Soil health and nutrient management

Permanent URI for this collectionhttp://elibrary2.sugarresearch.com.au/handle/11079/13842

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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Author: search.filters.author.Reghenzani, JRSubject: search.filters.subject.Acidity

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    Acid sulfate soils in canegrowing regions of northern New South Wales
    (1995) Reghenzani, JR
    Acid 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.