| Researcher(s) |
Sam Cockayne (SFS) Jon Midwood (SFS) Gary Sheppard (SFS) Mark Steele (SFS) Rohan Wardle (SFS) |
|---|---|
| Year(s) | 2008 |
| Contributor | Southern Farming Systems |
| Trial location(s) |
Dunkeld, VIC
|
This trial compared 10 different nitrogen strategies consisting of a number products, rate and timings to determine the optimal strategy
for the site and season.
Overall, the mean yield of the trial was 6.89t/ha, with the single application treatment of 40kgN/ha (urea) at GS33 achieving the highest yield of 7.18t/ha, or 104% of the site mean. The untreated nitrogen strategy yielded 6.82t/ha, which was the 6th highest yield, suggesting that additional nitrogen in higher rate instances may have caused haying off, as additional nitrogen reduced yield for four of the trial treatments.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
Thanks to Doug MacArthur for providing the land for this trials programme. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow date | 23 May 2008 |
|---|---|
| Harvest date | 6 January 2009 |
| Plot size | 13m x 1.45m |
| Plot replication | Not specified |
| # | Variety |
Treatment 1
|
Protein (%) | Screenings (%) | Grain yield (t/ha) | Test weight (kg/hL) | Retention (%) |
|---|---|---|---|---|---|---|---|
| 1 | █ Capstan | █ Control (Nil N) | 11.6 | 6.3 | 6.82 | 59.8 | 80 |
| 2 | █ Capstan | █ 80 N urea @ GS33; 40 N UAN @ 37 | 13.6 | 6.9 | 6.68 | 60 | 78 |
| 3 | █ Capstan | █ 80 N urea @ GS 33; 40 N urea @ GS 37 | 13.3 | 6.5 | 7.09 | 59.4 | 79 |
| 4 | █ Capstan | █ 80 N urea @ GS 33 | 12.7 | 4.3 | 6.97 | 61.3 | 85 |
| 5 | █ Capstan | █ 40 N urea @ GS33; 80 N urea @ GS37 | 12.7 | 5.9 | 6.74 | 59.9 | 82 |
| 6 | █ Capstan | █ 40 N urea @ GS33; 40 N urea @ GS37 | 12.4 | 5.7 | 7.1 | 61.4 | 85 |
| 7 | █ Capstan | █ 40 N urea @ GS33 | 12 | 5 | 7.18 | 60.7 | 84 |
| 8 | █ Capstan | █ 40 N UAN @ GS33; 40 N UAN @ GS37 | 12.6 | 6 | 6.82 | 59.8 | 80 |
| 9 | █ Capstan | █ 40 N UAN @ GS33 | 11.5 | 5.3 | 6.86 | 60.4 | 83 |
| 10 | █ Capstan | █ 100 N urea @ GS33; 60N urea @ GS37 | 14 | 6.8 | 6.65 | 60.2 | 77 |
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.
