crp, pasture, haying, grazing, herbicide restrictions
Residue tolerances are established for grazing and harvesting hay. The interval between application and harvest may specify lactating dairy or slaughter. In situations where CRP is approved for haying or grazing, the field may have been spot treated for noxious weeds. If the interval is restrictive for hay harvest, it may be possible to omit those patches from the harvest.
Wrage, Leon J. and Deneke, Darrell L., "Haying and Grazing Herbicide Restrictions for Pasture and CRP" (2003). SDSU Extension Extra Archives. 342.