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.

IPNI-2008-CAN-SK40

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. Justification The use of polymer additives to regular soluble fertilizers has been shown to increase the uptake of fertilizer nutrients into target crops. Read more


Year of initiation:2008
Year of completion:2010
Map:

Interpretive Summary

This project, at the Indian Head Research Farm near Indian Head, Saskatchewan, consists of three experiments comparing regular granular urea, urea treated with Nutrisphere-N® (a polymer coating), and Super Urea® (including both urease and a nitrification inhibitors) at 45, 90 and 135 kg N/ha. All N treatments are side-banded at planting of the crops and in the spring. The experiments were conducted on spring wheat, barley and canola.

This project, at the Indian Head Research Farm near Indian Head, Saskatchewan, consists of three experiments comparing regular granular urea, urea treated with Nutrisphere-N® (a polymer coating), and Super Urea® (including both urease and nitrification inhibitors) at 45, 90, and 135 kg N/ha. The experiments were conducted on spring wheat, barley, and canola. The study was initiated in April 2008, and repeated in 2009, 2010, and 2011.

This project, at the Indian Head Research Farm near Indian Head, Saskatchewan, consists of three experiments comparing regular granular urea, urea treated with Nutrisphere-N® (a polymer coating), and Super Urea (including both urease and nitrification inhibitors) at 45, 90, and 135 kg N/ha. The experiments were conducted on spring wheat, barley, and canola. This study was initiated in April 2008, repeated in 2009 and 2010, and will be conducted for a fourth year in 2011.

This project consists of three experiments comparing regular granular urea, urea treated with Nutrisphere-N® (a polymer coating) and Super Urea (including both urease and nitrification inhibitors) at 45, 90, and 135 kg N/ha. The experiments were conducted on spring wheat, barley, and canola. This study was initiated in April 2008, repeated in 2009, and will be conducted for a third year in 2010. In 2009, growing conditions were excellent at the Indian Head Research Farm.

This project consisted of three experiments each comparing three forms of N fertilizer including regular granular urea, Nutrisphere®-treated urea, and Super Urea. The three experiments were conducted on spring wheat, barley, and canola. This study was initiated in April 2008 and it is planned to be repeated in 2009. In wheat and barley, the three forms of N were applied at 45, 90, or 135 kg N/ha. All N was side-banded 2 in. to the side of the seed row using a no-till seed drill.

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Updates & Reports

2010

2010 Annual Report

2008

Project Description


Project Leader

Guy Lafond, Agriculture and Agri-Food Canada


Project Cooperators

Claire Langlois
Dick Puurveen
Brian Hellegards


IPNI Staff

T. Jensen


Location

Americas \ Northern America \ CAN \ Saskatchewan


Topics

4r rate, 4r source, nutrient management

barley, rapeseed (canola), wheat

Nitrogen (N)