Tactical use of nitrogen in canola to manage risk and include break crops in northern Wimmera
Time by rate of N for canola
IPNI-2012-AUS-12
Nitrogen fertiliser is often the single biggest variable cost to canola growers in the northern Wimmera. Throughout the drought, canola was commonly dropped from the rotation in the region as it was seen as a risky crop. To counter some of this risk, some growers changed from pre-drilling all nitrogen fertiliser to splitting or deferring all nitrogen fertiliser applications. Read more
Articles
18 Feb 2012 | Trial Final Report |
28 Jan 2012 | Background, Site Description and Methods Used |
28 Jan 2012 | Results |
28 Jan 2012 | Conclusions and Summary |
13 Sep 2011 | Wallup Site September 11, 2011 |
09 Sep 2011 | Wallup Ag Group Field Days |
02 Sep 2011 | Wallup Ag Group Field Day |
10 Aug 2011 | Crop emergence and early growth |
10 Aug 2011 | Top Dressing Time |
10 Aug 2011 | Sowing the Trials |
Interpretive Summary
2011 | A trial was undertaken to determine if N rates for canola can be reduced in the Wimmera without loss of yield. It also aimed to determine how late N can be topdressed. There was no response to a low rate of N, while 50 kg N/ha when applied at or near sowing gave a 54% yield increase, and 100 kg N/ha application raised yields a further 14%. Nitrogen rate is therefore very important, but timing—when applied even up until early flowering—had little effect. |
Updates & Reports
2013 | 2013 Annual Report |
2012 | Project Description |
Project Leader
Felicity Pritchard, PACE Consulting
Project Cooperators
None
IPNI Staff
Location
Oceania \ Australia and New Zealand \ AUS \ Victoria \ Wimmera
Topics
4r rate, 4r time, best management practices, nutrient management