To determine the effect of sowing rate, nitrogen fertiliser rate and timing on wheat and barley crop establishment, tiller production, head counts at harvest, grain yield and grain quality.
Key messages
Delaying post sowing applications of nitrogen (92 kg/ha N) to the flag leaf stage for both Kellalac and MacKellar at the Gnarwarre site, resulted in the best grain yield and grain quality.
Application of nitrogen (35 kg/ha N) to barley at the early jointing stage (GS32), gave the best grain yield and quality at Gnarwarre.
Late nitrogen applications appeared to result in more flower sites (florets) filling with grain for both wheat and barley.
For further conclusions please see the attached trial report.
Lead research organisation
N/A
Host research organisation
N/A
Trial funding source
GRDC
Related program
N/A
Acknowledgments
N/A
Other trial partners
Not specified
Method
Crop types
Cereal (Grain): WheatCereal (Grain): Barley
Treatment type(s)
Fertiliser : Rate
Sowing : Rate
Trial type
Trial design
Gnarwarre 2002 Wheat
Sow date
6 June 2002
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Gnarwarre 2002 Barley
Sow date
Not specified
Harvest date
Not specified
Plot size
Not specified
Plot replication
Not specified
Trial source data and summary not available Check the trial
report PDF for trial results.
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.
Gnarwarre VIC
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.
