Nicole Dimos (SPAA), Andrew Whitlock (PA), Karen Haigh (FSG, SFS) and Martin peters (FarmingIT)
|Contributor||Society of Precision Agriculture Australia|
Site 7, Lake Bolac, VIC
To understand the benefits of soil pH mapping and its interaction with other soil and crop mapsTo compare various layers of information (pH, elevation, EM-38, yield andsatellite imagery) for understanding paddock variability.
We focussed on measuring paddock variability rather than implementing an actual variable rate trial. Soil pH mapping proved to be a valuable step towards variable rate lime with significant variability found, pH(CaCl2) varying from 4.0 to 7.1 across a 50ha paddock. A variable rate management approach to pH on this paddock would deliver a 75% saving of lime.
|Lead research organisation||
Society of Precision Agriculture Australia
|Host research organisation||N/A|
|Trial funding source||GRDC SPA000010|
|Other trial partners||CSBP Soil Laboratory, Neil Vallance (Grower).|
|Trial type||Precision agriculture|
|Trial design||Not applicable|
|Sow date||5 June 2010 5 June 2010|
|Harvest date||11 February 2011|
|Plot size||Not specified|
|Plot replication||Not specified|
70kg/ha MAP, 50L/ha UAN
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.