Main content

Longevity of Turf Response to Urea, Coated Urea, and Blends – 2012 trial

Show full item record

Title: Longevity of Turf Response to Urea, Coated Urea, and Blends – 2012 trial
Author: Lyons, E.; Jordan, K.; Carey, K.
Department: Department of Plant Agriculture
Abstract: The objective of this research project was to quantify turf response to a one-time application of urea-based fertilizers on Kentucky bluegrass turf on a soil rootzone. The longevity of turf when treated with urea, coated urea, and various blends was analyzed. Turf performance was assessed through visual ratings for colour, quality, density, and uniformity as well as through the use of a normalized-difference vegetation index (NDVI). Growth of shoots was measured through dry weights of clipping collections taken periodically throughout the experiment.All treatments gave a significant improvement in colour and growth compared to the untreated control. The fertilizer effects were observable within a week after treatment by the canopy reflectance data, and persisted in significant amounts until more than 10 weeks after treatment. The average gain of fertilized treatments over control was at least 2 ranks on the visual colour rating scale (6 to 8), or about 0.07 units on the NDVI. There were significant treatments differences in both strength of response and days to maximum release. The release across all treatments was stronger and slower in 2012 than in 2011. The pattern observed in 2012 was very different than the pattern observed in 2011.
URI: http://hdl.handle.net/10214/12569
Date: 2012
Rights: Attribution-NonCommercial-NoDerivs 2.5 Canada
Citation: Lyons, E., Jordan, K., Carey, K. 2012. Longevity of turf response to urea, coated urea, and blends – 2012 trial. Agrium Advanced Technologies.


Files in this item

Files Size Format View Description
Lyons_et_al_G2012_05_2012.pdf 326.7Kb PDF View/Open PDF of research report

This item appears in the following Collection(s)

Show full item record

Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada