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contrasting soil

Catalogue: GRDC Final Reports
ROOTMAP can be used to improve the strength of an experimental design by simulating the effect of different seasons on an experiment; identifying treatments most likely to provide the range of results needed; identifying the number of replications required to produce stable results; investigating the relationship between root growth in a glasshouse study and in the field; and extending the design to test other treatments that might be relevant to the hypothesis... ROOTMAP can also be used to extend research findings beyond pot boundaries and beyond the 2D measurement method used... To date, the use of ROOTMAP has been largely restricted to the creators and developers of the model and close collaborators because of the level of programming and modelling skills required to run it...
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Catalogue: Ground Cover
David Trevilyan says while there has been limited opportunity for irrigation due to wet seasonal conditions since they installed the centre pivot across 100ha in 2012, the system is already proving a cost-effective investment... "We considered slowing down the centre pivot over the black soil to help capitalise on its greater water-holding capacity, but this approach would cause the crop on our fast-draining red soil to become water-stressed.".. Saturated conditions due to rainfall in 2013, which prevented the Trevilyans from getting onto their waterlogged black soil to seed cotton, has added another dimension of difficulty to their on-farm practices, with the crop having to be planted at different times on the two soil types...
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