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Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/44/2/595 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/44/2/595 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Fagerness, Matthew J.;
Bowman, Daniel C.;
Yelverton, Fred H.;
Rufty, Thomas W. Jr. |
Author Affiliation: | Fragerness: Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, Kansas; and Bowman, Yelverton, and Rufty: Crop Science Department, North Carolina State University, Raleigh, North Carolina |
Title: | Nitrogen use in Tifway bermudagrass, as affected by trinexapac-ethyl |
Section: | Turfgrass science Other records with the "Turfgrass science" Section
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Source: | Crop Science. Vol. 44, No. 2, March/April 2004, p. 595-599. |
Publishing Information: | Madison, WI: Crop Science Society of America |
# of Pages: | 5 |
Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/44/2/595 Last checked: 11/16/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Nitrogen; Nitrogen use; Cynodon dactylon; Cynodon transvaalensis; Hybrid bermudagrasses; Trinexapac-ethyl; Nitrogen uptake; Leaching
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Cultivar Names: | Tifway |
Abstract/Contents: | "Nutrient movement from turfgrass systems into surface and ground water is a public concern. Data indicate that actively growing turf rapidly immobilizes applied N, thus restricting nutrient movement. It is possible, however, that growth suppression with plant growth regulators (PGRs) could reduce N demand and thus N uptake, resulting in greater leaching losses. An experiment was conducted with column lysimeters to investigate the effects of trinexapac-ethyl (TE) on nitrate leaching and N-use efficiency in Tifway bermudagrass (Cynodon dactylon x C. transvaalensis). The experiment was conducted in a growth chamber with day/night temperature set at 29/24°C and a 12-h photoperiod. Trinexapac-ethyl was applied twice at 4-wk intervals at 0.11 kg a.i. ha-1. Ammonium nitrate (AN) was applied at 50 kg N ha-1 2 wk [wks] after each TE application, and again 6 wk [wks] after the second TE application. Separate sets of columns received 15N-labeled AN for the first two applications. Irrigation was scheduled to provide a leaching fraction of ≅50%; leachate was collected after each irrigation and analyzed for nitrate and ammonium. Cumulative nitrate leaching was unaffected by TE after the first two N applications, but was reduce ≅60% by TE following the third N application. Trinexapac-ethyl reduced 15N allocation to clippings by ≅25% and increased 15N allocation to roots and rhizomes; total recovery of applied 15N in tissues was ≅65%. Results demonstrate chemical growth suppression with TE does not reduce N uptake or increase nitrate leaching from bermudagrass." |
Language: | English |
References: | 26 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Fagerness, M. J., D. C. Bowman, F. H. Yelverton, and T. W. Jr. Rufty. 2004. Nitrogen use in Tifway bermudagrass, as affected by trinexapac-ethyl. Crop Sci. 44(2):p. 595-599. |
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| Web URL(s): https://dl.sciencesocieties.org/publications/cs/articles/44/2/595 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/44/2/595 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 183 .C7 |
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