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Discs and stubble aid non wetting soils

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Photo of blue dye seeping into soil.. Dr Roper says the trials indicate that the yield gains zero-tillage and stubble retention provid in canola, barley and wheat result from improved water infiltration in the soil... "In our experiments, crops were seeded with discs on the previous year's inter-row, which resulted in no disturbance of remnant root systems from the previous year," Dr Roper says, adding that using this approach with knife points is also unlikely to disturb remnant root systems...
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