This Grains Research and Development Corporation (GRDC) factsheet explains inclusion ripping, a deep tillage method in which topsoil is dropped into the ripped subsoil layer to improve rooting conditions in sandy and compacted soils. It was written by Chris Saunders, Therese McBeath, Jack Desbiolles and Wayne Parker. The factsheet outlines how inclusion plates fitted behind ripper tynes can enhance subsoil structure by mixing nutrient-rich topsoil into deeper layers. Key factors affecting performance include plate design and depth, ripping speed, soil moisture and type. While inclusion plates increase draught force, optimised plate and point combinations can reduce power demand [PDF 3.7 MB, 6 pages].#
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