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


This research initiative will assess the efficacy of the Avail-P and Nutri-N technologies under a wide range of western Canada soil and cropping conditions. Research results under Canadian conditions are required for submission to the Canadian Food Inspection Agency (CFIA) - Fertilizer Division to register the Avail technology for use with liquid ammonium polyphosphate (10-34-0) fertilizer, and Nutrisphere technology for use with urea (46-0-0) fertilizer.