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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/20/1/JEQ0200010209
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Lym, Rodney G.;
Swenson, Orval R. |
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| Author Affiliation: | Lym, Crop and Weed Sciences Dep., North Dakota State Univ., Fargo, Swenson, AGSCO. |
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| Title: | Sulfometuron persistence and movement in soil and water in North Dakota |
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| Source: | Journal of Environmental Quality. Vol. 20, No. 1, January-March 1991, p. 209-215. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| Keywords: | TIC Keywords: Sulfometuron; Leaching; Persistence; Hydrolysis
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| Abstract/Contents: | "The lateral movement, soil persistence and aqueous hydrolysis of sulfometuron [2-([{[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]} amino]sulfonyl)-benzoic acid] was evaluated. Sulfometuron applied at 140 g a.i. ha-1 from slopes to nontarget areas was minimal and was not detected in the 0-to-30-cm-soil depth, when sampled up to 120 cm downslope from the treated area on 2, 8, or 16% slopes 1 yr after treatment. The highest sulfometuron concentration found downslope from the treated area was less than 1 micro g kg-1 regardless of the slope. Sulfometuron moved beyond the soil column (70 cm deep) in Fairdale loam [fine-loamy, mixed (calcareous), frigid, Mollic Udifluvents], Felor silty clay loam (fine-loamy, mixed, Typic Agriborolls), and Barnes stony loam (fine-loamy, mixed, Udic Haploborolls) soils when leached with 45.7 cm of water for 48 h compared to only 35 to 50 cm deep when leached with the same amount of water over 9 wk. Sulfometuron degradation increased as soil temperature and moisture increased. Sulfometuron was detected for an average of 429 d in Felor silty clay loam at pH 6.1, 8 degrees C, and 45% field capacity but only 218 d in the same soil at 90% field capacity and 16 degrees C. Degradation was slower in Renshaw and Sioux sandy loam [(undifferentiated soil mixture) fine-loamy over sandy or sandy skeletal, mixed Unic Haploborolls and sandy-skeletal, mixed Udortheutic Haploborolls] with a pH 7.4 and averaged > 700 d, regardless of environmental conditions. Sulfometuron hydrolysis was similar regardless of solution pH with an average of 63% 14C-sulfometuron remaining after 28 d in water at pH 5,7, and 9. The average half-life of 14C-sulfometuron was 31 and 65 d in ultraviolet-irradiated and dark control samples, respectively." |
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| Language: | English |
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| References: | 13 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lym, R. G., and O. R. Swenson. 1991. Sulfometuron persistence and movement in soil and water in North Dakota. J. Environ. Qual. 20(1):p. 209-215. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/20/1/JEQ0200010209
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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