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Evaluation of four zinc fertiliser sources in two soils from the Darling Downs, Queensland

1996

Research organisation
Incitec Pivot Fertilisers

Trial details

Researcher(s) CW Dowling
IB Virgen
Year(s) 1996
Contributor Incitec Pivot Fertilisers
Trial location(s) Toowoomba, QLD
Further information View external link
Evaluation of four zinc fertiliser sources in two soils from the Darling Downs, Queensland locations
Aims

To conduct an evalutation of four zinc fertiliser sources in two soils.

Key messages
  • Dry matter yield, tissue Zn concentration and plant Zn uptake were measured. Co-granulated zinc oxide and MAP (ST-Z) produced the dry matter response similar to zinc sulphate, with zinc oxysulphate and zinc oxide producing similar but lower yields.
  • It is proposed that the difference in effectiveness between STZ (zinc oxide based) and zinc oxide is as a result of a synergistic effect between the close proximity of the P and Zn in each particle rather than any change in chemical composition during manufacture.
  • The mechanism for enhanced Zn uptake with STZ may be a result of root proliferation around P concentrations aiding Zn uptake.
Lead research organisation N/A
Host research organisation Incitec Pivot Fertilisers
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): Wheat
Treatment type(s)
  • Fertiliser : Rate
  • Fertiliser : Type
Trial type Experimental
Trial design Unknown

Toowoomba 1996

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

Zinc was applied at four rates as either zinc sulphate (35% Zn), zinc oxide (83% Zn), zinc oxysulphate (18% Zn) or as granulock STZ (20.4% P, 2.5% Zn).
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Trial report and links

1996 trial report



Trial last modified: 04-11-2025 03:19am AEST