Full TGIF Record # 281222
Item 1 of 1
DOI:10.2135/cropsci2016.09.0767
Publication Type:
i
Refereed
Author(s):Bauer, Samuel J.; Horgan, Brian P.; Soldat, Douglas J.; Lloyd, Daniel T.; Gardner, David S.
Author Affiliation:Bauer: Univ. of Minnesota-Extension, Andover, MN; Horgan: Univ. of Minnesota-Horticultural Science, St. Paul, MN; Soldat and Lloyd: Univ. of Wisconsin-Madison, Madison, WI; Gardner: The Ohio State Univ., Columbus, OH
Title:Effects of low temperatures on nitrogen uptake, partitioning, and use in creeping bentgrass putting greens
Section:European Turfgrass Society Conference
Other records with the "European Turfgrass Society Conference" Section
Meeting Info.:Salgados, Portugal: June 5-8, 2016
Source:Crop Science. Vol. 57, No. 2, March/April 2017, p. 1001-1009.
Publishing Information:Madison, Wisconsin: Crop Science Society of America
# of Pages:9
Related Web URL:https://dl.sciencesocieties.org/publications/cs/abstracts/57/2/1001
    Last checked: 03/08/2017
    Notes: Abstract only
Keywords:TIC Keywords: Agrostis stolonifera; Ammonium sulfate; Application methods; Cold stress; Fall fertilization; Fertilizer evaluation; Golf green maintenance; Nitrogen uptake
Cultivar Names:L-93
Abstract/Contents:"Late-fall nitrogen (N) fertilization is commonly recommended for turfgrass nutrition in the Upper Midwest, although research identifying its efficiency and subsequent benefit is lacking for creeping bentgrass (Agrostis stolonifera L.). The objectives of this research were to evaluate the efficiency and agronomic benefits of late-fall N applications on creeping bentgrass putting greens. Silt loam and sand putting greens were established with 'L-93' creeping bentgrass 7 yr prior to this study in St. Paul, MN, and Madison, WI. Labeled 15N ammonium sulfate was applied to inground lysimeters at rates of either 25 or 50 kg N ha-1 in mid-October or mid-November 2009, and a spoonfeeding approach of 10 kg N ha-1 was applied in five equally spaced applications (totaling 50 kg N ha-1) between 25 Sept. and 15 Nov. 2009. The labeled 15N was used to quantify uptake and partitioning to verdure and thatch in the late fall and spring. The same treatments were applied to main plots with unlabeled ammonium sulfate to evaluate use, as determined by turfgrass quality, chlorophyll index, clipping yield, and N concentration. Nitrogen fertilizer applied up to mid-October increased quality, color, and yield prior to winter, while the benefit of mid-November applications was not apparent until the following spring; higher N rates increased these effects. The greatest cumulative clipping yields were associated with all 50-kg N ha-1 rates, and application timing was not a significant factor. Clipping N concentration increased following spoon-feeding and October applications in the fall, indicating good transport of N fertilizer to shoots prior to winter. The efficiency of 25- and 50-kg N ha-1 applications was similar under optimum weather conditions, but this efficiency was reduced in environments conducive to N loss and reduced plant uptake; precipitation, and cold temperatures. The most efficient use and consistent benefit was seen with the spoon-feeding approach"
Language:English
References:46
See Also:Interpretive summary appears in Golf Course Management, 85(11) November 2017, p. 78, R=291220. R=291220
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bauer, S. J., B. P. Horgan, D. J. Soldat, D. T. Lloyd, and D. S. Gardner. 2017. Effects of low temperatures on nitrogen uptake, partitioning, and use in creeping bentgrass putting greens. Crop Sci. 57(2):p. 1001-1009.
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DOI: 10.2135/cropsci2016.09.0767
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