National Reactive Phosphate Rock Project - aims, experimental approach and site characteristics

P.G. Simpson, P.W.G. Sale, G. Hepworth, M.A. Gilbert, G.J. Blair, D.L. Garden, P.R. Dann, L. Hamilton, J. Stewart, J. Hunter, J.W.D. Cayley, G.N. Ward, D. Johnson, D.C. Lewis, N.K. Fleming, M.D.A. Bolland, Robert Gilkes, M.J. Mclaughlin

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)


    Field-based cutting trials, which formed part of the National Reactive Phosphate Rock Project, were established across Australia in a range of environments to evaluate the agronomic effectiveness of 5 phosphate rocks, and 1 partially acidulated phosphate rock, relative to either single superphosphate or triple superphosphate. The phosphate rocks differed in reactivity. Sechura (Bayovar) and North Carolina phosphate rocks were highly reactive (>70% solubility in 2% formic acid), whilst Khouribja (Moroccan) and Hamrawein (Egypt) phosphate rock were moderately reactive. Duchess phosphate rock from Queensland was relatively unreactive (
    Original languageEnglish
    Pages (from-to)885-904
    JournalCrop and Pasture Science
    Publication statusPublished - 1997


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