Soil acidity, Legumes, Nodulation, Nitrogen fixation
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Nitrogen is a basic constituent of protien and is essential to all forms of life. Many agricultural plants are legumes - a group of plants which, in co-operation with specialised soil bacteria, fix their own nitrogen from the air. When the legume dies, the organic matter breaks down anf the nitrogen becomes available to the following crops.
Soil acidity is a major factor limitimg the successful association between legumes and their beneficial soil bacteria in Western Australia.
Howieson, J G. and Ewing, M. A.
"Soil acidity and legume nodulation,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 25
, Article 5.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol25/iss4/5