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DOI: | doi:10.2135/cropsci2013.03.0145 |
Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/54/1/366 Last checked: 04/18/2016 https://dl.sciencesocieties.org/publications/cs/pdfs/54/1/366 Last checked: 11/07/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Geng, Xingyuan;
Guillard, Karl;
Morris, Thomas F. |
Author Affiliation: | Dep. of Plant Science and Landscape Architecture, Univ. of Connecticut, Storrs, CT |
Title: | Relating turfgrass growth and quality to frequently measured soil nitrate |
Section: | Turfgrass science Other records with the "Turfgrass science" Section
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Source: | Crop Science. Vol. 54, No. 1, January/February 2014, p. 366-382. |
Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
# of Pages: | 17 |
Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/54/1/366 Last checked: 11/07/2016 Notes: Abstract only is within a https://dl.sciencesocieties.org/publications/cs/articles/54/1/366?show-t-f=tables&wrapper=no Last checked: 11/07/2016 Notes: Tables only https://dl.sciencesocieties.org/publications/cs/articles/54/1/366?show-t-f=figures&wrapper=no Last checked: 11/07/2016 Notes: Figures only |
Keywords: | TIC Keywords: Chemical soil analysis; Clipping weight; Color evaluation; Festuca arundinacea; Nitrogen fertilization; Poa pratensis
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Abstract/Contents: | "Currently, there is no soil-based N test used to guide N fertilizer recommendations for turfgrass. This study was conducted across 3 yr in Connecticut to determine if frequent measurement of soil nitrate-N (NO3-N) could be used to estimate color, density, clippings yield, clippings total N concentration, and clippings N uptake in Kentucky bluegrass (Poa pratensis L.) and tall fescue (Festuca arundinacea Schreb.) lawns. Randomized complete block field experiments were set out on the two species with nine N rates. Soil cores and clippings were collected at 2-wk intervals from May through October and analyzed for concentrations of NO3-N and total N, respectively. Turfgrass color was measured with chlorophyll and normalized difference vegetative index meters, and shoot count density was measured after the last sampling. Significant (p < 0.001) Cate-Nelson, linear-plateau, and quadratic-plateau models were observed for all relative measures of turfgrass growth and quality as a function of soil NO3-N concentrations. The critical soil NO3-N concentrations for the three models that indicated the beginning of a plateau response or marked the Cate-Nelson change point between likely or unlikely response ranged from 3.7 and 18.0 mg kg-1 for Kentucky bluegrass and from 2.5 and 10.1 mg kg-1 for tall fescue. Probability plots indicated a high likelihood of acceptable turfgrass responses at the lower range of the critical concentrations suggested by the Cate-Nelson model. These results suggest that frequent measurement of soil NO3-N may help to guide N fertilization of Kentucky bluegrass and tall fescue when managed as lawns." |
Language: | English |
References: | 48 |
Note: | Partial reprint appears in 2014 Annual Turfgrass Research Report [Connecticut], 2015, p. 96 Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Geng, X., K. Guillard, and T. F. Morris. 2014. Relating turfgrass growth and quality to frequently measured soil nitrate. Crop Sci. 54(1):p. 366-382. |
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| DOI: doi:10.2135/cropsci2013.03.0145 |
| Web URL(s): https://dl.sciencesocieties.org/publications/cs/articles/54/1/366 Last checked: 04/18/2016 https://dl.sciencesocieties.org/publications/cs/pdfs/54/1/366 Last checked: 11/07/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2211522a |
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