Trial | Contributor Funding sources |
Year | Trial site |
---|---|---|---|
Ultra high pressure injection of nitrogen (UAN)To assess the potential to use Ultra High Pressure (UHP) liquid injection technology to apply an ultra low soil disturbance UAN sideband into cropping soils and test whether UHP injection of UAN is a viable alternative N application method for the future. |
South Australian No-till Farmers Association
AGAC |
2010 | Salter Sprins SA |
Research organisaton
|
|||
The short term effect of different soil treatments on organic carbon and barley yield on a sandy soilTo assess the effects of physical, chemical and biological soil manipulation (or inputs) on soil organic carbon in relation to changes in long term crop yields and quality. |
SoilsWest
AGAC DAFWA GRDC |
2013 | Buntine WA |
Research organisaton
|
|||
Bentonite clay and tillage to improve soil and yieldTo determine if inclusion of Bentonite clay improves crop yields on sandy soils. |
Liebe Group
AGAC |
2013 | Miling WA |
Research organisaton
|
|||
Modelling methane emissions from Merino lambs on improved forages in low rainfall mixed farming systemsThe issue of enteric (from intestines) methane (CH4) emissions produced by ruminant livestock is gaining local and global interest due to methane being a powerful greenhouse gas and ruminants being a significant source of emissions. In the absence of measurements, prediction models can facilitate the estimation of enteric methane emissions from ruminant livestock and aid investigation of mitigation options. In Southern Australia, the management of the feedbase in low rainfall mixed farming systems through addressing ‘feed gaps’ – times of year during which the supply of forage is insufficient to meet livestock demand; is a key practice change which has the potential to mitigate methane emissions, particularly from sheep.
The aim of this trial was to evaluate pasture/forage options with a potential to fill the late-spring and early winter feed gaps and to measure comparative animal production and feed quality in response to current and improved forages. Methane output (gCH4/day) was simulated using the GrazFeed model.
The GrazFeed decision support tool is a component of the GRAZPLAN decision support project for Australian grazing enterprises developed by CSIRO to help graziers improve the profitability of livestock production through more efficient use of pastures and supplementary feeds. It does this by predicting the intake of energy and protein and their use for maintenance and production (Freer et al., 1997). |
Eyre Peninsula Agricultural Research Foundation
AGAC |
2016 | Minnipa Agricultural Centre SA |
Research organisaton
|
|||
Reducing sheep methane emissions through improved forage quality on mixed farmsSheep are an integral part of low-medium rainfall mixed farming systems across southern Australia and they account for 23% of Australia’s total livestock emissions. Apart from the contribution to anthropogenic greenhouse gas emissions, the energy lost as methane represents a significant inefficiency in sheep production systems. Therefore, maintaining or improving the balance between forage and animal productivity, and methane emissions is likely to be a challenge under a warmer and drier climate. The aim of this trial is to evaluate pasture/forage options to fill in the late-spring, autumn and early winter feed gaps; and to measure comparative animal production, feed quality and methane emissions in response to current and improved sheep feeding strategies. |
Eyre Peninsula Agricultural Research Foundation
AGAC |
2015 | Minnipa Agricultural Centre SA |
Research organisaton
|
|||
Controlled traffic farming effects on soil emissions of nitrous oxide and methaneSoil compaction affects soil aeration and gas diffusivity, and thus has a major impact on the release of greenhouse gases (GHGs) from fertilised soils. Controlled traffic farming (CTF) systems reduce the area of compacted soil by confining all field traffic to permanent traffic lanes, and a pilot trial at one long-term CTF site provided evidence of reduced soil emissions. We investigated the effect of CTF on soil emissions of nitrous oxide (N2O) and methane (CH4) using replicate manual chamber measurements in 3 traffic treatments;namely:non-trafficked CTF beds, permanent CTF lanes,and a single traffic pass on CTF beds to simulate the random traffic tracks of non-controlled traffic farming. Emissions of N2O and CH 4 were monitored from these treatments in 15 crops over 3 years on 6 grain farms in Queensland, Victoria and Western Australia. Thus, the major objective was to determine the emissions of N2O and CH4 from random trafficked and permanent traffic lane soil, relative to those from non-trafficked CTF beds. These emission ratios are referred to here as traffic impact factors. |
Australian Controlled Traffic Farming Association Inc.
AGAC GRDC |
2014 | Inverleigh VIC |
Research organisaton
|