Full TGIF Record # 233634
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Web URL(s):https://web.archive.org/web/20160212064511/http://www.turfgrasssociety.eu/home/articles/code/407?headline=Reducing%20Green%20Waste%20and%20Nitrogen%20Use%20on%20Lawns%20with%20Grasscycling
    Last checked: 04/18/2016
    Access conditions: Item is within a limited-access website
    Notes: Guide page
Publication Type:
i
Refereed
Author(s):Zhang, Y.; Burger, D. W.; Harivandi, M. A.
Title:Reducing green waste and nitrogen use on lawns with grasscycling
Meeting Info.:Kristiansand, Norway: June 24-26, 2012
Source:3rd European Turfgrass Society Conference Proceedings. Vol. 3, 2012, p. Unknown.
# of Pages:0
Publishing Information:Angers, France: European Turfgrass Society
Keywords:TIC Keywords: Application rates; Clipping return; Clipping weight; Festuca arundinacea; Growth rate; Mowing tolerance; Nitrogen fertilization; Nitrogen level
Abstract/Contents:"Homeowners and landscape/turfgrass managers are adding unwanted green waste to municipal landfills and, potentially, overusing/wasting fertilizer by removing mowing clippings of lawn turfgrasses. Loss of applied nitrogen into groundwater and/or other waterways is of growing concern. Grasscycling, the mulching and immediate return of just-cut turfgrass leaves to the rhizosphere, shows promise in solving these problems by reducing green waste heading to landfills and reducing the amount of fertilizer needed on lawns. This study was undertaken to determine the effects of grasscycling on a tall fescue lawn. Specific questions include: 1) Is clipping yield affected?, 2) Is the quality/color of the turf affected? , 3) What is the fate of applied nitrogen? and 4) Whats the minimum amount of fertilizer that can be applied without reducing turf quality? A tall fescue (Schedonorus phoenix [Scop.] Holub. Syn., Festuca arundinacea Schreb.) research plot was established on the University of California, Davis campus. Two variables were introduced: 1) mowing technique (mulched clippings versus caught and removed clippings); and 2) rate of nitrogen fertilization (48, 96, and 192 kg N ha-1 y-1). Based on clipping yield data collected, we estimated 33, 48 and 87 kg N ha-1 y-1 were removed from plots receiving 48, 96, and 192 kg N ha-1 y-1, respectively. There was no significant difference in clipping yields throughout the year between the two mowing treatments. NDVI (Normalized Difference Vegetation Index) dropped below the acceptable level (0.6) during the winter and late-summer months for the 48 and 96 kg N ha-1 y-1 rates. The 192 kg N ha-1 y-1 rate never dropped below the 0.6 threshold. Soil Electrical Conductivity increased with increasing fertilizer rates. None of the other soil characteristic measured (e.g. organic matter, total N, total C, NO3- or NH4+) was affected by either the fertilizer or mowing treatments. When tall fescue was growing rapidly, very little, if any, nitrogen moved past the root-zone. Total nitrogen in leaf tissue increased as fertilizer rate increased during the summer months. Mowing technique did not affect total nitrogen in leaf tissue."
Language:English
References:Unknown
Note:Summary appears as abstract
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Y., D. W. Burger, and M. A. Harivandi. 2012. Reducing green waste and nitrogen use on lawns with grasscycling. Eur. Turfgrass Soc. Conf. Proc. 3:p. Unknown.
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Web URL(s):
https://web.archive.org/web/20160212064511/http://www.turfgrasssociety.eu/home/articles/code/407?headline=Reducing%20Green%20Waste%20and%20Nitrogen%20Use%20on%20Lawns%20with%20Grasscycling
    Last checked: 04/18/2016
    Access conditions: Item is within a limited-access website
    Notes: Guide page
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