GRDC Grains Research Update Karoonda 2018
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Calculating plant available water content (PAWC) can be challenging and it can vary from year to year depending on crop growth. Normalised difference vegetation index (NDVI) imagery is starting to give a good indication of evapotranspiration change across a field. New sensors, such as canopy temperature and 10m towers for inversion monitoring, are ...
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Fungal pathogens and viruses survive between crops on infected stubble, seed and or directly in the soil. General crop management to minimise disease risk includes managing crop rotations, volunteer plants, fungicide seed dressings, seed testing for virus infection. and replace infected seed and use of foliar fungicides where appropriate and econom...
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Identify the specific limitations of your sand areas on your farm to understand what issues you need to resolve and the most appropriate management strategies to target. Techniques that break compaction and incorporate nutrition and organic matter are successful at ameliorating sands and improving yields for the longer term. Use high nitrogen ferti...
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Effective snail baiting requires applying baits at the right time and at sufficient pellet density to ensure good encounter rates. Therefore bait in autumn as soon as snails become active and before they lay eggs, check spreader calibration, apply an adequate rate and select an appropriate product for the field conditions....
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Annual ryegrass with resistance to the Group D, J and K pre-emergent herbicides will make management in cereals difficult. Indian hedge mustard populations have resistance to Group B, C, F and I herbicides, greatly reducing control options in break crops. Crop competition coupled with pre-emergent herbicides can be an effective management option....
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