Thesis / Dissertation

An Investigation of the Role of Organic Amendments on the Availability of Phosphorus in an Acidic Soil

MD Shahinur Rahman, Anthony Weatherley (ed.)

Published : 2020

Abstract

The recovery of P from organic waste streams (known as organic amendments, OA) is becoming increasingly popular. Besides a source of P, OA have also been reported to increase soil P availability and reduce P adsorption in acidic soil. The main mechanism involves the reduction in the soil P adsorption sites (especially Al and Fe) by the organic anion producing compounds of the OA. Organic anions form organometallic complexes in the soil to reduce P adsorption. The potential representative organic anion producing compounds of the OA are phenolic and carbonyl compounds. The phenolic and carbonyl compounds usually represent the aromatic (such as benzoic, hydroxybenzoic, protocatechuic acids etc)..

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University of Melbourne Researchers