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 4231 IREC Farmers' Newsletter No. 196 — Summer 2016 as increasing nitrogen application. It is estimated that at least an extra 1.0 ML/ha of water and 50 kg/ha of nitrogen needs to be applied when increasing the yield target from 3.0 to 4.0 t/ha. No yield penalty was observed when the applied nitrogen application rate was lowered to 150 kg N/ha. A yield increase of 4.6% was observed when splitting the 200 kg N/ha nitrogen application rate and delaying 25% of the total rate to be applied at the visible bud stage. The overall incidence of lodging in this experiment was low. The most susceptible variety only had a lodging score of less than 3.0. The experiment demonstrated that increasing the applied nitrogen rate above 150 kg N/ha at sowing, increased the incidence of crop lodging. With the low level of lodging, it is unlikely lodging would have had any impact on yield. Acknowledgements This research is part of the Irrigated Cereal and Canola Varieties Achieving Target Yields (DAN00198) project, which is jointly funded by GRDC and NSW Department of Primary Industries. The co-operation of Wendy and Ken Brain for allowing the trial to be conducted on their property is gratefully acknowledged. The support of Gabby Napier and Michael Hately for assistance with trial management, field assessments and data collection is also gratefully acknowledged. Further information Tony Napier Research & Development Agronomist – Southern Cropping Systems M: 0427 201 839 E: [email protected] Daniel Johnston topdressing canola plots with urea in July 2015. The canola experiment with the first few varieties just beginning to flower in July 2015. The experiment (and the surrounding co-operator’s crop) at full flowering in September 2015.