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Published August 15, 2012, 07:52 AM

Herbicide concerns after drought

Herbicides may leave residues in the soil after a drought, and it is important for growers to be aware of this and what they can do to prevent carryover to next year’s crop. Herbicides break down in the soil primarily through microbial activity and, for atrazine and some residual SU herbicides, through chemical processes. Microbial activity and herbicide degradation is greatest when soils are moist during the growing season.

By: Christina Rittenbach: NDSU Extension Service, The Jamestown Sun

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