Is manganese deficiency a problem on acid soils?


Research organisaton

Trial details

Researcher(s) A Richards and R Merry
Year(s) 1988
Contributor South Australian Research and Development Institute
Trial location(s) Site 2, Adelaide, SA
Is manganese deficiency a problem on acid soils? locations

To use field and glasshouse experiments to explore the relationship between soil pH and manganese availability.

Key messages
  • Three field sites were sown with grass clover pasture and limed and 11 rates.
  • Soils were also collected from lime treatments incubated for 2 months and then used to grow clover in the glasshouse.
  • Increasing soil pH by liming decreased availability of manganese at all sites and in the glasshouse experiment.
  • In the glasshouse experiment yields decreased on all soils at the higher lime rates.
  • Diagnosis of manganese deficiency in sub clover is confounded by lack of a reliable critical value.
  • If 20 mg/kg is taken as a critical concentration fulfilled run clover and flowering 2 of the experimental sites are nearing manganese deficiency at moderate line rates.
  • Calcium chloride extractable manganese determined in the pot soils correlated well with planned manganese in the youngest open leaf.
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 Clover
Treatment type(s)
  • Fertiliser
Trial type Experimental
Trial design Unknown

Adelaide 1988

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


Trial report and links

No trial reports or attachments found

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Trial last modified: 10-06-2019 12:08pm AEST