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Tillage system differences in re-cropping to pursuit (Imazathapyr) residues

Date

1995-02-23

Authors

Derksen, D.A.

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Research was conducted from 1992 to 1994 at Indian Head, to determine the residual activity of imazethapyr on wheat and canola grown in zero- and conventional-tillage systems. Crop injury was evident one year after application, but not two. Canola was affected more than wheat and this was observed to a greater extent in conventional tillage. Further research is required to determine if this was due to greater herbicide decomposition or adsorption in the zero-tillage system, or to the physical separation of crop from herbicide residues.

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Soils and Crops Workshop

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