Evaluation of Urea Nitrogen Fertilizer Treated with Nutrisphere Polymer Additive to Increase Fertilizer Efficiency

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. The Nutrisphere polymer additive is added to urea or urea containing nitrogen fertilizers.


Guy Lafond, Agriculture and Agri-Food Canada
Indian Head Research Farm
Phone: 306-695-5220
Box 760, RR 1 Government Road
Indian Head, SK
S0G 2K0