GRDC Grains Research Update Wagga Wagga 2019
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This page contains update papers presented at the .
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Presented at
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• Of the three principal fungicide modes of action used regularly for broadacre disease control: o Group 11 quinone-outside inhibitors (QoIs) (strobilurins) are at the highest risk of pathogen resistance development, particularly the pathogens responsible for Septoria tritici blotch (STB) in wheat, and spot form of net blotch (SFNB) and powdery mi...
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• Safflower varieties have been bred to produce super high oleic oil which provides superior thermal properties and functionality, and therefore, many applications are available for its use in the industrial oils market including bio-lubricants, bioplastics, cosmetics and pharmaceuticals....
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• Phosphorus (P) stratification can impact on the critical P requirements of grain crops. In northern NSW and Queensland placing P at 20cm below the soil surface resulted in significant grain yield responses (~13% increase in wheat) (Bell et al., 2016). These findings are worth further consideration in other regions of the Australian grain belt par...
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• Ensure canola variety and sowing date are matched to achieve an optimal flowering period. • Manage crop to ensure sufficient biomass is produced to support the yield target. • Early-sown (early April), slow hybrid varieties can perform well in dry seasons. • Deeper rooting to access stored water explains part of the advantage shown by early-sown ...
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• Fertiliser savings after drought or failed crop are possible with phosphorus (P) where there has been an extensive P fertiliser history and Colwell P values are at or above crop critical requirements. As a guide, one third of average crop P replacement can be applied down to a base level of 3-4kg P/ha. • Savings in nitrogen (N) are likely to be ...
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• Resistance to pre-emergent herbicides in annual ryegrass is increasing and the resistance patterns are complex. • Mixtures of pre-emergent herbicides can help manage resistant annual ryegrass populations when coupled with seed set control tactics. • Resistance to 2,4-D in broadleaf weeds is increasing. Low level resistance is easy to control, but...
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• The early results of this project showed great potential in improving soil structure and crop productivity in sodic subsoils using deep placement of organic and inorganic amendments. The increases resulted from improvement in the physical and chemical properties of the clay soil volume around the rip line containing the organic and inorganic amen...
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