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Deep-ripper deals with compaction at Mullewa

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Deep-ripper deals with compaction at Mullewa.. Mullewa grower Andrew Messina is trialling a new deep-ripper that can slice 80 centimetres into the soil to crack hard pans and help overcome compaction issues... Andrew says in 12m-wide and 200m-long paddock strip trials on an area that had been mouldboard ploughed in 2011, the deep-rippers produced wheat yields of 2.7 tonnes per hectare, compared with 2t/ha from the nil-treated area and 2.3 to 2.4t/ha from a conventional deep plough (tilling to a depth of 30cm)...