Nicole Dimos (SPAA), Kenton and tracet Angel (Growers) Leighton Wilksch (Landmark), Sean Mason (University , of Adelaide), Sam Trengove (Trengrove Consulting)
|Contributor||Society of Precision Agriculture Australia|
Site 2, Kybunga, SA
To compare the effects of P rates on barley yields across production zones and to assess the effects of P rates on plant and grain P concentrations.
The objective of this GRDC / SPAA funded project is to increase the level of adoption of PA 'beyond guidance' by broadacre farmers. The project specifically aims to increase the level of adoption of variable rate (VR) by growers in the project to 30% by 2013.This goal will be achieved by demonstrating how to use PA tools to growers at a regional level and by increasing the skills of growers and industry in PA to a level where they can then use PA tools in their farming systems to achieve economic, environmental and social benefits.
|Lead research organisation||
Society of Precision Agriculture Australia
|Host research organisation||N/A|
|Trial funding source||GRDC SPA000010|
This project was funded by the Grains Research and Development Corporatio (GRDC).
|Other trial partners||Not specified|
|Trial type||Precision agriculture|
|Trial design||Not applicable|
|Sow rate or Target density||60, 70 and 75kg/ha|
200 ha plot
|Sow date||10 June 2010 10 June 2010|
|Harvest date||Not specified|
|Plot size||Not specified|
|Plot replication||Not specified|
||Grain copper (mg/kg)||Grain manganese (mg/kg)||Grain zinc (mg/kg)||Grain phosphorus (mg/kg)|
|1||█ Zone 1 (Flat) - seed sown @ 60kg/ha with urea @ 30kg/ha||█ MAP @ 0 kg/ha||4.1||17||15||3000|
|2||█ Zone 1 (Flat) - seed sown @ 60kg/ha with urea @ 30kg/ha||█ MAP @ 30 kg/ha||3.5||15||12||3300|
|3||█ Zone 1 (Flat) - seed sown @ 60kg/ha with urea @ 30kg/ha||█ MAP @ 60 kg/ha||3.7||17||13||3300|
|4||█ Zone 2 (Mid) seed sown @ 70kg/ha + urea @ 50kg/ha||█ MAP @ 0 kg/ha||3.9||14||16||2300|
|5||█ Zone 2 (Mid) seed sown @ 70kg/ha + urea @ 50kg/ha||█ MAP @ 30 kg/ha||3.4||13||14||2700|
|6||█ Zone 2 (Mid) seed sown @ 70kg/ha + urea @ 50kg/ha||█ MAP @ 60 kg/ha||4.1||14||16||2400|
|7||█ Zone 3 (Sand Hill) seed sown @ 75kg/ha + urea @ 65kg/ha||█ MAP @ 0 kg/ha||3.1||10||12||2500|
|8||█ Zone 3 (Sand Hill) seed sown @ 75kg/ha + urea @ 65kg/ha||█ MAP @ 30 kg/ha||3.7||13||11||2500|
|9||█ Zone 3 (Sand Hill) seed sown @ 75kg/ha + urea @ 65kg/ha||█ MAP @ 60 kg/ha||3||12||11||2700|
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.