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| DOI: | https://doi.org/10.21273/HORTTECH04837-21 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/31/4/article-p470.xml
Last checked: 03/01/2022
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/31/4/article-p470.xml
Last checked: 03/01/2022
Requires: PDF Reader
Notes: Direct download |
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| Publication Type:
| Refereed |
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| Author(s): | Shaddox, Travis Wayne;
Unruh, Joseph Bryan |
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| Author Affiliation: | Shaddox: Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY; Unruh: West Florida Research and Education Center, University of Florida, Jay, FL |
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| Title: | Determining nitrogen fertilizer cost using turfgrass response |
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| Section: | Reports
Other records with the "Reports" Section
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| Source: | HortTechnology. Vol. 31, No. 4, August 2021, p. 470-478. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 9 |
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| Keywords: | Author-Supplied Keywords: Bermudagrass; Quality; Longevity
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| Abstract/Contents: | "Numerous nitrogen (N) sources are used in turfgrass management and vary from soluble to slow-release. Determining the least expensive N source can be confusing for consumers. Price per ton and price per pound N are common price comparison methods. An improved approach could use longevity of the N source to balance the price. The objective of this study was to determine the longevity of turfgrass response to N sources and to determine the cost to achieve such responses. This study was conducted in Ft. Lauderdale and Jay, FL, from 1 Jan. to 31 Dec. 2018 on 'Riley's Super Sport' (CelebrationĀ®) bermudagrass (Cynodon dactylon). Treatments included nontreated turfgrass, urea, ammonium sulfate, stabilized urea, methylene urea, ureaformaldehyde, two natural organics, sulfur-coated urea, and two polymer-coated urea fertilizers. Treatments were arranged in a split-plot design with N sources as whole plots and N rate (N applied at 49 and 98 kgĀ·ha-1 every 4 months) as subplots. Turf quality was recorded on a scale of 1 to 9, where 1 = dead/brown turf and quality, 6 = minimal acceptable, and 9 = optimal healthy/green turf. Turf quality ratings were recorded weekly and used to determine response longevity (days quality ā„6.0) and area under the turfgrass response curve (AUTRC). Urea resulted in response longevity greater than or equal to other N sources during each season except when applied at 98 kgĀ·ha-1 of N during the fall fertilizer cycle in Jay. Natural organics were ā
6-fold more expensive than urea in Jay and Ft. Lauderdale using turfgrass response longevity and AUTRC. Urea and sulfur-coated urea were the least expensive soluble and slow-release N source, respectively, using dollars per pound N, dollars per acre per day, and dollars per acre per quality-day during each fertilizer cycle and annual average in Jay and Ft. Lauderdale. No evidence was found supporting the use of turfgrass response as a more effective method of determining fertilizer cost than dollars per pound N." |
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| Language: | English |
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| References: | 22 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Shaddox, T. W., and J. B. Unruh. 2021. Determining nitrogen fertilizer cost using turfgrass response. HortTechnology. 31(4):p. 470-478. |
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| DOI: https://doi.org/10.21273/HORTTECH04837-21 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/31/4/article-p470.xml
Last checked: 03/01/2022
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/31/4/article-p470.xml
Last checked: 03/01/2022
Requires: PDF Reader
Notes: Direct download |
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MSU catalog number: b2917674a |
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