To quantify the yield effects of deep ripping, gypsum applicaiton and a new cultivation implement known as a spader.
Key messages
The penetrometer measurements show that the nil treatment at both sites had a harder soil profile in the upper 20 cm at Hannafords (clay loam) and down to 35 cm at Jacobs. The reason the Nil treatment at the site of Hannafords shows lower resistance at depth is because this zone was waterlogged (water perched on the clay layer), showing that the ripping and spading have relieved some of the waterlogging.
Lead research organisation
Rural Solutions SA
Host research organisation
MacKillop Farm Management Group
Related program
N/A
Acknowledgments
Many thanks to the contributors to this project including Peter Hannaford for providing a trial site and a great deal of organisation, Lachie Jacob for providing a trial site and deep ripping the trial sites, Roger Groocock for Spading the trial sites. Plots were harvested by the New Variety Agronomy group of SARDI, based at Struan.
NOTE: Exact trial site locality unknown - Climate data may not be accurate
Frances VIC
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
