Effect of copper and zinc on wheat on newly cleared yellow gravelly sand of the central wheatbelt


Research organisaton

Trial details

Researcher(s) Gartrell &, Glencross
Year(s) 1965
Contributor Department of Agriculture and Food WA
Trial location(s) Kirwin, WA
Effect of copper and zinc on wheat on newly cleared yellow gravelly sand  of the central wheatbelt locations

To determine the rates of copper and zinc required for maximum grain yield of wheat grown on yellow gravelly sand

Key messages
  • Cu increased with Zn or without Zn added to superphosphate.  
  • All Zn levels depressed yield with nil Cu 2.75 & 5.5 Cu levels, particularly 3.3 kg /ha of ZnO application.
  • Combination of Cu Sul at 5.5 kg/ha and nil  kg/ha ZnO or 2.75 kg Cu/ha nil Zn was required for maximum yield.
  • Plain superphosphate out yielded  Aerophos +gypsum suggested  Zn soil was inadequat for oats and or clover.
Lead research organisation Department of Agriculture and Food WA
Host research organisation Department of Agriculture and Food WA
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified


Crop type Wheat
Treatment type(s)
  • Fertiliser
Trial type Experimental
Trial design Replicated

Kirwin 1965

Sow rate or Target density 50 kg wheat /ha,
Sowing machinery

!2 run sowing machine (22.5 cm spacings)

Sow date Not specified
Harvest date Not specified
Plot size 2.2m x 100m
Plot replication 3

180-200 kg Plain super/ha.

4 Copper as Cu sulfate [bluestone] 3 Zn as Zn oxide

Cu sulfate [ 0, 2.75, 5.5, 8.25]

ZnO [0, 1.67, 3.33]

Mo fertiliser basal across all treatments

Factorial combination


Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Kirwin, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Kirwin, WA Sodosol
National soil grid Source
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Kirwin WA


Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Individual Trial Project data and information and OFT metadata are licensed under a Creative Commons Attribution 4.0 International License.
The data and information accessed through OFT may also be subject to Terms of Use specified by the Trial Contributor,
in which case the Terms of Use of a Trial Contributor take precedence over other information provided on OFT.
Trial last modified: 28-05-2019 11:31am AEST