To determine the nutrient loss from stubbles of various crop types following summer rainfall.
Key messages
Rainfall over the summer fallow period will cause nutrient leaching from stubbles.
Stubble crop type determines initial value of stubble and what may be leached due to rainfall.
It is important to consider other loss pathways such as microbial breakdown and volatilisation as well as leaching when calculating stubble nutrient value following the summer fallow period.
Lead research organisation
Birchip Cropping Group
Host research organisation
N/A
Trial funding source
GRDC BW000024
Related program
Maintaining profitable farming systems with retained stubble
Acknowledgments
This research was funded by GRDC as part of the ‘Maintaining profitable farming systems in retained stubble’ project - component 1 (BW000024). Thanks to Therese McBeath and Vadakattu Gupta (CSIRO) for the provision of technical assistance.
No observed climate data available for this trial. Derived climate data is
determined from trial site location and national weather sources.
Birchip VIC
CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location
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.
