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| Web URL(s): | https://scisoc.confex.com/scisoc/2017am/webprogram/Paper108823.html
Last checked: 10/13/2017 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Wolfe, Joseph C.;
Baldwin, Christian M.;
Owusu-Adom, Kwame;
Ou, Ling |
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| Author Affiliation: | Wolfe and Owusu-Adom: Scotts Miracle Gro, Marysville, OH; Baldwin: Scotts Co., The, Marrysville, OH; Ou: Botany and Plant Pathology, Purdue University, West Lafayette, IN |
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| Title: | Correlating field, greenhouse, and laboratory measurements of nitrogen release by controlled-release fertilizers |
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| Section: | C05 Turfgrass Science
Other records with the "C05 Turfgrass Science" Section
Turf nutrition, soils-rootzones and water quality (includes student competition)
Other records with the "Turf nutrition, soils-rootzones and water quality (includes student competition)" Section
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| Meeting Info.: | Tampa, Florida: October 22-25, 2017 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2017, p. 108823. |
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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: Controlled release fertilizers; Longevity; Nitrogen losses; Release rate; Research priorities
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| Abstract/Contents: | "Turfgrass managers often apply controlled-release fertilizers (CRFs) to deliver sufficient nitrogen (N) to the turfgrass stand while minimizing N losses via volatilization, surface runoff, and/or leaching. In order to determine the longevity of a CRF, N release curves are often generated in controlled laboratory conditions in a water dissolution test; at present, however, there is a lack of research correlating data collected from these experiments with data collected under actual or simulated field conditions. Therefore, the objectives of this research were to generate N release curves in field, greenhouse, and laboratory settings and to correlate N release rates across multiple methods and environments. Nitrogen release was evaluated on four polymer-coated sulfur-coated CRFs with an estimated N release timing of 45, 90, and 120d. Five studies were completed from 2016 to 2017. A field study was conducted from 29 June 2016 to 29 April 2017 on a stand of perennial ryegrass (Lolium perenne L.). Two greenhouse studies were conducted on Kentucky bluegrass (Poa pratensis L.) and bermudagrass (Cynodon dactylon L.). For Kentucky bluegrass, temperatures were set to a day/night of 24/18° C. For bermudagrass, temperatures were set to a day/night of 32/27° C. Two water dissolution tests were conducted at a constant room (18° C) and elevated (60° C) temperature with continuous agitation at 100rpm. For both field and greenhouse studies, prills were placed in a mesh bag at a rate of 1 g per bag and incorporated into the turf canopy." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"58-7" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wolfe, J. C., C. M. Baldwin, K. Owusu-Adom, and L. Ou. 2017. Correlating field, greenhouse, and laboratory measurements of nitrogen release by controlled-release fertilizers. Agron. Abr. p. 108823. |
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Last checked: 10/13/2017 |
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