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DOI:10.2134/cftm2015.0189
Web URL(s):https://acsess.onlinelibrary.wiley.com/doi/10.2134/cftm2015.0189
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2134/cftm2015.0189
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Publication Type:
i
Refereed
Author(s):Miller, G. L.; Earlywine, D. T.; Braun, R.; Fry, J. D.; Kennelly, M. M.
Author Affiliation:Miller and Earlywine: Division of Plant Sciences, Univ. of Missouri, Columbia, MO; Braun and Fry: Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State Univ., Manhattan, KS; Kennelly: Dep. of Plant Pathology, Kansas State Univ., Manhattan, KS
Title:Influence of nitrogen source and application timing on large patch of zoysiagrass
Section:Applied turfgrass science
Other records with the "Applied turfgrass science" Section
Source:Crop, Forage and Turfgrass Management. Vol. 2, No. 1, December 2016, p. 1-9.
Publishing Information:Madison, Wisconsin: American Society of Agronomy and Crop Science Society of America
# of Pages:9
Keywords:TIC Keywords: Ammonium sulfate; Application timing; Calcium nitrate; Comparisons; Cultural methods; Disease profile; Golf fairways; Percent living ground cover; Rhizoctonia blight; Rhizoctonia solani; Seasonal variation; Soil temperature; Transition zone; Urea; Zoysia
Abstract/Contents:"Large patch of zoysiagrass (Zoysia spp.), caused by Rhizoctonia solani AG2-2 LP, is a troublesome disease on golf course fairways in the upper transition zone of the United States. Turfgrass managers incur significant fungicide costs to control the disease over large acreages, and integrating cultural practices into an overall scheme of disease management may result in reduced inputs. Our objective was to assess the impact of applying different nitrogen sources at defined soil temperature thresholds during the fall and spring infection periods on large patch severity in field experiments conducted in Kansas and Missouri. From 2013 to 2015, ammonium sulfate [(NH4)2SO4], calcium nitrate [Ca(NO3)2], and urea were applied at 0.75 lb nitrogen (N)/1000 ft2 when 5-day 2-inch soil temperatures reached 60 or 70┬░F in the spring or declined to 70┬░F in the fall. Summer applications of urea at 0.5 lb N/1000 ft2 were utilized as a standard for comparison, with all treatments receiving a total of 1.5 lb N/1000 ft2 per year. In spring 2014, when large patch severity was greatest, percent green cover was higher in ammonium sulfate treatments compared with urea and the standard summer program in Missouri, and higher in ammonium sulfate-treated plots compared with calcium nitrate- and urea-treated plots in Kansas. Although the effect was not consistent among sites, spring nitrogen applications made during the large patch infection period did not result in higher large patch severity than the standard summer fertilization schedule."
Language:English
References:23
Note:Equation
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Miller, G. L., D. T. Earlywine, R. Braun, J. D. Fry, and M. M. Kennelly. 2016. Influence of nitrogen source and application timing on large patch of zoysiagrass. Crop, Forage and Turfgrass Management. 2(1):p. 1-9.
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DOI: 10.2134/cftm2015.0189
Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2134/cftm2015.0189
    Last checked: 02/07/2024
    Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2134/cftm2015.0189
    Last checked: 02/07/2024
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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