Comparison of six phosphate rocks and single superphosphate as phosphate fertilisers for clover-based pasture

New Zealand Journal of Agricultural Research

Volumn 41, Issue 3, 1998, Pages 415-420

  Sinclair, A G ^a,b,c   Johnstone, P D ^a   Watkinson, J H ^b   Smith, L C ^c   Morton, J ^a   Judge, A ^b  

^a INVERMAY AGRICULTURAL CENTRE   (New Zealand)

^b RUAKURA RESEARCH CENTRE   (New Zealand)

^c AGRESEARCH   (New Zealand)

Author keywords

Direct application; DM production; Fertiliser; Herbage P concentration; Olsen P; Pasture; Phosphate; Phosphate rock; PR; Reactive phosphate rock; RPR

Indexed keywords

EID: 0032420708     PISSN: 00288233     EISSN: 11758775     Source Type: Journal    
DOI: 10.1080/00288233.1998.9513326     Document Type: Article

References (10)

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6. Olsen, S. R., Cole, C. W., Watanabe, R, and Dean, L. A., 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate, United States Department of Agriculture circular 939 19
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9. Sinclair, A. G., Dyson, C. B., and Shannon, P. W., 1990. The long-term effectiveness of reactive phosphate rock as a phosphate fertiliser for New Zealand pastures. Proceedings of the New Zealand Grassland Association, 51:101–104.
10. Watkinson, J. H., 1994. A test for phosphate rock reactivity in which solubility and size are combined in a dissolution rate function. Fertilizer research, 39:205–215.