Does salt as a weed killer have to be mixed with water or spread like fertilizer?

Salt applied either as a water-diluted mix or as granules spread like fertilizer can kill weeds. In the first instance, the saltwater may be poured or sprayed while in the second instance the salt may be cast like sowing seeds. The choice will depend upon the extent of the weed growth and the time of the applicant since the granules must be followed by a good hosing or rainfall event in order to be efficacious.