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| Web URL(s): | https://listings.lib.msu.edu/iowat/1988.pdf#page=29
Last checked: 01/12/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Agnew, M. L.;
Christians, N. E.;
Moore, R. W. |
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| Author Affiliation: | Agnew: Assistant Professor, Christians: Professor, and Moore: Turfgrass Graduate Student and Research Associate, Iowa State University |
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| Title: | Summer slow-release nitrogen sources comparison study |
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| Source: | 1988 Iowa Turfgrass Research Report. 1988, p. 25-26. |
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| Publishing Information: | Ames, Iowa: Iowa State University Extension |
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| # of Pages: | 2 |
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| Series: | FG-454 |
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| Keywords: | TIC Keywords: Poa pratensis; Fertilizer evaluation; Nitrogen fertilizers; Nitrogen response
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| Abstract/Contents: | "The purpose of this study was to compare eight slow-release N sources for the summer application of nitrogen. The turf is Glade Kentucky bluegrass, established in September 1984. Treatments were initiated in the spring of 1985 and will continue for several years. Individual treatment cells measured 5 ft x 5 ft and were randomized in complete block design with three replications. The turf was mowed at 2 inches and water was applied to prevent drought stress. Treatments include eight slow-release N sources applied at 2 lbN/1000 ft2/seasona of urea (46-0-0) split into two equal applications on April 10 and September 20. One additional treatment, which included combinations of Powered Blue and urea, was applied for comparison. This 0.25 lb N treatment applied 0.25 lb N (Powder Blue)/0.75 lb N (urea in April, 0.5 - 0.5 lb N as Power Blue/urea in may, 0.5 lb N (Powder Blue)/0.5 lb N (urea) in August, and 0.75 lb N (Powder Blue)/0.75 lb N (urea) in September. The N-Sure treatment was established in 1986, while the other treatments were established in 1985. Visual quality data were collected monthly from May through October. All treatments, except Powder Blue, had an overall acceptable quality level with SCU/CIL performing better for the entire season. Shoot density and thatch determinations were made once during 1987. There were not differences in shoot density between treatments on June 23 (1 month after application of slow-release product). In addition, there was only a slight difference in thatch depth between the treatments (2.5 mm = 0.1 inch). SCU/TVA and SCU/CIL were the greatest thatch producers of the fertilizer sources." |
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| Language: | English |
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| References: | 0 |
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| Note: | "July, 1988"
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Agnew, M. L., N. E. Christians, and R. W. Moore. 1988. Summer slow-release nitrogen sources comparison study. Iowa Turfgrass Res. Rep. p. 25-26. |
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| Web URL(s):
https://listings.lib.msu.edu/iowat/1988.pdf#page=29
Last checked: 01/12/2017
Requires: PDF Reader |
| 
MSU catalog number: SB 433 .A1 I55 |
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