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| DOI: | 10.2136/sssaj1984.03615995004800010035x |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/sssaj/pdfs/48/1/SS0480010191
Last checked: 12/07/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Hummel, N. W. Jr.;
Waddington, D. V. |
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| Author Affiliation: | Hummel: Assistant Professor, Dep. of Hortic., Iowa State Univ., Ames, IA; Waddington: Professor, Dep. of Agron., The Pennsylvania State Univ., University Park |
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| Title: | Division S-8-fertilizer technology and use: Sulfur-coated urea for turfgrass fertilization |
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| Source: | Soil Science Society of America Journal. Vol. 48, No. 1, January/February 1984, p. 191-195. |
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| Publishing Information: | Madison, Wisconsin: Soil Science Society of America |
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| # of Pages: | 6 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/sssaj/abstracts/48/1/SS0480010191
Last checked: 12/07/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Poa pratensis; Nitrogen fertilizers; Sulfur-coated urea; Slow-release fertilizers
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| Abstract/Contents: | "Three sulphur coated urea (SCU) materials were evaluated at different rates and timing of application for maintenance fertilization of 'Merion' Kentucky bluegrass (Poa pratensis L.). Two were SCU materials from the Tennessee Valley Authority: SCU-11 and SCU-25, having 11 and 25% 7-d dissolution rates, respectively. The third, CIL-30 (30% dissolution rate), was SCU prill from Canadian Industries Limited. Ammonium nitrate (AN), ureaform (UF), and isobutylidene diurea (IBDU) were also evaluated for comparison with SCU. The most uniform turfgrass response to SCU fertilization was produced by split applications of 245 kg N ha-1yr-1; and response to SCU-11 was less than that of SCU-25 and CIL-30. When SCU-25 and CIL-30 were applied at a rate of 245 kg N/ha in single fall applications, there was insufficient carry-over of residual N to maintain dark color throughout the growing season. During the first 2 y, release of N from SCU-11 tended to be too slow to maintain good season-long color, with only the single spring application of 245 kg N/ha maintaining good color throughout the summer. Response improved in the third year. Fertilization rates of 147 kg N ha-1yr-1 did not produce acceptable quality turf. Pellet recovery from the turf was inversely related to N recovery in plant tissue. Two months after application, SCU dissolution ranged from 91 to 97% for CIL-30, 60 to 80% for SCU-25, and 38 to 53% for SCU-11. Recovery of applied N in the clippings was highest for AN and CIL-30 with 49 to 59% and 50 to 56% recovery, respectively. Nitrogen recoveries of 42 to 52% and 25 to 37% were obtained for SCU-25 and SCU-11, respectively. Recovery was 22% for UF and 46% for IBDU. Response to IBDU compared favorably to SCU-25, while response to UF was less than from any other 245-kg split treatment." |
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| Language: | English |
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| References: | 21 |
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| See Also: | See also related article "Sulfur-coated urea for turfgrass fertilization" Soil Science Society of America Journal, 39(3) 1985, p. 11, R=131520. R=131520 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hummel, N. W. Jr., and D. V. Waddington. 1984. Division S-8-fertilizer technology and use: Sulfur-coated urea for turfgrass fertilization. Soil Sci. Soc. Am. J. 48(1):p. 191-195. |
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| DOI: 10.2136/sssaj1984.03615995004800010035x |
| Web URL(s):
https://dl.sciencesocieties.org/publications/sssaj/pdfs/48/1/SS0480010191
Last checked: 12/07/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .S65 |
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