Zinc–phosphorus interaction in Darling Downs black earths

1974

Research organisaton

Trial details

Researcher(s) D Edwards
Year(s) 1974
Contributor South Australian Research and Development Institute
Trial location(s) Brisbane,
Zinc–phosphorus interaction in Darling Downs black earths locations
Aims

To establish zinc phosphate relations on black earths of the Darling Downs.

Key messages
  • Two pot experiments were conducted to evaluate the response of wheat to 3 rates of zinc sulphate on 3 contrasting black earths.
  • On all 3 soils zinc concentration plant tops increased with application of zinc but declined as the application of phosphorus increased due to dilution from increased plant growth.
  • The results of these experiments suggest that response to zinc fertiliser only occurred on the alkaline soils where the available zinc was less than 1 ppm.
  • No evidence was obtained that phosphorus supply had any effect on the availability of zinc for plant uptake but other experiments indicated that zinc absorption was reduced by increasing phosphate concentrations in solution.
Lead research organisation N/A
Host research organisation N/A
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser: Application Method
Trial type Experimental
Trial design Unknown

Brisbane 1974

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

zinc sulphate

Other trial notes

Edwards D (1974) Zinc – phosphorus interaction in Darling Downs black earths. In Proceedings of the Australian Soil Science Conference. Melbourne, Victoria. (Ed. Anon.) pp. 3.9-3.10.

Trial report and links


No trial reports or attachments found


Trial last modified: 08-10-2019 15:25pm AEST