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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hatterman-Valenti, H. M.;
Christians, N.;
Owen, M. D. K. |
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| Author Affiliation: | Iowa State Univ. |
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| Title: | The effect of nozzle type on spray swath deposition during turfgrass application |
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| Meeting Info.: | Held: November 1-6 1992, Minneapolis, MN |
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| Source: | Agronomy Abstracts. 1992, p. 170. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Herbicide application; Spraying nozzles; Spray guns
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| Abstract/Contents: | "Concern about spray movement during turfgrass herbicide applications has prompted much of the lawn care industry to use spray gun and swirlchamber nozzles that produce large droplets. This study was designed to determine the variation in spray swath deposition during postemergence herbicide applications to turfgrass using three nozzle types. The nozzles used were the XR8004 VS flat fan, RA-6 Raindrop swirl chamber, and Lesco spray gun. Mean application volume rates were 187, 374, and 1122 L ha-1, respectively. A CO2-pressurized backpack sprayer was used to apply the triethylamine salt of triclopyr at 1.7 kg a.e. ha-1 and a 1% w:v Flurescein dye. Samples were analyzed using a Turner fluorometer. Significant differences found in the percentage of applied volumes among collectors and nozzle types. The mean percentage variation from the applied volume rates werre 94.7 for the crystallizing dishes and 19.6 for the grass plugs. The mean percentage variation from the applied volume rates for the flat fan, swirlchamber, and spray gun were 69.9, 50.2, and 51.3, respectively. These results indicate that although the output for all nozzle types varied little from expected for the crystallizing dish collector, the amount of spray remaining on the foliage (grass plugs) was much lower, especially with spray nozzles that produce large droplets." |
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| Language: | English |
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| References: | 4 |
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| See Also: | See also related dissertation, Spray Deposition and Drift During Postemergence Herbicide Applications to Turfgrass and Annual Flowers, 1993, R=30747. R=30747 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hatterman-Valenti, H. M., N. Christians, and M. D. K. Owen. 1992. The effect of nozzle type on spray swath deposition during turfgrass application. Annu. Meet. Abstr. p. 170. |
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