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Changing patterns of salt distribution in irrigated soils

The compilation of a clearer picture of the changing patterns of salt distribution in irrigated soil by Flinders University of SA student Megan Sebben under the supervision of the head of the South Australian Research and Development Institute’s Water Resources and Irrigated Crops Unit, Jim Cox.

Salt Sensitivity Database

The Australian Biodiversity Salt Sensitivity Database contains information on the sensitivity and tolerance of over 1200 species of Australian taxa to salt. The database is supported by interpretive notes and a statistical analysis of species groupings

Irrigation Update Volume 9

Irrigation and the Rootzone

In this issue:

  • Investigating the Salt of the Earth
  • Digging deep and the quest for super soils
  • Linking irrigator experience with measured data
  • NPSI News

Root Zone Salinity Risks in the Lower Murray Districts

As a result of improved irrigation management and systems, growers in the Lower Murray (Riverland-Sunraysia) horticultural region have improved their water use efficiency (WUE) over the past two decades from about 50% to about 80%. However a negative consequence of this achievement is the emerging risk of salinity build-up in the root zone, threatening the sustainability of the region (Biswas et al. 2005a; Biswas et al. 2005b). The amount of irrigation applied must account for (more)...

Rip Rap Edition 32

River contaminants: salt, nutrient, sediment and their interactions

Using Wetting Front Detectors in Furrow Irrigation

The Wetting Front Detector (WFD) is a new tool to help measure how deeply water has penetrated into the soil after an irrigation event. The WFD also captures and stores a soil water sample, which can be analysed for its salt or nutrient content. The first commercial version of the Wetting Front Detector (WFD), called the FullStop, was released in 2004. The FullStop WFD is comprised of a (more)...

Scoping Study: Soil-water and salt movement associated with precision irrigation systems - research investment opportunities

The Board of the National Program for Sustainable Irrigation commissioned this scoping document to assist in its research investment deliberations. The key question addressed by this scoping study is: What has to be developed or modified to understand and monitor the three dimensional flow of water and salt movement in: (a) the root zone when precision irrigation systems are used, and (b) the soil profile, assuming that we are able to manage the preferred salt storage zones? (more)...