Performance of zinc seed dressings in replicated field trials


Research organisaton

Trial details

Researcher(s) N Wilhelm
Year(s) 1998
Contributor South Australian Research and Development Institute
Trial location(s) Site 2, Lameroo, SA
Performance of zinc seed dressings in replicated field trials locations

To test the efficacy of different methods for alleviating zinc deficiency.

Key messages
  • Trial sown at Lameroo on a zinc deficient soil, very dry season.
  • Untreated crop was severely zinc deficient.
  • Zinc seed dressings (Teprosyn and Broadacre products) were effective at alleviating zinc deficiency but not as effective as the dressings plus mid season foliar spray.
  • The soil sprays were not very effective, even at double the recommended rate, perhaps because the soil was so dry.
  • Although laboratory experiments had shown that MAP was more effective than DAP fertiliser in terms of zinc availability, no differences were observed in the field experiment.
Lead research organisation N/A
Host research organisation South Australian Research and Development Institute
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified


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

Lameroo 1998

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

zinc sulphate, MAP technitrace

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Trial last modified: 14-06-2019 17:26pm AEST