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late nitrogen application

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
Growers thinking of using late-season nitrogen loading to bolster crop protein should think again, following a detailed crop and economic analysis led by the Northern Grower Alliance (NGA)... A research project led by the NGA, a grower solutions group funded by the Grains Research and Development Corporation (GRDC), conducted trials in 2012 and 2013 to evaluate the impact of late nitrogen strategies on protein accumulation and the likelihood of economic benefit... "The series of 11 trials showed that significant increases in protein can be gained by late nitrogen application, but the level of increase was not sufficient to deliver economic benefits in any trial," NGA chief executive Richard Daniel said...
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Catalogue: GRDC Publications
The economics of chasing protein, improving nitrogen use efficiency and timing... GRDC Grains Research Update Mungindi, March 2014 Contents.. 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 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: GRDC Updates
The nitrogen recovery in grain was calculated for all treatments (yield t/ha x protein % x 1.75)... The data from the trials was inconclusive in determining an optimal growth stage for application although the highest protein result was achieved from application during late head emergence to early milk at seven of the eleven sites... Although early application of additional nitrogen can cause canopy management issues, these results (in years with erratic or low spring rainfall) support the need to get nitrogen on early...
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Catalogue: GRDC Publications
GRDC Grains Research Update Coonabarabran, February 2014 grain protein levels in the untreated were below 12% in all trials... Understanding how the reserves present in more than half of soils release P is important... Soils with <60 mg/kg BSES P may not be able to replenish available P pools easily, and this corresponds with two thirds of those soils investigated in the Queensland study...
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Catalogue: GRDC Media
Growers thinking of using late-season nitrogen loading to bolster crop protein should think again, following a detailed crop and economic analysis led by the Northern Grower Alliance (NGA)... A research project led by the NGA, a grower solutions group funded by the Grains Research and Development Corporation (GRDC), conducted trials in 2012 and 2013 to evaluate the impact of late nitrogen strategies on protein accumulation and the likelihood of economic benefit... "The series of 11 trials showed that significant increases in protein can be gained by late nitrogen application, but the level of increase was not sufficient to deliver economic benefits in any trial," NGA chief executive Richard Daniel said...
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Catalogue: GRDC Publications
GRDC Grains Research Update Coonabarabran, February 2014 most sites achieved those returns within 2 crop seasons after deep P application may at least partly reflect the string of wetter seasonal conditions in recent years, although the results from Jandowae, Capella and Gindie all included dry seasons in at least one of the crops followed... Overall, the performance of the barley grain only varieties showed they are capable of producing around 6 t/ha of dry matter and still yielding between 2.7 and 3.4 t/ha of grain... Overall, the most prevalent virus was BWYV and in some locations more than 90% of symptomatic plants were infected with BWYV (Table 1)...
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Catalogue: GRDC Publications
Classifying soil types and measuring plant available water capacity (PAWC); use of fast processes such as EM38; identification of subsoil constraints; crop ability to access deeper soil water... Overall, the most prevalent virus was BWYV and in some locations more than 90% of symptomatic plants were infected with BWYV (Table 1)... GRDC Grains Research Update Nyngan, February 2014 used a PCR forBeet western yellows virus (BWYV),Bean leaf roll virus (BLRV), Phasey bean virus (PhBV) andSoybean dwarf virus (SbDV) to investigate host range of the virus species from a range of locations (Table 2)...
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