Widespread field trials are generating information that will help grain growers decide which strategic tillage methods may be best suited to different soil types on their farms. The first year of Grains Research and Development Corporation (GRDC) Ripper Gauge trials across the Western Australian grain belt showed deep ripping to a depth of 60 cm generally produced the highest grain yields on sandy soils, and more intensive tillage treatments tended to produce the best results on gravel-based soils.
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