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water resource

Catalogue: Ground Cover
As atmospheric carbon dioxide (CO 2 ) increases, wheat grain yields are expected to increase by five to 40 per_cent through the 'CO2 fertilisation effect'; the climate is more than just elevated CO 2 ... Researchers at the Australian Grains Free-Air Carbon Dioxide Enrichment (AGFACE) facility at Horsham, Victoria, are measuring the effects of a changing climate through field experiments in which additional carbon dioxide (CO 2 ) is released onto test crops, a technique known as free-air CO 2 enrichment (FACE)... If the water supply to plants can be increased with careful agronomic management (for example, stubble retention and weed control) the effects of rising temperatures and lower growing-season rainfall could be reduced...
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Catalogue: Ground Cover
As atmospheric carbon dioxide (CO 2 ) increases, wheat grain yields are expected to increase by five to 40 per_cent through the 'CO2 fertilisation effect'; the climate is more than just elevated CO 2 ... Researchers at the Australian Grains Free-Air Carbon Dioxide Enrichment (AGFACE) facility at Horsham, Victoria, are measuring the effects of a changing climate through field experiments in which additional carbon dioxide (CO 2 ) is released onto test crops, a technique known as free-air CO 2 enrichment (FACE)... If the water supply to plants can be increased with careful agronomic management (for example, stubble retention and weed control) the effects of rising temperatures and lower growing-season rainfall could be reduced...
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Catalogue: Ground Cover
Deep drains are an engineering solution to removing saline water from farmland... When the Wallatin Wildlife and Landcare group, east of Kellerberrin, had the opportunity to apply for funding to tackle salinity over two whole catchments in 2003, it jumped at the chance... Fifteen demonstration projects were set up and landholders had the opportunity to co-invest in further projects of their choice, based on technical reviews, available data and on-farm site visits by a technical team with natural resource management, hydrology, plant, and water management expertise...
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Catalogue: Ground Cover
Deep drains are an engineering solution to removing saline water from farmland... When the Wallatin Wildlife and Landcare group, east of Kellerberrin, had the opportunity to apply for funding to tackle salinity over two whole catchments in 2003, it jumped at the chance... Fifteen demonstration projects were set up and landholders had the opportunity to co-invest in further projects of their choice, based on technical reviews, available data and on-farm site visits by a technical team with natural resource management, hydrology, plant, and water management expertise...
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Catalogue: Nuffield Scholar Reports
I believe it is imperative that irrigators have access to the most efficient and technologically advanced systems in order to provide every possibility of maintaining and sustaining what is arguably our most valuable resource... The open market for water trading in some systems has also seen an increase in the cost of permanent and temporary water as a result of the domestic customer requiring only small parcels of water that they are willing to pay for... The systems are very widely used and advances in the hardware and software are making them a more efficient, durable and cost effective way of applying water as well as other soluble inputs such as fertiliser...
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Catalogue: GRDC Updates
The paper presents a predominantly Victorian-based review of the events of 2009/10 and discusses the water management outlook for 2010/11... The Victorian Murray and Goulburn systems experienced rapid allocation improvements during September and October 2009 as spring rains brought welcome storage inflows (Figure 1 )... Under new carryover rules for the Goulburn, Murray and Campaspe systems, irrigators can carry over all water in their allocation bank accounts at the end of the season and start the irrigation season with equivalent to 100% allocation and then receive allocation improvements across the season...
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Catalogue: Nuffield Scholar Reports
The general best practice has been to push more water down each furrow for a shorter time, to minimise deep drainage and reduce plant waterlogging... Figure 5: Overhead Spray System over Maize in Spain To put this amount of water in perspective, usually we would expect to apply between 4.5 and 8.5 MGL/ha over an average of 6 irrigation cycles each season using furrow irrigation, depending on rainfall received... The longer I think about my Nuffield experience, the more I understand how the myriad of small changes, systems and techniques that I saw and experienced will shape my thinking and the development of agriculture in Australia in the future...
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Catalogue: Nuffield Scholar Reports
Overarching the basic fundamentals the Federal Government needs to ensure a cohesive national approach to water reform is maintained... We had fallen into the trap that we believed that if we just added water we could make anything grow and for several seasons we had been trying to grow annual rye grass (rye pasture makes up a large percentage of the conventional dairy cows' diet) with little success... On returning from the study we decided to have all of our pivots tested to see if they were operating as we believed they were...
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Catalogue: GRDC Research Summaries
The manual provides consultants and advisers with practical information, methods and tools for the characterisation of soils for plant available water capacity, with the aim being to ensure improved consistency of measurement and delivery of information to the Australian agricultural sector... Characterisation provides a way for the grower, consultant or researcher to gain a better understanding of the size of the soil 'bucket' in which the water resources required to grow a particular crop are stored... Characterisation is about defining the ability of a soil to hold water for the use of a particular crop, known as the soil water 'bucket'...
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