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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/84/6/AJ0840060946
Last checked: 12/14/2016
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| Publication Type:
| Refereed |
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| Author(s): | Peacock, Charles H.;
DiPaola, Joseph M. |
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| Author Affiliation: | Dep. Crop Science, North Carolina State University, NC |
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| Title: | Bermudagrass response to reactive layer coated fertilizers |
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| Source: | Agronomy Journal. Vol. 84, No. 6, November/December 1992, p. 946-950. |
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| Publishing Information: | Washington: American Society of Agronomy |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Fertilizers; Cynodon; Nitrogen fertilizers; Nitrogen; Shellac-coated urea; Slow-release fertilizers; Leaching
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| Abstract/Contents: | "Recent polymer chemistry research has introduced a material manufactured by a reactive layer coating (RLC) process which shows promise for minimizing N loss through leaching. Laboratory studies have shown that RLC coated ureas were successful at slowing N release and have potential as slow-release N fertilizers for turf. This field study compared `Tifway' bermudagrass (Cynodon dactylon L. Pers. X C. transvaalensis Burtt-Davey) response to RLC ureas having different coating weights (thicknesses) with other conventional N carriers. Bermudagrass turf quality (1-9 scale, 9=best) and shoot growth response observations were made over a 10-wk period to determine if various coating thicknesses would allow adequate N release to provide a response equivalent to other N sources. Best turf quality (7.4) for the 2-yr study was for RLC carriers that combined slow and intermediate release rate RLC ureas (12.5% or 10.8% coating + 7.2% coating) with urea. Overall turf quality was lowest (6.5) in 1987 for the RLC with the slowest release rate, a 12.5% coating (10 g N m-2), 9.9% RLC coating + urea (10 g N m-2), and urea (5 g N m-2). In 1988 the RLC with the slowest release had a 10.8% coating (10 g N m-2). Shoot growth rate in 1987 was greatest (11.9 mm wk-1) for the RLC material with a 7.2% coating at 10 g N m-2 and lowest for the RLC 12.5% coating (5.3 mm wk-1). By comparison, urea applied at 5 g N m-2 resulted in intermediate turf growth (9.4 mm wk-1). In 1988, shoot growth rate was greatest for the 10.8% RLC + 7.2% RLC + urea combination material applied at 10 g N m-2. Equivalent growth was noted for the urea + 9.9% RLC (5g n m-2) and sulfur coated urea (10 g N m-2) materials. Use of slow release RLC N carriers as turf fertilizers showed promise as a combination material with urea." |
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| Language: | English |
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| References: | 8 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Peacock, C. H., and J. M. DiPaola. 1992. Bermudagrass response to reactive layer coated fertilizers. Agron. J. 84(6):p. 946-950. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/84/6/AJ0840060946
Last checked: 12/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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