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Catalogue: GRDC Media
Nitrogen losses spotlighted in research.. "Given growers' substantial investment in N fertilisers, there needs to be considerable attention given to factors that affect the efficiency of use of applied N (NUE), with indices such as crop recovery of applied N (kg fertiliser N accumulated in the crop or in the grain/kg N applied) and the agronomic efficiency of N use (kg additional grain produced/kg N applied) used to benchmark NUE," Professor Bell said... "The research also found that avoiding unnecessarily high N rates, delaying or splitting N fertiliser so that peak N availability coincides with peak crop N demand and relying on residual N from legume rotations all significantly reduced gaseous N losses from dryland sorghum, although the effectiveness of any management strategy varied with seasonal conditions," Professor Bell said...
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Catalogue: GRDC Updates
2. Risk vs return of a summer crop strategy Gain an appreciation of the risk vs return of a summer crop strategy... Finally be disciplined and ensure that you tick all the boxes in terms of management to maximise the rotational and financial outcomes from your crop selection decisions... Greg Rummery Greg Rummery Consulting Ph: 0428 259 535 Email: greg@grconsulting.net.au < Keep browsing 0 Responses to Summer crop options in western cropping environments..
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Catalogue: GRDC Publications
We in the north are still working out where and how best to use P in our fertiliser programs... The representation for different crop species, soil types and seasons is somewhat limited... GRDC Grains Research Update Goondiwindi, March 2014 Figure 3...
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Catalogue: Ground Cover
Demonstration trial evaluates crop water use.. Trial coordinator Julie Ferguson, from Queensland Primary Industries (QPI), says two new varieties being developed by CSIRO are also part of the trial, providing growers with a preview of advanced breeding lines... The QPI water-use efficiency team has been monitoring the site with an 'Enviroscan' probe and will develop crop coefficients from water use information throughout the growing season...
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Catalogue: GRDC Updates
When choosing varieties, consider long term yield and protein results for your region, disease resistance/tolerance packages and target grades... In 2013 variety choice played a significant role in final grain yield and grain protein concentration, which influenced the capacity to achieve APH... Across-site analysis was conducted to determine the contribution of trial factors (trial site, nitrogen rate and variety) to grain yield, grain protein concentration and grain nitrogen yield across the 2013 trials (Table 1)...
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Catalogue: GRDC Updates (North)
Quirindi Grains Research Update Nutrition on black soil.. Grains Research Update - Quirindi August 2002 there is drought prior to flowering and a low number of kernels are set then the kernels which are produced will tend to be larger... In summary controlled traffic and conservation tillage will assist in protecting the surface of the soil and will maximise the activity of soil animals, increasing the infiltration and the water holding capacity of the soil...
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Catalogue: GRDC Updates (South)
Quirindi Grains Research Update Nutrition on black soil.. Grains Research Update - Quirindi August 2002 there is drought prior to flowering and a low number of kernels are set then the kernels which are produced will tend to be larger... In summary controlled traffic and conservation tillage will assist in protecting the surface of the soil and will maximise the activity of soil animals, increasing the infiltration and the water holding capacity of the soil...
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Catalogue: GRDC Final Reports
The occurrence of high levels of salts, sodium and chlorides (Cl) in the northern grains region subsoils effectively reduces rooting depths, increases osmotic potential and chloride toxicity, and reduces the crop water use from the soil profile... The Decision Tree and toolkit developed in this project have become essential components of identifying and managing subsoil constraints (SSC) for advisers and growers... More recent research was carried out in project DNR00008 Advanced Techniques for Managing Subsoil Constraints...
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Catalogue: Ground Cover
Measurements are expressed as millimetres of plant-available water per metre of soil profile, for example, 150mm/m, or as a total for the soil that takes into consideration the depth of the soil profile... When summer weeds are controlled, increases in plant-available water (PAW) at sowing significantly increase the percentage of years when above-average yields are obtained... Many southern and western region paddocks still have quite a few years of glyphosate use before problems arise...
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Catalogue: GRDC Updates
Stay-green in wheat has potential to improve yield independently of root traits... Stay-green was measured on a segregating population in 3 environments in 2010, 2011 and 2012.. Dr. Jack (John) Christopher Research Fellow Queensland Alliance for Agricultural and Food Innovation (QAAFI) University of Queensland Ph: 07 4639 8813 Mb: 0434 609 152 Fx: 07 4639 8800 Email: j.christopher@uq.edu.au Website: www.qaafi.uq.edu.au < Keep browsing 0 Responses to Stay green in wheat has potential to improve yield independently of root traits..
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