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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou1001.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Goldsby, Anthony;
Keeley, Steven J. |
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| Author Affiliation: | Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, Kansas |
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| Title: | Nitrogen source and timing effect on non-structural carbohydrate status of 'midlawn' bermudagrass |
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| Section: | Soil biology, chemistry and plant nutrition
Other records with the "Soil biology, chemistry and plant nutrition" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 1001-1009. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Carbohydrates; Color; Controlled-release nitrogen; Cynodon dactylon; Fertilization timing; Nitrogen fertilizers; Polymer-coated urea; Sulfur-coated urea; Ureaformaldehyde; Visual evaluation
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| Cultivar Names: | Midlawn |
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| Abstract/Contents: | "Non-structural carbohydrates (NSC) are important for physiological plant health and for recovery from stress. Controlled-release nitrogen sources may moderate turfgrass vegetative growth, and thereby maximize NSC levels. They have the additional benefit of saving labor by allowing the total annual N to be applied in a single application. This study was conducted to determine the effect of various nitrogen source and timing combinations on NSC levels, turfgrass visual quality and color of 'Midlawn' bermudagrass growing in Manhattan, KS, USA. Nitrogen sources included two polymer-coated ureas (PCU), sulfur-coated urea (SCU), and urea formaldehyde (UF). Each N source was applied in single yearly applications at 196 kg N ha-1 in either April or August. A control treatment consisted of urea applied at 49 kg N ha-1 in May, June, July and August. Non-structural carbohydrate status was determined on a bimonthly basis over two years, by extracting two 10-cm dia. cores from each plot, defoliating, and measuring etiolated regrowth in a dark growth chamber. Turfgrass color and visual quality were rated on a monthly basis during the growing season. Over the two-year study, N source did not have a significant effect on bermudagrass NSC levels, turfgrass color, or visual quality. Timing of application, by contrast, had a significant impact on these parameters. August-applied N resulted in higher NSC levels on several sampling dates, along with improved color in late summer/early fall. August-applied N resulted in similar turfgrass color in the spring, compared with April-applied treatments, and resulted in improved bermudagrass visual quality in May 2006. If N is applied in a single annual application to bermudagrass, late-summer application is recommended." |
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| Language: | English |
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| References: | 23 |
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| Note: | Tables
Graphs
Partial reprint appears in Carolinas Green, March/April 2010, p. 16-17, with variant title "Nitrogen source and timing effect on non-structural carbohydrate status of midlawn bermudagrass" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Goldsby, A. L., and S. J. Keeley. 2009. Nitrogen source and timing effect on non-structural carbohydrate status of 'midlawn' bermudagrass. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 1001-1009. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou1001.pdf
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MSU catalog number: b2548899 |
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