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Developing and assessing agronomic strategies for water repellent soils Steve Davies, DAFWA Paper 298KB Presentation ...

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It should be noted that the yield responses measured with paired cuts on water repellent areas were quite large compared to the average grain yield advantage for the winged point-paired row system across the whole paddock (200 kg/ha)... Recent research indicates that some of these formulations only work on quite specific soil types such as the forest loamy gravels or on firmer soils with reasonable clay content and are less effective on the repellent sands... Soil water content contradicted the findings on water repellence and indicated that water infiltration was best under zero-tillage and stubble retention and poorest under stubble removal and cultivation (Figure 1B), and this impacted on crop performance...