Correction of zinc deficiency in maize on the Darling Downs, Queensland


Research organisatons

Trial details

Researcher(s) O Duncan
Year(s) 1967
Contributor South Australian Research and Development Institute
Trial location(s) Toowoomba, QLD
Correction of zinc deficiency in maize on the Darling Downs, Queensland locations

To test methods for alleviating zinc deficiency in maize.

Key messages
  • Zinc applied as a 0.5% zinc sulphate spray completely corrected symptoms of zinc deficiency in field trials.
  • Copper, boron, magnesium, potassium and phosphorus applied as foliar sprays did not correct deficiency symptoms.
  • Increasing the concentration of zinc sulphate (0.5, 1 and 1.5%) or applying twice did not affect plant response.
  • Some evidence that spraying seven weeks after emergence is too late, the optimum appears to be about five weeks after emergence.
  • Responses were of the order of 24-76% above the control.
Lead research organisation N/A
Host research organisation Queensland Department of Primary Industries
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified


Crop type Maize
Treatment type(s)
  • Fertiliser: Type
  • Fertiliser: Timing
  • Fertiliser: Application
Trial type Experimental
Trial design Unknown

Toowoomba 1967

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

zinc sulphate

Trial report and links

No trial reports or attachments found

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Trial last modified: 10-10-2019 09:42am AEST