In this investigation, paraquat, a bipyridinium herbicide was evaluated as solute in controlled release devices made of a hydrogel prepared from poly vinyl alcohol (PVA) and cross-linked by glutaraldehyde in different concentrations.
In this investigation, paraquat, a bipyridinium herbicidewas evaluated as solute in controlled releasedevices made of a hydrogel prepared from poly vinylalcohol (PVA) and cross-linked by glutaraldehyde indifferent concentrations.