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irrigation management

Catalogue: GRDC Updates
There is an array of resources that irrigators can access to enhance their irrigation knowledge and the profitability of irrigated grain production: Cotton and grain irrigation workshops Cotton and Grain Irrigation Website WATERpak.. They have produced a number of resources that growers and consultants can access to advance their knowledge of irrigation management and maximize the profitability of irrigated grain production... The Cotton and Grain Irrigation website (established under the National Program for Sustainable Irrigation funded Irrigation Knowledge Management project ) provides irrigators and consultants with the latest information on irrigation...
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Catalogue: GRDC Updates
Some wheat varieties have the ability to store water soluble carbohydrates (WSC) that can be used as a reserve of assimilates for grain filling in the event of water deficit at the end of the growing season... The results may go some way to explaining why selection for yield in Eastern Australian breeding programs has not resulted in new varieties with increased WSC accumulation, as has been observed in the West Australian and CIMMYT breeding programs (van Herwaarden and Richards, 2002)... Previous work has shown that carbohydrate accumulation is moderately heritable (Ruuska et al., 2006)...
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Catalogue: GRDC Updates
Preliminary studies carried out as part of the project last season, sought to establish whether crop reflectance readings could be related to crop size and plant nitrogen uptake at the key timings for in-crop nitrogen application tillering to flag leaf emergence (GS22 - GS39)... Much of the work on wheat has been conducted in higher yielding irrigated scenarios following Sorghum so that soil nitrogen reserve is sufficiently depleted to ensure a response to nitrogen... Furthermore if a split nitrogen application during stem elongation (GS30 start of stem elongation followed by GS33 - 39 third node to flag leaf emergence) could be employed in the knowledge that it was not inferior to other N strategies, it would not only give a greater flexibility to respond to the season in terms of spring rainfall (for dryland growers), but would also allow the growth changes (e.g. NDVI "change map") to be recorded with crop sensors (on a spatial basis) following the application of the first dose...
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Catalogue: GRDC Updates
Previous cereal research work in northern NSW has focussed on in-crop nitrogen application as a "top-up" treatment with the greater proportion of N being applied to the seedbed... Work in 2006 and 2007 showed significant differences in canopy structure when nitrogen was delayed until stem elongation (GS31) but in both years that was no significant increase in grain yield compared to when N was applied at sowing... Figure 3: Influence of split N applications on grain yield from early and main sown EGA Gregory For the later sowing, results are very similar to those in 2006 and 2007 with split applied or N applied at GS31 maintaining grain yields but limited significant yield response compared to the seedbed N treatment (figure 3)...
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Catalogue: GRDC Media
Lateral move irrigator boosts WUE and increases yields.. "A great advantage I see is with cereals and canola, you can top-dress and then hit it with a 'rain' just to take that nitrogen into the soil and into the root zone," Terry said... "Often when top-dressing cereals and canola, you're looking for a rain event to take that in. During the irrigation season, we can water-run our nitrogen requirements through the syphons and it will distribute into the root zone...
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Catalogue: GRDC Updates
Increasing Yield of Irrigated Wheat in Queensland and Northern NSW.. We present preliminary results from the GRDC funded 'Achievable Yields' project on the yield potential of irrigated wheat across the region... Results of sampling 12 irrigated wheat paddocks across southern QLD in 2008 (a) mineral N in the top 1.8 m of soil at sowing (b) grain yield reported by farmers, and yield loss calculated from the difference between potential yield (estimated from APSIM or non-lodged quadrats) and quadrat cuts of lodged crops...
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Catalogue: GRDC Updates
Precision agriculture (PA) involves a range of methodologies and technologies which aim to improve the precision of agricultural management in spatially-variable fields... The research investigates the potential of using a combination of EMI sensing in conjunction with differential fertilizer management to optimize the match between spatially-variable plant water demand and plant available water... Brooke Sauer PCT Ph: 0427 090 279 Email: brooke@pct-ag.com < Keep browsing 0 Responses to Optimising crop potential using PA tools..
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Catalogue: GRDC Updates
We maintained the size of the operation and by the time we decided to move out of dairying in 2008, we had reached a point where we no longer believed that the dairy industry had anything further to offer us... Agronomic knowhow In our first season, I decided to use a well known and respected agronomist employed by a local fertiliser retailer... For irrigated crop production in the SC-MDB to be internationally competitive long term it is imperative that we have a combination of; From my actions, I obviously believe that irrigated grain production has a future, but if irrigators are looking to move into it (or continue in it) without taking at least some notice of a list of..
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Catalogue: GRDC 2014 Research Summaries
The aim of the project is to overcome the barriers in growing two crops under irrigation in 52 weeks or less... Double cropping entails more than just growing a winter crop then following it with a summer crop... Core sites will be established to enable accurate and intensive investigation following identification of the most critical regional issues identified by the project steering committee, while taking into account relevant prior RD&E.Preliminary issues already identified in the GRDC Irrigation Regional Cropping Solutions (RCS) Network will form the starting point of the project, namely reliable assessment of herbicide residues in irrigated cropping systems, new technology in herbicide tolerant crops and maturity of crop varieties in Northern Victoria...
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