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Catalogue: GRDC Updates
CSIRO has a long track record of making major on-going investment into the genetic improvement of wheat varieties and their agronomy to ensure they fit the target requirements for both the main wheat belt and the High Rainfall Zones of Australia... Underpinning the development of the traits provided to Australian breeders are a series of basic technologies that we are applying to our work... We outline the state of current research efforts supported by public funds (CSIRO, GRDC) with particular emphasis being given to developments that we believe will assist plant breeders in Australian breeding companies to deliver new high quality, well adapted productive wheats that have the ability to counter major constraint factors...
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Catalogue: GRDC Updates
Samples of chaff were collected from four different chaff carts during harvest 2011... The grain yield and crop harvest index were used to estimate the total crop residue in the paddock... The cost of a unit of potassium was estimated at the time of writing and will vary considerably...
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Catalogue: GRDC Updates
The database underlying the BFDC Interrogator contains the results of more than 5000 soil test calibration experiments conducted in Australia since the 1950s... Soil test-crop response (N, P, K and S fertiliser) trials have been undertaken by many different organisations in Australia since the late 1950's... There have been a number of scientific publications (Crop & Pasture Science Special Issue, Volume 64) derived from the trial data contained within the BFDC dataset...
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Catalogue: GRDC Updates
Agricultural soils have lost approximately half (~ 50 t/ha) of their organic carbon since the industrial revolution, a loss that has greatly contributed to soil degradation... We have shown, in experiments with wheaten straw incubated in a variety of soils, that the conversion of the straw into humus (which is much richer in N, P and S than are crop residues) is increased three to tenfold by augmenting the residues with supplementary nutrients according to the established ratios... We hypothesised that adding some extra nutrients (N, P and S) would lead to more microbes being formed than without the extra nutrients and that this would lead to faster stubble decomposition and more plant-C being transformed into humus-C because, we believe, humus is largely dead microbes not dead plant material...
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Catalogue: GRDC Updates
In a survey conducted in 2011 of sheep producers in the mixed-farming zone of the Hume Livestock Health and Pest Authority (LHPA) in southern NSW, 42% of respondents identified that they had grazed late pregnant or lambing ewes on dual-purpose wheat during the period 2005-2010... Given the above statistics, there is both a perception and a reality of the potential for high losses in reproducing ewes grazing dual-purpose wheat... In a field trial in 2010 with lambing merino ewes on a wheat crop near Balldale in southern NSW we observed only a 1% mortality rate in ewes grazing dual-purpose wheat...
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Catalogue: GRDC Updates
The use of biotechnology will play a significant role if Australia is to continue to be a major player in the global grains market... But currently growers and the general public are hearing conflicting view points on whether this technology will benefit Australia, or whether we'd be better off without genetically modified crops... The reduced usage of herbicides plus yield benefit obtained from the ability to seed early and control weeds, more than covers the additional cost...
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Catalogue: GRDC Updates
*Note - the report may contain independently supported projects, which complement the work in this GRDC research program... CTF systems support and maximise new technologies.. CTF systems are farming systems built on the simple concept of controlled traffic or permanent wheel tracks...
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Catalogue: GRDC Updates
At current fertiliser prices and by using the products tested in this trial, the application of balanced N, P, Mg, K and Zn would increase wheat gross margins by approximately $77.60 /ha... The chemistry of P placement; banding versus broadcast Primary researchers: Kylie Dodd, Ganga Hettiarachchi and Mike McLaughlin In P responsive soils, fertiliser banding is used to increase efficiency by improving early root contact with the fertiliser... The results suggest that increased granular fertiliser efficiency with banding was primarily due to improvements in early root contact with fertiliser P rather than its effect on P fixation...
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Catalogue: GRDC Updates
Today the world faces looming scarcities of just about everything required to produce high yields of food - water, land, nutrients, oil, technology, skills, fish and stable climates... To put our consumption in perspective, over a lifetime, each of us uses enough water to float the USS Enterprise, a rather large aircraft carrier... An easy way to improve global food security is to reduce the colossal waste of half the food we currently produce...
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Catalogue: GRDC Updates
My first point is that the central issue in the human destiny in the coming half century is not climate change, terrorism or the global financial crisis, it is whether we can achieve and sustain such a vast supply of food... There are looming scarcities of just about everything we need to produce good food - water, land, nutrients, oil, technology, skills, fish, finance and stable climates and it is very hard to solve one, without making the others worse... An easy way to improve global food security is to reduce the colossal waste of half the food we currently produce...
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