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Paddock rotation and history

Catalogue: GRDC Final Reports
The aim of the project was to add value to the Agricultural Production Systems sIMulator (APSIM) tool by improving the underpinning science on which it is based... The ultimate impact of improving APSIM simulation accuracy is greater confidence in the outputs generated by APSIM... Of the eight wheat varieties assessed as part of this project, five of them have been adjusted in response to the phenology trial...
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Catalogue: GRDC Updates
Yield Prophet , using APSIM modelling, simulates soil water, crop water use and N use on a daily basis and provides a risk assessment, through probability, of achieving a target yield.. (i) to compare soil water information provided by soil moisture probes vs. modelled outcomes from APSIM (Yield Prophet ) (ii) to evaluate soil moisture probes vs. modelled outcomes for day to day paddock management decisions.. Soil moisture probes do not provide information on soil/crop N status, and some kind of N budget is still required when deciding on whether the crop needs additional N in relation to how much water the crop has available to it...
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Catalogue: GRDC Updates
In Figure 5, we show soil water measured at various depths using gravimetric methods and EnviroSCAN@" probes at Norwin in Queensland during 2010 - 2012 (Dalgliesh 2013)... The techniques also arise out of the aerospace industries, where the earliest approaches were developed for reducing errors in predictions of missile or spacecraft positions estimated from measurements of speed and direction... The really good news is that methods used in assimilating models and soil moisture probes could be used to improve the quality of the information from the model, and also the quality of information from the probes...
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Catalogue: GRDC Publications
14 BWD00024: Maintaining profitable farming systems with retained stubble in Victoria and Tasmania .................................... The over-arching aim of the project is to improve yield and water-use-efficiency of irrigated wheat production across the Northern Region by developing improved agronomic practices to reduce the incidence of lodging and increase the yield potential of irrigated wheat... Overall, the project will deliver a comprehensive research, communication and extension program that will ensure more effective management of water repellent agricultural soils in WA whilst building capacity for future soils research and development in Western Australia...
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Catalogue: GRDC Updates (South)
Gross margins achieved on-farm for wheat in 2011 may have been lower than shown in Table 2... The gross margin calculations depicted in Figure 5 assumed that canola yielded 50 % of wheat at that site in that year... In comparing while many farm decisions are made intuitive versus logical analytical under the influence of a DSS which provide learning reasoning he suggests the either/or approach to on a topic, they are not necessarily used every time the dichotomies is destructive and goes on to say a decision is made...
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Catalogue: GRDC Updates (South)
Gross margins achieved on-farm for wheat in 2011 may have been lower than shown in Table 2... The gross margin calculations depicted in Figure 5 assumed that canola yielded 50 % of wheat at that site in that year... In comparing while many farm decisions are made intuitive versus logical analytical under the influence of a DSS which provide learning reasoning he suggests the either/or approach to on a topic, they are not necessarily used every time the dichotomies is destructive and goes on to say a decision is made...
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Catalogue: GRDC Updates (South)
Goondiwindi Grains Research Update 2006 28 thFeb & 1 stMarch 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 100 200 300 0 100 2 0 300 r e Bravo-Quadris Folicur v e100 s e 80 s a 60 e s 40 i D 20 0 0 100 200 300 0 100 200 300 Headline Quadris Volume (L/ha) Ascochyta disease severity on Yuma (fern leaf type - Kabuli) with four fungicides and three carrier volumes @ 2.75 bar... Overall, Hotshot @ 500 mL/ha is compatible with Topik 240EC @ 85 mL/ha, with no reduction in control of wild oats... In summary The work we have undertaken over the past five years conforms to the UK/Western European production systems when grown under irrigated conditions in Australia...
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Catalogue: GRDC Updates (South)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
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Catalogue: GRDC Updates (North)
Goondiwindi Grains Research Update 2006 28 thFeb & 1 stMarch 2006 100 80 60 ) 40 % 20 ( y0 t 0 i 0 100 200 300 0 100 200 30 r e Bravo-Quadris Folicur v e100 s e 80 s a 60 e s 40 i D 20 0 0 100 200 300 0 100 200 300 Headline Quadris Volume (L/ha) Ascochyta disease severity on Yuma (fern leaf type - Kabuli) with four fungicides and three carrier volumes @ 2.75 bar... Overall, Hotshot @ 500 mL/ha is compatible with Topik 240EC @ 85 mL/ha, with no reduction in control of wild oats... In summary The work we have undertaken over the past five years conforms to the UK/Western European production systems when grown under irrigated conditions in Australia...
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Catalogue: GRDC Updates (North)
The capacity of the plant to take up potassium is not directly related to potassium in solution... Spraying is best done when there is some wind, and when the operator can be sure that wind direction has stabilised... Driftability of amine formulations The 2,4- D products Surpass and Amicide 625 which were used in the trial are considered to be nonvolatile any drift that is associated with these products will be droplet drift not vapour drift...
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