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complex soil

Catalogue: GRDC Research Summaries
The project assesses how strategic irrigation can be used to overcome the complexities of duplex soils to maximise yield and water-use efficiency (WUE) of barley through maximising root depth and distribution... To date, field trials with barley have been conducted in the 2009 and 2010 growing seasons under contrasting irrigation regimes in Cambridge, Tasmania on a duplex soil (output 1)... Strategic irrigation of barley was demonstrated to have a positive influence on grain yield, rooting depth and distribution in duplex soils...
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Catalogue: Ground Cover
Water-repellent soils affect 30 per cent of Australia's cropping land, mostly in Western Australia... "We can look inside complex soils, such as vertisols, and can segment out the root system and can also see water in three dimensions in real soil samples, held undisturbed, or intact, from the field," Professor Young says... "People look at the weight or quantity of water available for plants, but it is really the surface tension between the soil and the water - the contact angle of that fine water film - that controls how water moves in soil, not the amount of water," Professor Young says...
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Catalogue: Ground Cover
Water-repellent soils affect 30 per cent of Australia's cropping land, mostly in Western Australia... "We can look inside complex soils, such as vertisols, and can segment out the root system and can also see water in three dimensions in real soil samples, held undisturbed, or intact, from the field," Professor Young says... "People look at the weight or quantity of water available for plants, but it is really the surface tension between the soil and the water - the contact angle of that fine water film - that controls how water moves in soil, not the amount of water," Professor Young says...
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