Neil Fettell (Industry ) Ian Menz (Uni of New England)
2009 - 2010
Central West Farming Systems
To measure the impact of grazing within cropping systems on soil properties, water dynamics and crop yield.
Grazing livestock can compact surface soil and reduce infiltration rates, but their biggest impact on fallow efficiency is through stubble removal.
Stubble improves summer fallow efficiency primarily by increasing infiltration; it slows but does not stop evaporation, and this is only beneficial where rainfall events occur close together or if it aids crop establishment.
Despite high rainfall during the 2009-10 fallow period at Condobolin, there was little response in soil water storage to the grazing and stubble treatments.
Wheat yield in 2010 was reduced by very heavy grazing but not by moderate (more typical) grazing.
Lead research organisation
Central West Farming Systems
Host research organisation
Trial funding source
Assistance from the staff of the Research Station and from James Hunt and Tony Swan of CSIRO is gratefully acknowledged.
Trial source data and summary not available Check the trial report PDF for trial results.
Derived climate information
No observed climate data available for this trial. Derived climate data is determined from trial site location and national weather sources.
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.
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