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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/77/1/AJ0770010176
Last checked: 12/09/2016
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Branham, B. E.;
Wehner, D. J.;
Torello, W. A.;
Turgeon, A. J. |
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| Author Affiliation: | Branham: Assistant Professor, Department of Crop and Soil Science, Michigan State University, East Lansing, Michigan; Wehner: Assistant Professor, Horticulture Department, University of Illinois, Urbana, Illinois; Torello: Assistant Professor, Department of Plant and Soil Science, University of Massachusetts, Amherst Massachusetts; Turgeon: Research Director, Tru-Green Corporation, East Lansing, Michigan |
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| Title: | A microecosystem for fertilizer and pesticide fate research |
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| Source: | Agronomy Journal. Vol. 77, No. 1, January/February 1985, p. 176-180. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Pesticide fate; Nitrogen fate; Volatility; Microenvironments; Nitrogen fertilization; Leaching
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| Abstract/Contents: | "A microecosystem was designed to study the behavior of pesticides, fertilizers, or related compounds applied to plant stands. The system consists of three parts: a brass base that holds the plant growth media, a glass atmospheric chamber that rests on the base, and a set of analytical traps. The brass base is fitted with a porous ceramic plate so that tension can be applied to the water in the growing media. Air enters the bottom of the glass atmospheric chamber and exits through the top into appropriate trapping systems to recover volatilized pesticides, ammonia, or metabolized 14CO2 from labeled compounds. A port at the base of the chamber allows collection of leachate. The microecosystem was evaluated by applying N sources or a pesticide to intact turfgrass profiles and monitoring the fate of the applied compound. Leaching and volatilization losses of N ranged from 0 to 17% and 0.1 to 17% of the applied N, respectively, depending on N source, soil conditions, and whether tension was applied to the base of the system. Three weeks after the application of radiolabeled diazinon [O,O-diethyl-O-(2-isopropyl-4-methyl-6-primidinyl) phosphorothiote] to a turf, 47% of the label remained in the form of the parent compound, 22% had been metabolized and lost as 14CO2, 1% had leached through the profile, 2% had been lost through volatilization, and 28% remained in the soil as a metabolite or in unextractable compounds. The microecosystem has proven to be an invaluable tool for turfgrass research and should be useful for fertilizer and pesticide fate studies with other crops." |
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| Language: | English |
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| References: | 17 |
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| See Also: | Other items relating to: MOVE |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Branham, B. E., D. J. Wehner, W. A. Torello, and A. J. Turgeon. 1985. A microecosystem for fertilizer and pesticide fate research. Agron. J. 77(1):p. 176-180. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/77/1/AJ0770010176
Last checked: 12/09/2016
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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