Reducing methyl bromide emission with a high barrier plastic film and reduced dosage

Article Abstract:

The combined use of high-barrier plastic films such as the Hytibar with reduced methyl bromide (MeBr) application dosages can substantially reduce MeBr atmospheric emission from soil fumigation. Studies have shown that Hytibar films are more effective in reducing Mer emission than conventional polyethylene (PE) films. A 37.5% reduction in MeBr emission was observed in soil samples covered with the Hytibar tarp for five days while only about 64% reduction was observed in soil samples covered with the PE tarp for the same length of time.

Pesticide and Other Agricultural Chemical Manufacturing, Agricultural chemicals, not elsewhere classified, Unsupported plastics film & sheet, Unsupported Plastics Film and Sheet (except Packaging) Manufacturing, Methyl Bromide, Polyethylene Film, Plastic Film NEC, Research, Plastic films, Polyethylene, Bromides, Bromides (Chemistry)

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Surface amendment of fertilizer ammonium thiosulfate to reduce methyl bromide emission from soil

Article Abstract:

Ammonium thiosulfate (ATS) is found to be a potential surface amendment for the reduction of methyl bromide (CH3BR) emissions after soil fumigation with little effects on weed and nematode control efficiency rates of CH3BR at proper levels. Emissions from untreated soil was 61% while ATS treated soil emitted less than 10% with field studies showing ATS amendment of 660 kg per ha-1 having limited effect on nematode and weed control efficiency.

Research and Development in the Physical, Engineering, and Life Sciences, All Other Basic Inorganic Chemical Manufacturing, Waste Management and Remediation Services, Ecological Sciences, Industrial inorganic chemicals, not elsewhere classified, Misc Gaseous Pollutants, Ammonium Thiosulfate, Usage, Evaluation, Equipment and supplies, Air pollution control, Environmental sciences, Soil amendments, Gaseous pollutants, Air quality management, Ammonium compounds, Ammonium salts

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Design, fabrication, and application of a dynamic chamber for measuring gas emissions from soil

Article Abstract:

A dynamic flux chamber was designed and fabricated to make field measurements of fluxes of volatile organic compounds from soils to the atmosphere. The dynamic flux chamber, which consists of an inlet transition zone, a square body, and an outlet transition zone, was used to measure the emission of methyl bromide. Measurements obtained from the chamber were found to be consistent with measurements obtained from micrometeorological methods.

Research & Development, Scientific Research and Development Services, All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Organic Chemicals NEC, Innovations, Measurement, Research institutes, Measuring instruments, Organic compounds, Volatile organic compounds

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