Enhanced dissipation of oxyfluorfen, ethalfluralin, trifluralin, propyzamide, and pendimethalin in soil by solarization and biosolarization

J Agric Food Chem. 2010 Feb 24;58(4):2433-8. doi: 10.1021/jf903697u.

Abstract

This study was conducted to assess the effects of solarization and biosolarization on the degradation of oxyfluorfen, ethalfluralin, trifluralin, propyzamide, and pendimethalin. The experimental design consisted of 17 L pots filled with clay-loam soil, which were contaminated with the studied herbicides. Then, soil disinfection treatments were applied during the summer season, including a control without disinfection (C), solarization (S), and biosolarization (BS). Soil from five pots per treatment was sampled periodically up to 90 days. Herbicide dissipation rates were higher in both S and BS treatments with regard to the control. Similar dissipation rates were observed under S and BS for most of the herbicides studied, except oxyfluorfen and pendimethalin, which were degraded to a greater extent in the BS than in the S treatment. The obtained results showed that both solarization and biosolarization can be considered, in addition to soil disinfection techniques, such as bioremediation tools for herbicide-polluted soils.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum Silicates
  • Aniline Compounds / chemistry*
  • Aniline Compounds / radiation effects
  • Benzamides / chemistry*
  • Benzamides / radiation effects
  • Clay
  • Disinfection / methods
  • Halogenated Diphenyl Ethers / chemistry*
  • Halogenated Diphenyl Ethers / radiation effects
  • Herbicides / chemistry*
  • Herbicides / radiation effects
  • Molecular Weight
  • Soil*
  • Solubility
  • Sunlight*
  • Trifluralin / analogs & derivatives*
  • Trifluralin / chemistry*
  • Trifluralin / radiation effects

Substances

  • Aluminum Silicates
  • Aniline Compounds
  • Benzamides
  • Halogenated Diphenyl Ethers
  • Herbicides
  • Soil
  • pronamide
  • oxyfluorofen
  • ethafluralin
  • Trifluralin
  • Clay
  • pendimethalin