The soybean area in southern NSW from the Lachlan Valley, to Murray Valley is expanding, and now accounts for more than half of the NSW soybean crop. New varieties with earlier maturity and higher yields have led the way for this expansion. Time of sowing trials have been conducted at Leeton Field Station (Latitude: 34.60 °S, Longitude: 146.40 °E) during the recent season to test the response of new and unreleased varieties to a range of early and late sowing dates. Plant populations effect on yield and quality were also tested. Grain yields, maturities, protein and lodging were some of the main variables evaluated. Sowing within certain windows and timely management were found to be the key to good yields and quality. Population had some effects but were not the major driver to grain yields once populations reached a critical base line. There are huge and increasing opportunities for Australian soybean growers within the culinary soybean and stockfeed markets.