Do all soils with low pH have Aluminium toxicity?
No, the acid dark grey peaty sands on the swan coastal plain and along the south coast that occur in wet or swampy areas contain low levels of aluminium in comparison to mineral soils. Common vegetation in these areas include tea-tree, bottlebrush or kangaroo grass. Lime at rates as high as 2 t/ha and rock phosphate fertilisers are useful in improving the establishment of subterranean clover pastures.
