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The level of acidity of a soil reflects its chemical and sometimes its biological condition. Changes in acidity mean changes in the availability to plants of some soil elements, and modifications to the biological processes in the soil.
Some elements become more available to plants in acis soils, and in some soils particular elements can reach toxic levels. Other elements can be effected in the opposite way: deficiencies can develop in acid conditions.
It is important to realise, however, that the chemical nature of all soils varies. Beccause of these variations, acidity can affect each soil differently and thus influence plant growth differently.
Porter, W M. and Yeates, J. S.
"The effects on plant growth,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 25
, Article 4.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol25/iss4/4