of the Earth’s mass. Aluminum toxicity in our soils is a real problem. Large amounts of nitrogen fertilizers have been applied to our fields, leading to increased soil acidification and potential Al toxicity. Aluminum toxicity occurs in strongly acid soils, plants may also exhibit deficiency symptoms of calcium (Ca), magnesium (Mg), or other nutrients. They might also show symptoms of manganese (Mn) toxicity, which is common when the soil pH is too low. When we experience these soil nutrient imbalances, soil acidification exacerbates the accumulations of toxic aluminum ions.




