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AuthorReghenzani, JR
Date Accessioned2013-05-22
Date Available2013-05-22
AbstractAcid sulfate subsoils contain iron pyrites (FeS2). Pyrites is stable under anaerobic (saturated) conditions, but when oxidised forms sufuric acid and releases mobile Fe2+ ion. Soil pH can be reduced to as low as 2 and aluminium is released into the soil solution. These conditions can be toxic for plants. Ground water from acid sulfate soils which finds its way to drains and streams, particularly after rainfall following extended dry periods, may kill aquatic life.
AbstractFarmer education programs and advice with regard to laser levelling, shallow drains, soil and drain water analysis and treatment of drainage spoil, will reduce the adverse environmental impact of farming acid sulfate soils. Implementation of a rapid tilration test for total sulfidic acidity of soil is proposed; however, research is required to established criteria for critical levels, sampling intensity and sampling depth.
Part of SeriesBSES Internal Report; 1995 No 731 TE95001
SubjectAcid Sulfate Soils
SubjectEnvironmental Effects
SubjectFish Death
SubjectOxidised Pyrites
SubjectDrainage Spoil
SubjectWater Analysis
SubjectNew south Wales (NSW)
SubjectSoil profile
TitleAcid sulfate soils in canegrowing regions of northern New South Wales

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  • Soil health and nutrient management [107]
    Research outcomes: Soil health is improved with a resulting positive impact on the environment and yield growth. Improved reputation and relationship between industry and environmental groups.

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