Researcher(s) | N/A |
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Year(s) | 2014 |
Contributor | Central West Farming Systems |
Trial location(s) |
Gunning Gap, NSW
Lake Cargelligo, NSW Ungarie, NSW |
To Investigate; -The impact of different stubble treatments (burning, cultivation or standing stubble) imposed towards the end of the fallow have on the yield of wheat and barley. -Evaluate any varietal responses within crop spiecies to the impact of the different stubble treatments.
Stubble treatments involving late burning or cultivation resulted in significantly different yields in wheat and barley in 4 to 6 trials conducted at Nyngan, Ungaire, Tullamore, Gunning Gap, Alectown and Lake Cargelligo during 2014. The yield effects were not consistent and these trials could not be used to predict response pre sowing. The effects of stubble treatments observed during 2014 were similar to the effects observed during similar trials in 2013. Variety rankings were not significantly affected by stubble treatments. The best option in terms of yield was to simply grow the variety with the highest potential for the sowing window.
Lead research organisation |
Grains Research and Development Corporation |
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Host research organisation | N/A |
Related program |
Maintaining profitable farming systems with retained stubble |
Acknowledgments |
CWFS would like to acknowledge the support provided by the co- operating farmers,without their in-kind support the trials would not have been possible. The help help from Matt McRae, Walkers Ag N Vet, Forbes at the Gunning Gap site, Greg Brooke, NSW DPI at the Nyngan site and Scott Boyd, GOA, Dubbo at the Tullamore site is also acknowledged. The authors also thank Neil Fettell for his support in compiling this report. |
Other trial partners | Not specified |
Crop type | : N/A |
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Trial type | |
Trial design |
Sow date | Not specified |
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Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Other trial notes |
Cultivation treatment imposed with off set discs. Stubble conditions at 9 April was 100% cover generally about 300mm high with an average load of 4.5 t/ha, ranging from 3.3 to 6.2 t/ha. The amount of standing stubble varied from 15 to 31% of total load. Available N to 120cm across the replicates varied from 168 to 193 kg/ha. 0-10 cm Cowell P values varied from 33 to 53 across the replicates with the 10-30cm varying from 9 to 16. PredictaB tests rated 1 replicate at high risk of crown ro |
Sow date | Not specified |
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Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Other trial notes |
Cultivation treatment imposed with off set discs. Stubble conditions at 9 April was 100% cover generally about 300mm high with an average load of 4.5 t/ha, ranging from 3.3 to 6.2 t/ha. The amount of standing stubble varied from 15 to 31% of total load. Available N to 120cm across the replicates varied from 168 to 193 kg/ha. 0-10 cm Cowell P values varied from 33 to 53 across the replicates with the 10-30cm varying from 9 to 16. PredictaB tests rated 1 replicate at high risk of crown ro |
Sow date | Not specified |
---|---|
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Other trial notes |
Cultivation treatment imposed with off set discs. Stubble conditions at 9 April was 100% cover generally about 300mm high with an average load of 4.5 t/ha, ranging from 3.3 to 6.2 t/ha. The amount of standing stubble varied from 15 to 31% of total load. Available N to 120cm across the replicates varied from 168 to 193 kg/ha. 0-10 cm Cowell P values varied from 33 to 53 across the replicates with the 10-30cm varying from 9 to 16. PredictaB tests rated 1 replicate at high risk of crown ro |
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.