Persistence of metsulfuron-methyl in two soils

Ismail Sahid, H. J. Lee

Research output: Contribution to journalArticle

Abstract

The persistence of metsulfuron-methyl in sandy loam and clay soil incubated at different temperatures and moistures contents was investigated under laboratory conditions using longbean (Vigna sesquipedalis L.) as bioassay species. A significant degradation of metsulfuron-methyl was observed in non-autoclaved soil rather than the autoclaved soil sample. At higher temperature, the degradation rate in non-autoclaved soil improved with increasing soil moisture content. In non-autoclaved sandy loam and clay soil, the half-life was reduced from 9.0 to 5.7 and from 11.2 to 4.6 days, respectively when moisture level of sandy loam increased from 20 to 80% field capacity at 35°C. In the autoclaved soil, herbicide residue seems to have been broken down by non-biological process. The rate of dissipation was slightly increased after the second application of the herbicicle to non- autoclaved soils but not in autoclaved soil, indicating the importance of microorganisms in the breakdown process.

Original languageEnglish
Pages (from-to)485-497
Number of pages13
JournalJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes
Volume30
Issue number4
Publication statusPublished - 1995

Fingerprint

metsulfuron
Soil
persistence
Soils
sandy clay soils
sandy loam
soil
sandy clay
sandy loam soils
clay soil
herbicide residues
Vigna
degradation
field capacity
Clay
Moisture
half life
soil water content
temperature
Degradation

Keywords

  • Bioassay
  • herbicide
  • metsulfuron-methyl
  • persistence
  • soil

ASJC Scopus subject areas

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

Cite this

Persistence of metsulfuron-methyl in two soils. / Sahid, Ismail; Lee, H. J.

In: Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, Vol. 30, No. 4, 1995, p. 485-497.

Research output: Contribution to journalArticle

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