Phosphorus gradient due to landscape in variable native pastures

In the high rainfall zone of southeastern Australia the addition of superphosphate fertiliser and subterranean clover (Trifolium subterranean) have been widely used to increase the production of native grasslands. In recent years pasture productivity and the use of superphosphate fertiliser has declined. This paper examines the relationship between soil phosphorus (P) and pH (CaCl2), landscape and species composition