Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 4228 IREC Farmers' Newsletter No. 196 — Summer 2016 OPTIMISING NITROGEN FOR IRRIGATED CANOLA Canola at the seedling stage at the Coleambally irrigated canola experiment in 2015. l  During 2015, the ‘target yields’ project investigated matching nitrogen (N) fertiliser application to water allocation to obtain an optimum canola grain yield. l  With a water budget sufficient for only one spring irrigation and a yield target of 3.0 t/ha, a split application of applied nitrogen totalling 200 kg N/ ha gave the highest yield — with 75% of applied nitrogen at sowing and 25% at visible bud. l  Increasing the nitrogen application above 200 kg N/ha, without increasing the water budget, resulted in a lower grain yield, lower oil content and increased lodging damage. l  Grain yield averaged 2.88 t/ha across all treatments. The three highest yielding varieties were Hyola 575CL, Diamond and Hyola 577. The results of a canola trial at Coleambally during 2015 showed that increased nitrogen rates must be matched with increased water application to achieve yield gains. Tony Napier, Daniel Johnston, Glenn Morris, Cynthia Podmore and Neroli Graham NSW Department of Primary Industries THE second year of irrigated canola trials as part of the Southern irrigated cereal and canola varieties achieving target yields project was conducted in 2015. The Autumn 2016 edition of this newsletter (No. 194) reported on the results from the variety, plant density and time of sowing experiment for canola. An irrigated canola experiment was also conducted in 2015 to evaluate the effect of nitrogen rate and nitrogen timing on yield and quality. The experiment The irrigated canola experiment was conducted on Ken and Wendy Brain’s property at Coleambally to evaluate the effect of variety and nitrogen interactions on canola grain yield, grain quality (oil content) and crop lodging. QUICK TAKE