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 soil compounds.

Cooperators:
AB-26F: Dick Puurveen - University of Alberta, Sustainable Resources Department, 761 General Services Bldg, Edmonton, AB, T6G 2H1; 780-988-5454; puurveen@ualberta.ca