While many herbicides have long cropping restrictions because they take a long time to break down, there are several herbicides that have a short half-life. Generally, herbicides like Sharpen (saflufenacil), 2-4D and Roundup products (glyphosate) break down fairly quickly in the soil and cause less problems with herbicide carryover.

Proven benefits of cover crops in a corn/soybean rotation have farmers re-evaluating their weed management programs. One critical risk to evaluate is residual herbicide use and potential carryover given the timing of cover crop seeding.