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

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dc.contributor.author Lyons, E.
dc.contributor.author Jordan, K.
dc.contributor.author Carey, K.
dc.date.accessioned 2018-02-28T20:25:05Z
dc.date.available 2018-02-28T20:25:05Z
dc.date.issued 2012
dc.identifier.citation Lyons, E., Jordan, K., Carey, K. 2012. Longevity of turf response to urea, coated urea, and blends – 2012 trial. Agrium Advanced Technologies. en_US
dc.identifier.other 256139
dc.identifier.uri http://hdl.handle.net/10214/12569
dc.description.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. en_US
dc.description.sponsorship Agrium Advanced Technologies en_US
dc.language.iso en en_US
dc.publisher Guelph Turfgrass Institute en_US
dc.relation.ispartofseries GTI Annual Research Reports;26
dc.rights Attribution-NonCommercial-NoDerivs 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ *
dc.subject Guelph Turfgrass Institute en_US
dc.subject 2012 en_US
dc.subject Annual reports en_US
dc.subject urea en_US
dc.subject fertilizer en_US
dc.subject NDVI en_US
dc.subject Kentucky bluegrass en_US
dc.subject longevity en_US
dc.subject coated urea en_US
dc.subject blends en_US
dc.subject rootzone en_US
dc.subject home lawn en_US
dc.subject Agrium Advanced Technologies en_US
dc.title Longevity of Turf Response to Urea, Coated Urea, and Blends – 2012 trial en_US
dc.type Report en_US
dc.degree.department Department of Plant Agriculture en_US


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