Kinetics of the microbial degradation of 2,4-d and 14C-labeled paraquat in two types of tropical agricultural soil

Ismail Sahid, Mehdi Sameni, M. Halimah

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Degradation of agrochemicals in the soil plays an important role in the fate and transport of the contaminants in the environment. A study on the degradation of 2,4-D (2,4-Dichlorophenoxyacetic acid) and 14C-labeled paraquat (1,1-dimethyl-4,4-bipyridylium) in Malaysian clay and clay loam soils was carried out under laboratory conditions. The individual half4ifes were derived from the slope of the line of best fit, calculated by linear regression analysis of the logarithm of the concentration remaining against the time of incubation. The degradation rate of both herbicides at different temperature levels and moisture content was investigated. The degradation rate of 2,4-D compounds was strongly influenced by temperature and soil moisture content. In contrast, the half life of 14C-paraquat in both types of soils did not change significantly when temperature and soil moisture content increased.

Original languageEnglish
Pages (from-to)324-333
Number of pages10
JournalWorld Applied Sciences Journal
Volume14
Issue number2
Publication statusPublished - 2011

Fingerprint

paraquat
tropical soil
agricultural soil
2,4 dichlorophenoxyacetic acid
kinetics
moisture content
degradation
soil moisture
soil
temperature
clay loam
agrochemical
half life
herbicide
regression analysis
incubation
clay
pollutant
rate

Keywords

  • 2
  • 4-D
  • C-labeled paraquat
  • Microbial degradation
  • Tropical agricultural soil

ASJC Scopus subject areas

  • General

Cite this

Kinetics of the microbial degradation of 2,4-d and 14C-labeled paraquat in two types of tropical agricultural soil. / Sahid, Ismail; Sameni, Mehdi; Halimah, M.

In: World Applied Sciences Journal, Vol. 14, No. 2, 2011, p. 324-333.

Research output: Contribution to journalArticle

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