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Deep ripping not appropriate for all soil types A comprehensive understanding of the cause and location of high soil strength is required before undertaking deep ripping as research has shown it is does not provide an economic solution in some soil types... KEY POINTS Deep ripping of compacted soils is most likely to improve grain yields on sandy soils and where compaction has occurred on upper parts of the soil profile through machinery traffic or livestock trampling... Overall, compacted subsoils impede root growth, causing reduced plant vigour and poorer water-use efficiency as roots have limited access to water and nutrients, especially in the subsoil...