Are green manure cover crops a viable option to reduce the use of agrochemical in the low rainfall Mallee?

2015
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) N/A
Year(s) 2015
Contributor Central West Farming Systems
Trial location(s) Condobolin, NSW
Are green manure cover crops a viable option to reduce the use of agrochemical in the low rainfall Mallee? locations
Aims

To see whether green manure a viable management option (in terms of maintenance of ground cover and other agronomic benefits) as we know that terminating cover crops will result in 100% seed set control providing that the crop is effectively killed at an appropriate time.

Key messages
  • The nitrogen status of the sites was captured prior to the treatments being implemented as a baseline for the nitrogen impact of the treatments in the second year crop.
  • The groundcover impact of each of the treatments has been assessed in December 2015 and February 2016.
  • The data already indicates that a number of the treatment will not be viable as they resulted in a less than 50 % groundcover which will increase the risk of erosion of Mallee sand to an unacceptable level.
  • At this stage the only viable options that reduce chemical usage are the cutting for hay and the use of a blade plough to terminate the crop and associated weeds.
Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop types Vetch
Oats
Treatment type(s)
  • Crop: Type
Trial type
Trial design

Condobolin 2015 Vetch

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Condobolin 2015 Oats

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Condobolin, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Condobolin, NSW Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Condobolin NSW
2015 217.9mm
2014 206.0mm
2013 206.6mm
2012 243.4mm
2011 179.2mm
2010 185.0mm
2009 73.3mm
2008 90.9mm
2007 80.4mm
2006 119.2mm
2005 154.3mm
2004 155.8mm
2003 154.0mm
2002 162.4mm
2001 230.3mm
2000 300.5mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Condobolin NSW

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Some data on this site is sourced from the Bureau of Meteorology

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 last modified: 25-11-2019 14:37pm AEST