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

1961, 1964

Research organisation
Queensland Department of Primary Industries

Trial details

Researcher(s) O Duncan
Year(s) 1961, 1964
Contributor Queensland Department of Primary Industries
Trial location(s) Toowoomba, QLD
Further information View external link
Correction of zinc deficiency in maize on the Darling Downs, Queensland locations
Aims

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
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Maize
Treatment type(s)
  • Fertiliser : Rate
  • Fertiliser : Timing
  • Fertiliser : Type
Trial type Experimental
Trial design Replicated

Toowoomba 1961

Sow date Unknown
Harvest date Unknown
Plot size Not specified
Plot replication 2
Plot randomisation Y
Fertiliser

zinc sulphate
Other trial notes

Duncan O (1967) Correction of zinc deficiency in maize on the Darling Downs, Queensland. Queensland Journal of Agricultural and Animal Sciences 24, 293-300.

Toowoomba 1964

Sow date Unknown
Harvest date Unknown
Plot size Not specified
Plot replication 2
Plot randomisation Y
Fertiliser

zinc sulphate
Other trial notes

Duncan O (1967) Correction of zinc deficiency in maize on the Darling Downs, Queensland. Queensland Journal of Agricultural and Animal Sciences 24, 293-300.
Download the trial report to view additional method/treatment information

Trial report and links

1961 trial report



Trial last modified: 05-11-2025 03:34am AEST