Incorporating Lime In Order To Ameliorate Subsoil Acidity Faster

GRDC - Chad Reynolds, Wayne Parker, Department of Primary Industries and Regional Development

Type: Research Paper
Knowledge level: Advanced

Farm Table says:

The authors of this paper note in the conclusion: “any growers are interested in the benefit of different tillage methods for amelioration of soil compaction, water repellence and weed control. The significant influence on crop yield from the different tillage methods used in the first year at Carnamah is most likely due to the tillage ameliorating other soil constraints. This provides an ideal time to spread a significant amount of lime on the surface prior to tillage to increase subsoil pH at a faster rate than surface applied lime”.   Please access the full paper via the link below if this research interests you.

The take home messages from this GRDC funded research are below. Please access the full paper via the link below for methodology, references, acknowledgements and discussion.

Key messages from the paper include:

  • Mechanical lime incorporation, using tillage implements suitable for the soil type, enables subsoil acidity to be improved at a faster rate than simply surface application.
  • Tillage also addresses other soil constraints and improves crop yield, particularly in the first year on deep sands in medium to high rainfall areas.
  • In low rainfall areas on gravel soil and red loam the best return on investment was lime only.

2018 - Australia - GRDC - Chad Reynolds, Wayne Parker, Department of Primary Industries and Regional Development
Read ArticleSave For Later