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Deep ripping: Correcting layers of high soil strength with deep tillage – Western region (Factsheet)

This Grains Research and Development Corporation (GRDC) factsheet explains how deep ripping can address soil compaction in sandy soils in Western Australian grain cropping systems. Deep ripping can place topsoil deeper in the profile, incorporate ameliorants and fertilisers into the subsoil, and lift subsoil clay to the surface to help manage water-repellent sands. Yield responses are generally greatest on deep sandy soils and smaller on heavier-textured soils. Other constraints such as water repellence, soil acidity and sodicity commonly co-occur and can limit deep ripping benefits. Drawing on research and grower experience, the factsheet shows that responses are most reliable where compaction is the main constraint and where ripping is done at suitable soil moisture. It outlines key considerations, including investigating the soil profile and soil types, ripping depth, machinery choice and the risk of wind erosion. The Ranking Options for Soil Amelioration (ROSA) tool, developed by the Western Australian Department of Primary Industries and Regional Development (DPIRD), can help assess the economics of different amelioration strategies and identify those most likely to deliver a strong return. Controlled traffic farming (CTF) is recommended to reduce the risk of re-compaction [PDF 634 KB, 8 pages]. #

  • Audience: RSP, tertiary students, landholders, SFSG, consultants
  • State: WA
  • Author/Editor: S Davies, W Parker, Q Knight, G Fosbery, C Saunders
  • Publisher: GRDC
  • Resource Type: Factsheet
  • Copyright Year: 2021
  • Not Provided
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Resource Last Updated: February 15, 2026

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