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| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper99817.html
Last checked: 11/22/2016 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Bremer, Dale J.;
Braun, Ross |
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| Author Affiliation: | Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, KS |
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| Title: | Nitrous oxide emissions in turfgrass: Effects of irrigation amounts and nitrogen fertilizer types |
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| Section: | 5 minute rapid - USGA/GCSAA sponsored research
Other records with the "5 minute rapid - USGA/GCSAA sponsored research" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 99817. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Emissions; Fertilizer evaluation; Irrigation practices; Nitrogen fertilizers; Nitrous oxide; Slow-release fertilizers; Urea; Zoysia japonica
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| Cultivar Names: | Meyer |
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| Abstract/Contents: | "Nitrous oxide (N2O) is important greenhouse gases that has been implicated in global climate change and is the most important ozone-depleting substance in the atmosphere. Turfgrass systems are typically fertilized with nitrogen (N) and irrigated, which may result in significant N2O emissions. The development of management practices such as slow-release N fertilizer and/or deficit irrigation may mitigate N2O emissions, but also affect carbon sequestration in turf soils. Our objective was to quantify the magnitude and patterns of N2O emissions in turfgrass and determine how irrigation and N fertilization may be managed to reduce N2O emissions. A field study under a automated rainout shelter was conducted in Manhattan, KS from October 2014 to November 2016 on Meyer zoysiagrass (Zoysia japonica Steud.) maintained at 2.54 cm height. Two irrigation levels were implemented, a medium (66% evapotranspiration [ETo] replacement) and a medium-low (33% ETo replacement). The N-fertilization treatments included urea, slow-release (polymer-coated N), and an untreated no-N, total application was 97.6 kg N ha-1. N2O emissions were measured periodically by static chambers placed over the turf surface and gas chromatography. Anicillary measurements of soil moisture, temperature, and ammonium and nitrate were collected at each sampling event. Visual turf quality and green cover percentage calculated by digital images were measured during the summer. In the first year of measurements, urea fertilizer had higher peak N2O-N fluxes (ug N m-2/h-1) after fertilization and overall annual emissions than polymer-coated N-fertilizer and differences were negligible due to irrigation treatment. Responses of N2O fluxes to N fertilization and irrigation treatments, and cumulative N2O fluxes during the entire 2-yr study period will be reported." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"300-2" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bremer, D. J., and R. Braun. 2016. Nitrous oxide emissions in turfgrass: Effects of irrigation amounts and nitrogen fertilizer types. Agron. Abr. p. 99817. |
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Last checked: 11/22/2016 |
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