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Cutting high can improve harvest yields
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Preliminary results from a GRDC-funded project by Farmlink and CSIRO show that harvesting crops at a high stubble height can increase yield and harvesting speed compared with cutting low and spreading trash... Test strips in a wheat paddock were harvested with a John Deere 9770 STS combine with a 9m front and PowerCast tailboard either as high as possible, where standing stubble was up to 60 centimetres (high), or at about 15cm (low), and straw chopped and spread across the width of the header... In recent trials in New South Wales, cutting stubble at a high height (60cm) during harvest resulted in increased plant emergence the following year compared to stubble that was cut lower...
GRDC 2014 Research Summaries
GRDC Final Reports