Delving sand over clay soils has been a widespread activity in the South East for many years.

Recent research is showing that the results of delving can vary markedly depending on method and soil type. This research indicates that most delving operations could be significantly improved, with one trial indicating that if the delving method was improved, an increase in pasture growth of 30 to 40% may be achievable.

The initial focus of delving has been to overcome non-wetting problems in sandy soils. However, changes in sub-soil nutrition and structure may provide an even greater benefit to plant growth. This may have implications for improving non-sandy soils that have limitations relating to drainage or soil hardness.

A sandy soils clay delving field day will be held on the 12th of December 2007, 1pm – 4pm, to discuss what to look for when considering delving, including, the principles and pitfalls of delving, and how to calculate gypsum requirements for your property. 

The presenters aim to discuss in detail the latest findings of research into the effects of delving on local sandy soils, the potential improvements to root development, soil nutrition, and soil structure through delving.
 
The event will include:

* A demonstration of a commercial delving machine that is available to South East farmers.

* A demonstration and discussion to investigate the differences and effectiveness of delving at different spacing’s.

* Speaking with Tim Dunstan the demonstrating delving operator.

* Discussion with soil experts and with farmers who have experience in delving.

* An afternoon tea at Mr Ashley Boddington’s property, including cool drinks, locally baked goodies, a selection of BBQ meats, and some refreshing Beers, to accompany the Barbie.

Both Glenn Bailey from Rural Solutions SA, and Roger Groocock, a local farmer and delving expert will be presenting observations and ideas. 

For more information on attending this Clay Delving Field Day contact Rachel Bailey at Struan House by the 3rd December on (08) 8762 9100.

AUTHOR: Rachel Bailey, Land Management Consultant, Rural Solutions SA

CONTACT: Rachel Bailey, Rural Solutions SA - Struan House, Telephone 8762 9100