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| Web URL(s): | http://elibrary.asabe.org/azdez.asp?JID=3&AID=5065&CID=aeaj2000&v=16&i=2&T=2&redirType=
Last checked: 10/10/2013
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| Publication Type:
| Refereed |
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| Author(s): | Smith, D. B.;
Oakley, D.;
Williams, E.;
Kirkpatrick, A. |
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| Author Affiliation: | Smith: Professor, Agricultural and Biological Engineering Department, Mississippi State University, Mississippi; Oakley, Williams, and Kirkpatrick: Student Workers, Agricultural and Biological Engineering Department, Mississippi State University, Mississippi |
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| Title: | Broadcast spray deposits from fan nozzles |
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| Section: | Power & machinery
Other records with the "Power & machinery" Section
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| Source: | Applied Engineering in Agriculture. Vol. 16, No. 2, March 2000, p. 109-113. |
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| Publishing Information: | St. Joseph, MI: American Society of Agricultural Engineers |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Broadcast spraying; Plant recovery; Nozzles; Granules; Irrigation uniformity
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| Abstract/Contents: | "Laboratory and field tests were conducted to evaluate the magnitude and uniformity of spray deposits from several fan nozzle types. The laboratory and field average percent spray recoveries were typically in excess of 80% and often exceeded 90%. Ninety-four percent of the field deposit coefficients of variation (CV) were larger than the corresponding laboratory CVs. The down-and-back @ 45Ā° nozzle orientation improved the uniformity of spray deposits in both laboratory and field tests. These comparative CV results confirm similar results from prior studies for other types of fan nozzles. Regression equations were developed to predict 'percent recovery' and 'CV' for both the laboratory and field data. The ratios of the maximum-to-minimum deposits from all treatments were found to be non-linearly related to the CVs of the deposits. A CV of 15% corresponded to a maximum-to-minimum deposit ratio of about 1.7 indicating that a CV of about 15% or less is a desirable goal for any liquid or granular application. Only one third of the original treatments had field CVs ā¤ 15% and, thus, were considered to be treatments that would be recommended to producers and applicators." |
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| Language: | English |
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| References: | 14 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Smith, D. B., D. Oakley, E. Williams, and A. Kirkpatrick. 2000. Broadcast spray deposits from fan nozzles. Appl. Eng. Agric. 16(2):p. 109-113. |
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| Web URL(s):
http://elibrary.asabe.org/azdez.asp?JID=3&AID=5065&CID=aeaj2000&v=16&i=2&T=2&redirType=
Last checked: 10/10/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 671 .A66 |
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