The use of polymer additives to regular soluble fertilizers has been shown to increase the uptake of fertilizer nutrients into target crops. The mechanism of activity of the polymers is thought to slow down the reaction of the fertilizer nutrient ions and molecules with various soil compounds.

Cooperator:
SK-40F: Dr. Guy Lafond - Agriculture and Agri-Food Canada, Indian Head Research Farm, Box 760, RR#1 Government Road, Indian Head, Saskatchewan, S0G 2K0; 306-695-5220; lafond@agr.gc.ca;