Evaluation of Phosphate and Nitrogen Fertilizers Treated with Polymer Additives to Increase Fertilizer Efficiency

The Richardson International Kelburn, MB research and demonstration farm was the site of experiments evaluating Avail additive for both dry granular and liquid phosphate fertilizers. there were also experiments evaluating Nutrisphere additive for urea N fertilizer.


30 Apr 2008

Project Description

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.

MB-21F: Brian Hellegards - James Richardson International, Kelburn Research/Demonstration Farm, 1228 Kelburn Road, Howden, MB, R5A 1K2;204-269-2722; kelburn@jri.ca