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exploitable yield gap

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
The gap between growers' current wheat yields and what they could be achieving has been illustrated for the first time via a new interactive online tool... The gap varies between regions and seasons, but on average over the past 15 years the gap has been: 1.4 t/ha in the western cropping region 1.7 t/ha in the southern cropping region (Victoria, South Australia, Tasmania and southern and central New South Wales) 1.9 t/ha in the northern cropping region (Queensland and northern NSW)... Region National, North, South, West < Keep browsing 0 Responses to Wheat yield gap maps show where gains can be made..
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Catalogue: GRDC Publications
Weed seeds will most likely absorb herbicide if the herbicide is at or below the seed in the soil profile... Triallate needs to be situated at or above the weed seed to be effective... It is c4 u recommended that a preliminary compatibility test (jar d3 e 0 Tordon* ^^ R test) be carried out prior to the use of any tank mix t 20 with AXIAL n Velocity* e1 Please refer to the label of the product being tank c 0 r e mixed for rates and constraints P 0 GS39 GS47 - 49 GS61 - 65 Product labels and usage directions should be followed for the application of any product referred to in this Avena Growth Stage at Application publication...
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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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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 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...
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Catalogue: GRDC Media
Potential exists for Australian grain growers to collectively almost double the nation's dryland wheat production... The gap between growers' current wheat yields and what they could be achieving has been illustrated for the first time via a new interactive online tool... The gap varies between regions and seasons, but on average over the past 15 years the gap has been: 1.4 t/ha in the western cropping region 1.7 t/ha in the southern cropping region (Victoria, South Australia, Tasmania and southern and central New South Wales) 1.9 t/ha in the northern cropping region (Queensland and northern NSW)...
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Catalogue: GRDC Updates
Closing the exploitable yield gap (80% of Yw - Ya) would increase yields by 1.2 t/ha to raise the regional average to 2.9 t/ha... There is a strong correlation (r 2 = 0.72) between Yw and Yg (Figure 5) indicating that across all locations and seasons, the higher the yield potential the higher the yield gap... Average annual values of Ya, Yw, Yg and Y % (figure 7) per SLA show that some SLAs have larger yield gaps than others...
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Catalogue: Ground Cover
CSIRO researcher Dr Zvi Hochman has explored the potential for northern grain growers to increase wheat yields by 1.2 tonnes per hectare using best practice embodying current technologies and varieties suited to individual farming systems... Speaking at the GRDC Grains Research Update in Coonabarabran, New South Wales, Dr Hochman said the key to achieving such a yield lift was using best practice to help achieve water-limited yields, instead of actual yields... To help bridge the yield gap, Dr Hochman advocates tailoring best practice to individual farming systems, with a focus on using the "best-adapted crop varieties and best cropping and land management practices for a given environment"...
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