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Michael Slattery

Project title:

Tine geometry influence of implements passing through cereal crop residue.

Brief description of project:

Australian grain producers must continue to reduce production costs and remain economically viable while also protecting and improving their most valued asset, their land resource. For continued adoption of for sustainable farming practice, there is a need to improve seeding and tillage implements that can effectively deal with large quantities of crop residue that is so valuable to the practice of conservation farming.

This research is investigating the various geometry factors and spatial arrangements associated with Australian broadacre tined, tillage and seeding machinery that influence the handling of crop residues. Wheat stubble has been chosen for the evaluation of the tine parameters as this is generally found to be one of the most difficult residues to handle. The research includes evaluation of tine length, shank shape, shank cross section, tillage points and speed of operation using an individual tine in a number of heavy wheat crop residue conditions. Following this, favourable tine factors are selected and used to investigate the interactive effects on residue flow on the spatial arrangement of tines.

The results of this work will be used to provide manufactures and farmers with information in designing and choosing tillage equipment suitable to handle wheat crop residues effectively. It is expected that a number of factors such as shape and dimensions will be able to be optimised for wheat stubble providing farmers with machinery to more effectively handle heavy crop residues.

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