Aglime Fertiliser

Aglime Fertiliser

Economic returns from monitoring and remediation of acid soils with lime application - Case Study

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Courtesy of Aglime Fertiliser

A long term soil acidity monitoring study was conducted in the Gabby Quoi Quoi catchment located in the central agricultural region of Western Australia, measuring change in soil pH at GIS located sample points in 1999 and 2006.

Of the 300 sites sampled, 75% of the topsoil and 85% of the midsoil sampled in 1999 had pH values < 5.0, with 15% of these soils having a pH value of < 4.0. Liming recommendations were provided to growers, and after resampling seven years later an overall increase in soil pH was measured, with approximately 15% less sites recording a pH < 5.0 of of soils and no samples found to be < pH 4.0.

Grain yield in limed paddocks was found to be on average 6-7% higher than in unlimed paddocks, though recorded significantly higher yield in drier seasons.

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