You are here

nitrogen fixation

Catalogue: Ground Cover
Morava vetch sown in mid-April was an effective option for weed control by brown manuring.. Field pea varieties sown in mid-May were suitable for both brown manuring and crop-topping.. NSW DPI research agronomist Luke Gaynor says there is a clear choice to make when brown manuring - either spray out the legume in early spring at the very early flat pod growth stage or wait until plants reach peak biomass to help maximise nitrogen fixation...
Related categories:
Catalogue: GRDC Media
The conference will bring together Australian and international delegates with an interest in biological nitrogen (N) fixation... Co-hosted by the Australian Society for Nitrogen Fixation, the University of Adelaide and the SA Research and Development Institute and sponsored by the Grains Research and Development Corporation (GRDC), the AW Howard Memorial Trust, the SA Grain Industry Trust, BASF Agricultural Specialties and Novozymes Biologicals Australia, the conference will be based at the Plant Research Centre at the Waite Precinct, Urrbrae, and will include a field tour to the Mid North of SA... The theme of the event is "N 2 fixation: reaping the benefits of basic and applied research", and the topics of targeted sessions will include the diversity and ecology of N-fixing organisms; molecular genetics and mechanisms of N fixation; N-fixing symbioses; N fixation in terrestrial systems; and increasing fixed N in farming systems...
Related categories:
Catalogue: GRDC Publications
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 Goondiwindi, March 2014 used a PCR for Beet western yellows virus (BWYV), Bean leaf roll virus (BLRV), Phasey bean virus (PhBV) and Soybean dwarf virus (SbDV) to investigate host range of the virus species from a range of locations (Table 2)... GRDC Grains Research Update Goondiwindi, March 2014 van Leur J, Aftab M, Sharman M, Lindbeck K (2014) Proceedings 2014 GRDC Grains Research Update, Coonabarabran...
Related categories:
Catalogue: Ground Cover
Trials show that chickpeas, such as this crop at Emerald, Central Queensland, have the potential to lift yields in subsequent wheat crops... Trials of chickpea/wheat rotations in the Central Queensland grain-growing region show that using chickpeas as a break crop could help growers increase yields, protein levels and profitability in subsequent wheat crops... Results for a trial at 'Wongalee', near Theodore, CQ, showed a huge increase in both the yield and protein content of wheat grown after chickpeas. "..
Related categories:
Catalogue: Ground Cover
Trials show that chickpeas, such as this crop at Emerald, Central Queensland, have the potential to lift yields in subsequent wheat crops... Trials of chickpea/wheat rotations in the Central Queensland grain-growing region show that using chickpeas as a break crop could help growers increase yields, protein levels and profitability in subsequent wheat crops... Results for a trial at 'Wongalee', near Theodore, CQ, showed a huge increase in both the yield and protein content of wheat grown after chickpeas. "..
Related categories:
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)...
Related categories:
Concepts:
Catalogue: Ground Cover
Legumes, including pasture legumes, are estimated to fix almost three million tonnes of nitrogen a year in Australia... Inoculation of legumes with rhizobia can deliver substantial nitrogen inputs, but inoculants need to be used strategically and with a risk/benefit approach to maximise the nitrogen delivered... Nitrogen fixation generally increases with crop biomass good agronomic management leading to optimal legume growth will favour higher nitrogen inputs...
Related categories:
Catalogue: Ground Cover
Legumes, including pasture legumes, are estimated to fix almost three million tonnes of nitrogen a year in Australia... Inoculation of legumes with rhizobia can deliver substantial nitrogen inputs, but inoculants need to be used strategically and with a risk/benefit approach to maximise the nitrogen delivered... Nitrogen fixation generally increases with crop biomass good agronomic management leading to optimal legume growth will favour higher nitrogen inputs...
Related categories:
Catalogue: GRDC Media
Studies have revealed that growing crop legumes in rotation with cereals can often reduce the need for nitrogen fertiliser inputs by 40 to 80 kilograms per hectare, and improve crop productivity... Basic principles and practical management information relating to nitrogen fixation by crop legumes is contained in a new fact sheet released by the Grains Research and Development Corporation (GRDC)... The ability of legumes to form a mutually beneficial association with rhizobia and fix atmospheric nitrogen gas enables them to grow in almost any soil without nitrogen fertiliser...
Related categories:
Catalogue: GRDC Media
Australian research is beginning to reveal the impact of farming practices on soil microbiology and how this affects the supply of yield-boosting nutrients to crops... Dr Phillips said research was exploring whether previous crops influenced microbial community functioning in subsequent cropping years; whether differences in the amount and quality of residue/stubble impacted microbial communities responsible for transforming organic and mineral N to plant-available N; and whether agronomic practices such as tillage and depth of fertiliser placement could be strategically used to manipulate N-cycling microbial communities... Caption: Soil microbiologist Lori Phillips says current research is aimed at determining the make-up of microbial communities in the soil, their role in nutrient cycling and how farming practices influence microbial activity...
Related categories:

Pages