Coupling of soil solarization and reduced rate fumigation: Effects on methyl iodide emissions from raised beds under field conditions

Daniel J. Ashworth, Scott R. Yates, Lifang Luo, Sang R. Lee, Richeng Xuan

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Using field plots, we studied the effect on methyl iodide (MeI) emissions of coupling soil solarization (passive and active) and reduced rate fumigation (70% of a standard fumigation) in raised beds under virtually impermeable film (VIF). The results showed that for the standard fumigation and the passive solarization + fumigation treatments, emissions from the nontarped furrow were very high (∼50%). Emissions from the bed top and sidewall of these treatments were relatively low but were increased in the latter due to the longer environmental exposure of the VIF covering with the coupled approach (increased tarp permeability). Overall, this approach offered no advantage over fumigation-only in terms of emission reduction. With active solarization + fumigation, the large application of hot water during solarization apparently led to severely limited diffusion causing very low total emissions (<1%). Although this suggests a benefit in terms of air quality, a lack of diffusion could limit the pesticidal efficacy of the treatment.

Original languageEnglish
Pages (from-to)12510-12515
Number of pages6
JournalJournal of Agricultural and Food Chemistry
Volume61
Issue number51
DOIs
StatePublished - 26 Dec 2013

Keywords

  • active solarization
  • air quality
  • iodomethane
  • passive solarization
  • virtually impermeable film

Fingerprint

Dive into the research topics of 'Coupling of soil solarization and reduced rate fumigation: Effects on methyl iodide emissions from raised beds under field conditions'. Together they form a unique fingerprint.

Cite this