Persistence and bioactivity of metsulfuron-methyl in three soils

Ismail Sahid, B. A. Azlizan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The persistence of metsulfuron-methyl (methyl 2-[[(4-methoxy-6-methyl- 1,3,5-triazin-2-yl)aminocarbonyl]aminosulfonyl]benzoate) in nonautoclaved and autoclaved Selangor, Lating, and Serdang series soils incubated at different temperatures and with different moisture contents was investigated under laboratory conditions using cucumber (Cucumis sativus L.) as the bioassay species. Significant degradation of metsulfuron-methyl was observed in nonautoclaved soil compared with the autoclaved soil sample, indicating the importance of microorganisms in the breakdown process. At higher temperatures the degradation rate in nonautoclaved soil improved with increasing soil moisture content. In nonautoclaved Selangor, Lating and Serdang series soils, the half-life was reduced from 4.79 to 2.78 days, 4.9 to 3.5, and from 3.3 to 1.9 days, respectively, when the temperature was increased from 20° to 30°C at 80% field capacity. Similarly, in nonautoclaved soil, the half-life decreased with an increasing soil moisture from 20% to 80% at 30°C in the three soils studied. In the autoclaved soil, the half-life values were slightly higher than those obtained in the nonautoclaved soils, perhaps indicating that the compound may be broken down by nonbiological processes. The fresh weight of the bioassay species was reduced significantly in Serdang series soil treated with metsulfuron-methyl at 0.1 ppm. However, the reduction in fresh weight of the seedlings was least in Lating series soil, followed by Selangor series soil.

Original languageEnglish
Pages (from-to)345-353
Number of pages9
JournalJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
Volume37
Issue number4
DOIs
Publication statusPublished - 2002

Fingerprint

metsulfuron
bioactivity
Bioactivity
Soil
persistence
Soils
soil
half life
Bioassay
Half-Life
Soil moisture
Cucumis sativus
metsulfuron methyl
bioassay
bioassays
moisture content
Biological Assay
Moisture
Temperature
soil moisture

Keywords

  • Degradation
  • Half-life
  • Lating series
  • Metsulfuron-methyl
  • Persistence
  • Selangor series
  • Serdang series

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Public Health, Environmental and Occupational Health
  • Waste Management and Disposal

Cite this

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title = "Persistence and bioactivity of metsulfuron-methyl in three soils",
abstract = "The persistence of metsulfuron-methyl (methyl 2-[[(4-methoxy-6-methyl- 1,3,5-triazin-2-yl)aminocarbonyl]aminosulfonyl]benzoate) in nonautoclaved and autoclaved Selangor, Lating, and Serdang series soils incubated at different temperatures and with different moisture contents was investigated under laboratory conditions using cucumber (Cucumis sativus L.) as the bioassay species. Significant degradation of metsulfuron-methyl was observed in nonautoclaved soil compared with the autoclaved soil sample, indicating the importance of microorganisms in the breakdown process. At higher temperatures the degradation rate in nonautoclaved soil improved with increasing soil moisture content. In nonautoclaved Selangor, Lating and Serdang series soils, the half-life was reduced from 4.79 to 2.78 days, 4.9 to 3.5, and from 3.3 to 1.9 days, respectively, when the temperature was increased from 20° to 30°C at 80{\%} field capacity. Similarly, in nonautoclaved soil, the half-life decreased with an increasing soil moisture from 20{\%} to 80{\%} at 30°C in the three soils studied. In the autoclaved soil, the half-life values were slightly higher than those obtained in the nonautoclaved soils, perhaps indicating that the compound may be broken down by nonbiological processes. The fresh weight of the bioassay species was reduced significantly in Serdang series soil treated with metsulfuron-methyl at 0.1 ppm. However, the reduction in fresh weight of the seedlings was least in Lating series soil, followed by Selangor series soil.",
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AU - Azlizan, B. A.

PY - 2002

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SN - 0360-1234

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