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 4220 IREC Farmers' Newsletter No. 196 — Summer 2016 OVERHEAD IRRIGATION OF SOYBEANS IN SOUTHERN NSW While soybeans are generally grown on flood irrigation layouts, a trial at Finley showed overhead irrigation also to be successful. l  High soybean grain yields can be achieved on a relatively flat layout with overhead irrigation, as demonstrated by a trial in southern NSW where yields of over 4.5 t/ha were achieved. l  Djakal and the breeding line N005A-80 were the highest yielding varieties across all plant densities and row spacings. l  The treatments with a targeted plant density of 40 plants/m2 yielded the highest across all varieties and row spacings. l  At a targeted plant density of 40 plants/m2 , the highest yields were achieved with a 30 cm row spacing. Soybeans in southern NSW generally are grown on raised bed layouts with furrow irrigation. However, trial work suggests overhead irrigation on flat to undulating ground also may be successful. Mark Richards1, Luke Gaynor1, Mathew Dunn² and Alan Boulton² 1 NSW Department of Primary Industries, Wagga Wagga 2 NSW Department of Primary Industries, Yanco A FIELD experiment was conducted in the 2014–15 summer cropping season growing soybeans with overhead irrigation on a relatively flat site in the Finley area. The experiment tested one new breeding line and two commercial varieties at three row spacings and two targeted plant densities. The aim was to examine the effect of treatments on dry matter production, harvest index, grain yield and protein. Details of the trial site are presented in Table 1, and the treatments are described in Table 2. QUICK TAKE