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irrigation water

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Catalogue: Ground Cover
Part five of the series by Rebecca Thyer reporting on how six growers from around the country are working their way through the 2006 winter cereals season... Overall this year has been financially disastrous... Farm size and area cropped: 3000ha, cropping 80 to 90 per cent of that area..
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Catalogue: Nuffield Scholar Reports
I believe that Suzanne's comment reflected that while the board and directors had a well-managed and profitable business run in a responsible manner, they had lost touch with public perception and had not recognised or understood that the community now had a different expectation to how water resources are managed... What surprised me with this research was that it was being duplicated in neighbouring states, and that neither trial work had a control plot where a crop was grown under "best management practice" with the yield, response, and economic outcomes being measured against the other trial work... With the communication phase of succession, I believe we need to receive the affirmation of all parties included...
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Catalogue: GRDC Updates (North)
GRDC values the contributions made by its research partners during the 2004 series of Grains Research Updates.. Overall, there were 50 comparisons, 45 showing a positive yield increase with fluid and 5 with no yield difference... Overall, there were 11 comparisons, with 4 yield decreases due to fluids and 7 with no yield differences...
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Catalogue: GRDC Updates (South)
GRDC values the contributions made by its research partners during the 2004 series of Grains Research Updates.. Overall, there were 50 comparisons, 45 showing a positive yield increase with fluid and 5 with no yield difference... Overall, there were 11 comparisons, with 4 yield decreases due to fluids and 7 with no yield differences...
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Catalogue: GRDC Updates
The cost of having the dollars tied up in any equipment, let alone a header needs to be taken into account... If we want to be contractors we need to set up for it, or let someone else do it and we concentrate on growing grain... Casual labour is employed where required and contractors are used for specific tasks such as spraying and harvesting...
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Catalogue: GRDC Updates
Best estimate climate change scenarios indicate that surface water availability in the Northern Region will decrease over the next 20 years, putting pressure on agricultural water users to increase water productivity... After checking that was working satisfactorily, we used to simulate potential yield and water use from a range of agronomic conditions and in different locations across the Northern Region (Emerald, Dalby, St George, Goondiwindi, Walgett, and Gunnedah)... The use of smaller irrigation deficits and narrower row spacing than we have used in the simulations (in combination with favourable growing conditions and perhaps a longer season variety) may well see a commercial crop yield higher than these benchmarks from time to time...
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Catalogue: GRDC Updates
" Date: 24.09.2010 IMPROVING PROFITABILITY OF IRRIGATED SORGHUM THROUGH PARTIAL IRRIGATION OF LARGER AREAS.. Two main management strategies were used by growers in the 2007/08 season: (1) full irrigation, involving two irrigations, one prior to anthesis, and another at or soon after anthesis, and (2) partial irrigation, usually consisting of a single irrigation of greater than 1 ML/ha, timed to coincide with flowering... The broad objective of this research was to assess different irrigation strategies for irrigated sorghum on the heavy clay soils of the eastern Darling Downs...
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Catalogue: Broadacre Field Crops DAFF QLD
Many natural waters contain impurities that make them directly harmful to crops... Knowledge of a water supply's quality, assessed by chemical analysis, is essential in determining its usefulness in an irrigation system... When irrigation water containing residual alkalinity is used on clay soils containing exchangeable calcium and magnesium, sodium from the residual alkalinity in the water will replace calcium and magnesium in the soil...
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Catalogue: Broadacre Field Crops DAFF QLD
Many natural waters contain impurities that make them directly harmful to crops... Knowledge of a water supply's quality, assessed by chemical analysis, is essential in determining its usefulness in an irrigation system... When irrigation water containing residual alkalinity is used on clay soils containing exchangeable calcium and magnesium, sodium from the residual alkalinity in the water will replace calcium and magnesium in the soil...
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Catalogue: Broadacre Field Crops DAFF QLD
Many natural waters contain impurities that make them directly harmful to crops... Knowledge of a water supply's quality, assessed by chemical analysis, is essential in determining its usefulness in an irrigation system... When irrigation water containing residual alkalinity is used on clay soils containing exchangeable calcium and magnesium, sodium from the residual alkalinity in the water will replace calcium and magnesium in the soil...
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