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Water infiltration

Catalogue: GRDC Research Summaries
" Water Balance of Conservation Farming Systems in WA 2.. With farmers seeking to maximise the benefits of conservation farming techniques, there is a definite trend towards higher levels of stubble retention, and potentially increased diversity of crop species in the rotation... WANTFA are playing a leading role in promoting higher levels of residue cover as a means to gain maximum benefits from conservation farming...
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Catalogue: GRDC Final Reports
Whilst managing the water balance of crops is one of the most critical issues in Australian dryland agriculture, there has been limited information available to farm managers that allows the productive capacity of soils to be considered when making crop management decisions... Evaluation of project activities showed that whilst growers were interested in soil water management and were prepared to use Yield Prophet as a tool for in-season crop management, they generally relied on their consultants to undertake the pre-season monitoring and input of data... Whilst the project has had a major influence in promoting the value of soil water in management, there is an on-going need for higher level training as well as the development of increased capacity in soil characterisation and monitoring through the exploration and adoption of new technologies...
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Catalogue: GRDC Research Summaries
" Water Balance of Conservation Farming Systems in WA 2.. With farmers seeking to maximise the benefits of conservation farming techniques, there is a definite trend towards higher levels of stubble retention, and potentially increased diversity of crop species in the rotation... WANTFA are playing a leading role in promoting higher levels of residue cover as a means to gain maximum benefits from conservation farming...
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Catalogue: GRDC Final Reports
Experimental data are presented that show that fallow management, in particular that of weeds and residue cover, not only affects the amount of water stored or lost during the summer, but also has an effect on the loss of water past the root zone during the subsequent growing season... Model simulations capture these effects and a scenario analysis indicates that retaining residues past sowing increases the risk of deep water loss relatively rapidly... The effects of different residue management will be greater in wetter summers...
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Catalogue: GRDC Updates
The core objectives of the project are to increase the return per unit of applied water and reduce the environmental impact of irrigation in the project area through the roll out of precision irrigation systems that allow the irrigators to more precisely match water application to crop water needs... The project will incorporate: soil moisture and climate sensors to monitor the water balance in their soils and crops and make decisions about when to irrigate and how much and at what rate to apply water to their fields; and control systems and storages to provide users with greater control over the rate and timing of irrigation applications... CICL proposes to overcome these barriers by: providing a significant up-front cost subsidy for the deployment of the infrastructure for precision irrigation systems; avoiding the need for individual irrigators to acquire, deploy and maintain the technologies by offering a full service precision irrigation package that will be deployed and maintained by CICL and partner organisations; providing the near on-demand water supply service to the farm gate that is required in order to precisely match water; and most importantly, training and educating irrigators in the use of precision irrigation technologies and providing water balance and crop information in a user friendly format...
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Catalogue: GRDC 2014 Research Summaries
Farmers throughout southern Australia continue to seek improved conservation farming strategies, including increased levels of residue retention, reduced soil disturbance, and greater rotation diversity... CSIRO has been monitoring changes in the water balance on the trial since then, and so far we have demonstrated that early crop termination (as part of a cover cropping practice) can increase the risk of dryland salinity under some situations... Increased levels of residue retention have had little impact on the water balance in the short term (6 years), and so farmers can adopt this practice confident that there will be no negative short-term environmental impact due to changes in the water balance...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Irrigation scheduling is the decision of when and how much water to apply to an irrigated crop to maximise net returns... Irrigation and rainfall add water to the root zone... Following heavy rainfall or irrigation, water will drain out of the root zone until the Drained Upper Limit (DUL) is reached (also known as Field Capacity) - this is the amount of water that the soil can hold against gravitational forces...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Irrigation scheduling is the decision of when and how much water to apply to an irrigated crop to maximise net returns... Irrigation and rainfall add water to the root zone... Following heavy rainfall or irrigation, water will drain out of the root zone until the Drained Upper Limit (DUL) is reached (also known as Field Capacity) - this is the amount of water that the soil can hold against gravitational forces...
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Catalogue: Broadacre Field Crops DAFF QLD
" Print the page Irrigation scheduling is the decision of when and how much water to apply to an irrigated crop to maximise net returns... Irrigation and rainfall add water to the root zone... Following heavy rainfall or irrigation, water will drain out of the root zone until the Drained Upper Limit (DUL) is reached (also known as Field Capacity) - this is the amount of water that the soil can hold against gravitational forces...
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Catalogue: GRDC Final Reports
Farmers across southern Australia are adopting no-till farming systems that have potential for greater water use efficiency (WUE) and greater risk of drainage... The strong links established between CSIRO, WANTFA and the Department of Agriculture and Food Western Australia (DAFWA) are a very useful outcome for further research in this area... The links established between CSIRO, DAFWA and WANTFA are strong and should be maintained to ensure rigorous research and rapid adoption...
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