Trial details
Researcher(s)
N/A
Year(s)
2005 - 2008
Contributor
Hart Field Site Group
Trial location(s)
Hart, SA
Aims
To assess the financial consequences of changing farming systems and inputs, specifically investigating the impact of changing break crop type and reduced fertiliser inputs on subsequent wheat yields and longer term profitability.
Key messages
In poorer seasons there is no positive economic reward for high nitrogen fertiliser inputs.
Oats and vetch for either grazing or hay consistently provided positive gross margins.
Wheat crops which followed a chemical fallow provided the best gross margin in both trials.
Aim to maximise profits, not necessarily yields.
Lead research organisation
Hart Field Site Group
Host research organisation
N/A
Related program
N/A
Acknowledgments
Thanks to Mike Krause.
Other trial partners
Not specified
Method
Crop types
Hay: Vetch
Grain Legume: Field peas
Oilseed: Canola
Cereal (Grain): Wheat
Forage: Oats
Cereal (Grain): Barley
Treatment type(s)
Fallow
Farm operations : Economics
Trial type
Experimental
Trial design
Replicated
Hart 2005 Vetch
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2005 Field peas
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2005 Canola
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2005 Wheat
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2005 Oats
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2005 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Vetch
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Field peas
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Canola
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Wheat
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Oats
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2006 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Vetch
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Field peas
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Canola
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Wheat
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Oats
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2007 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Vetch
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Field peas
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Canola
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Wheat
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Oats
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Hart 2008 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Trial source data and summary not available
Observed trial site soil information
Soil conditions
Trial site
Soil texture
Hart, SA
Not specified
Derived trial site soil information
Average amount of water stored in the soil profile during the year, estimated by the
OzWALD model-data fusion system.
Year
Hart SA
2008
2007
2006
2005
2004
2003
2002
2001
2000
Climate
Derived climate information
No observed climate data available for this trial.
Hart SA
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.
Trial report and links
2005 trial report
