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Catalogue: GRDC Publications
" Goondiwindi GRDC Grains Research Update Day 1 - Tuesday 4 th March Time Topic Speaker (s) 10:00 AM James Clark (Chair Northern Welcome Panel GRDC) 10:10 AM General plenary (Supported by North West Local Land Services) 10:10 AM 10:40 AM.. Overall, both models are acceptable for modelling soil evaporation over a range of soils and seasons provided accurate soil physical properties and starting water states are known... Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)...
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Catalogue: GRDC Media
"Reports commissioned by the Grains Research and Development Corporation (GRDC) have found that losses would be much higher without the disease control measures used by growers," GRDC plant health senior manager Rohan Rainbow said... "The reports show that one single disease - blackleg in canola - has the potential to cause national losses of $331 million - but the actual cost is much reduced at $77 million by using current controls.".. Dr Rainbow said the figures in the reports reflected the achievements made in researching, developing and implementing disease controls in the Australian pulse and oilseed industries...
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Catalogue: GRDC Publications
GRDC Grains Research Update Goondiwindi, March 2014 as yields increase, i.e. the bug threshold for a 4t/ha soybean crop is twice that for a 2t/ha crop (Fig. 2), and similarly for mungbeans - see comparison between 1t/ha and 2t/ha crops (Fig. 3)... In summary, action thresholds for edible soybeans and mungbeans are set for bug populations predicted to damage 2% and 1.4% of seeds respectively... GRDC Grains Research Update Goondiwindi, March 2014 rule of thumb, aim to sample 5 widely-separated sites throughout a crop, with at least 4 x 1 m samples per site...
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Catalogue: GRDC Updates
Taking the angst out of thresholds in the computer age.. Podsucking bug thresholds are based on seed quality, and are influenced by a multitude of factors, including bug species, bug stage, yield, mean seed weight, time to harvest, and for crushing soybeans; crop value and cost of control... Given the 4-way interaction of cost of control, crop value, yield and mean seed weight in crushing soybean thresholds, the only way to determine bug thresholds is with the new downloadable threshold calculator...
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Catalogue: Ground Cover
For example, in the 1990s a Victorian Mallee dryland farm typically invested $300,000 to generate income of $400,000... In 2016 it is expected that investment will be $900,000 to produce income of $1 million (see Ground Cover , May-June 2015 )... By having MPCI over this nine-year period, Farm 1 has increased income by $156,000 after allowing for premium costs...
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Catalogue: GRDC Media
Midge management made easier.. Author : Sarah Jeffrey, Northern growers and agronomists will be able to better manage the economic cost of controlling midge in sorghum crops this season with the help of a new online threshold calculator, developed by the Department of Agriculture Fisheries and Forestry (DAFF) entomology team... The calculator helps determine the economics of applying an insecticide, taking into account the midge resistance (MR) rating of the variety, row spacing, number of midge in the field as determined by the grower or consultant, crop value, cost of control and residual life of the chosen insecticide...
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