Cereals, Copper fertilizers, Zinc fertilizers, Western Australia
First Page Number
Most light soils with a sandy or gravelly surface are likely to need copper and zinc; heavier clay or loamy soils mostly do not.
Fisher, H M.
"Applying copper and zinc fertilizers to cereals,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 3:
4, Article 16.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol3/iss4/16