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The relative value of water-soluble and ammonium-citrate-soluble phosphorus for wheat production

Published online by Cambridge University Press:  27 March 2009

B. Palmer  and
R. S. Jessop
B. Palmer
Affiliation:
Department of Agriculture, Victoria, Australia
R. S. Jessop
Affiliation:
Department of Agronomy and Soil Science, University of New England, Armidale, Australia
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Extract

Wheat production in Australia relies heavily on superphosphate to maintain maximum grain yields. The current rock-phosphate supplies for superphosphate manufacture are derived from Nauru and Christmas Island in the Pacific Ocean; these supplies are anticipated to last only for the next 10–20 years. The supplies of ‘A’ grade ore (apatite) which can be used directly for superphosphate production are greatly overshadowed by large amounts of lower grade rock phosphate which is high in total phosphate but low in apatite. This material is termed ‘C’ grade rock and, to date, it has found little use in Australian agriculture.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 98 , Issue 2 , April 1982 , pp. 467 - 470
Copyright
Copyright © Cambridge University Press 1982

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References

REFERENCES

Colwell, J. (1963). The estimation of the phosphorus fertilizer requirements of wheat in southern New South Wales by soil analysis. Australian Journal of Experimental Agriculture and Animal Husbandry 3, 190–197.CrossRefGoogle Scholar
Doak, B. W., Gallaher, P. J., Evans, L. & Muller, F. B. (1965). Low temperature calcination of C-grade phosphate from Christmas Island. New Zealand Journal of Agricultural Research 8, 15–29.CrossRefGoogle Scholar
Gilkes, R. J. & Palmer, B. (1979). Calcined Christmas Island C-grade rock phosphate fertilizers: mineralogical properties, reversion and assessment by chemical extraction. Australian Journal of Soil Research 17, 467–481.CrossRefGoogle Scholar
Lipsett, J. & Williams, C. H. (1970). Evaluation of Christmas Island C-grade phosphate as a fertilizer on some soils in southern New South Wales. Australian Journal of Experimental Agriculture and Animal Husbandry 10, 783–789.CrossRefGoogle Scholar
McClelland, V. F. & Price, G. H. (1970). Calcined rock phosphate as fertilizer for cereal crops. Journal of the Australian Institute of Agricultural Science 36 141–142.Google Scholar
Mason, M. G. & Cox, W. J. (1969). Calcinated rock phosphate as fertilizer for pasture and cereal production in Western Australia. Australian Journal of Experimental Agriculture and Animal Husbandry 9, 99–104.CrossRefGoogle Scholar
Palmer, B., Bolland, M. D. A. & Gilkes, R. J. (1979). A re-evaluation of the effectiveness of calcined Christmas Island C-grade rock phosphate. Australian Journal of Experimental Agriculture and Anima 1 Husbandry 19, 605–610.CrossRefGoogle Scholar
Stace, H. C. T., Hubble, G. C, Brewer, R., Northcote, K. H., Sleeman, J. R., Mulcahy, M. J. & Hallsworth, E. G. (1968). A Handbook of Australian Soils, p. 191. Glenside: Rellim Technical Publications.Google Scholar
Terman, G. L. & Allen, S. E. (1967). Response of corn to phosphorus in underacidulated phosphate rock and rock-superphosphate fertilizers. Journal of Agricultural and Food Chemistry 15, 354–358.CrossRefGoogle Scholar