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Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
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Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
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Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
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Catalogue: GRDC Publications
Overall, soil CEC and SOC content was greatest in the 0.2 and 0.2-2 m fraction, indicating that size, and probably type, of SOM influenced CEC... Kaiser et al. (2003) found that soils with a high content of black carbon showed increased sorption ability compared with plant- and microbial-derived SOM... Addition of organic amendments can increase P availability to plants by decreasing the P adsorption capacity of soils...
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Catalogue: GRDC Publications
Tools are now available to better define soils in terms of their productive capacity and for the routine seasonal monitoring of the water resource as it is captured and utilised by crops (or weeds if allowed)... Underpinning the push to improve water use efficiency is the need for farmers and their advisors to have a good understanding of how soils work in relation to water capture and storage and why some soils have the ability to hold more water for crop use than others... Rooting depth should be 101..
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Catalogue: GRDC Final Reports
Changes to farming practices and resultant improvements to water storage efficiency, coupled with the high variability in climate, have increased demand for improved understanding of soil water management in agriculture... Investigation of technologies to expedite measurement of soil water has resulted in the development of the tools, SoilMapp and Soil Water Express and improved understanding of the potential for electromagnetic induction (EMI) and spectrometry to contribute to soil water management... If the accuracy of decision support tools is to be increased, there is a continuing need for the characterisation of soils at the paddock or broader spatial scales to fill existing data 'black holes'...
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Catalogue: GRDC Research Summaries
Over recent years soil water has become an increasingly important component of crop management in Australia?s broadacre cropping systems... This project builds on previous research (GRDC CSA00011) providing more advanced soil water management training to agricultural consultants and farmers, expanding the regional characterisation of soils for PAWC and assessing technologies for the rapid characterisation and monitoring of soil water resources on-farm... The development of the Soil Water Express, provides users with the potential to undertake a rapid, but less accurate, prediction of PAWC based on locally derived soil data and functions developed from information contained in the APSoil database...
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Catalogue: GRDC Research Summaries
Over recent years soil water has become an increasingly important component of crop management in Australia?s broadacre cropping systems... The development of the Soil Water Express, provides users with the potential to undertake a rapid, but less accurate, prediction of PAWC based on locally derived soil data and functions developed from information contained in the APSoil database... Whilst in-situ electronic monitoring devices including NIR and capacitance probes provide an adequate picture of soil water in rigid soils, they were found to be inappropriate for shrink/swell soils where cracking and soil movement interfere with accurate recording...
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