J. W. D. Cayley

Development and adoption of productive pastures for sheep in high-rainfall temperate regions of southern Australia.

G. R. Saul, J. W. D. Cayley, A. Kirilov, N. Todorov et autres

Corrigendum to : Effects of phosphorus fertiliser and rate of stocking on the seasonal pasture production of perennial ryegrass-subterranean clover pasture

J. W. D. Cayley, MC Hannah, Gavin Kearney, S. G. Clark

The response of pastures based on Lolium perenne L. and Trifolium subterraneum L. to single superphosphate was assessed at Hamilton, Victoria, by measuring the growth of pastures during winter, spring, and summer over 7 years from 1979 to 1987. The seasons were …

Available phosphorus, sulfur, potassium, and other cations in a long-term grazing experiment in south-western Victoria

J. W. D. Cayley, M. R. McCaskill, Gavin Kearney

Relationships between amounts of superphosphate applied to pasture and stocking rate on available nutrient status were assessed from 1979 to 2000 on a chromosol derived from basalt at Hamilton, Victoria. The pastures were stocked with sheep at low, medium, or high grazing …

Changes in pH and organic carbon were minimal in a long-term field study in the Western District of Victoria

J. W. D. Cayley, M. R. McCaskill, Gavin Kearney

Changes in soil pH from a long-term experiment at Hamilton, Vic., associated with time, fertiliser application, and stocking rate were assessed. The pH was measured in a 1 :5 suspension of soil in water (pHW) from 1980 onwards and in a 1:5 …

High-fertility pastures in south-west Victoria can be economically and environmentally sustainable

J. W. D. Cayley, GR Saul, Mccaskill

Contamination of soil with fluoride by long-term application of superphosphates to pastures and risk to grazing animals

Mike J. McLaughlin, Daniel Stevens, D. G. Keerthisinghe, J. W. D. Cayley et autres

Fluoride (F) is an impurity in phosphatic fertilisers and significant amounts of F will be added to soils with long-term application of phosphatic fertiliser to soil. There is a risk that F concentrations in soil may increase to levels toxic to plants …

Phosphorus fertiliser for beef or sheep pastures - a decision-support package.

J. W. D. Cayley, G. R. Saul, P. M. Schroder

Soil audit of a long-term phosphate experiment in south-western Victoria: total phosphorus, sulfur, nitrogen, and major cations

M. R. McCaskill, J. W. D. Cayley

A nutrient audit was conducted on a long-term grazed fertiliser experiment at Hamilton in south-western Victoria to determine the fate of applied phosphorus (P) and sulfur (S). Single superphosphate had been applied at rates averaging between 1 and 33 kg P/ha.year since …

Profitable Use of Phosphorus Fertiliser for Temperate Pastoral Australia

J. W. D. Cayley, Gavin Kearney

1 Corresponding author ABSTRACT : The phosphorus (P) fertiliser required to maximise profit from spring-lambing fine wool Merinos over a range of stocking rates (SR) at Hamilton, Victoria can be expressed as kg of P/dry sheep equivalent (P/DSE). The P/ha required for …

The long-term influence of superphosphate and stocking rate on the production of spring-lambing Merino sheep in the high rainfall zone of southern Australia

J. W. D. Cayley, Gavin Kearney, GR Saul, C. L. Lescun

The productivity of spring-lambing fine wool Merino sheep grazing pastures sown in 1977 to perennial ryegrass and subterranean clover was assessed from 1989 to 1998. The pastures were fertilised each autumn with single superphosphate at 6 levels, and were stocked at a …

Changes in bicarbonate-extractable phosphorus of a basalt-derived duplex soil associated with applications of superphosphate to pasture grazed by sheep

J. W. D. Cayley, Gavin Kearney

The effect of 3 successive yearly applications of single superphosphate (SSP) to pastures on bicarbonate- extractable soil phosphorus (Olsen P) was measured. The soil was a duplex derived from basalt and the pastures, based on perennial ryegrass and subterranean clover, were continuously …

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Towards a change in status of emergency contraception?

J. W. D. Cayley