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United States Department of Agriculture

Agricultural Research Service

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Research Project: Advanced Development and Implementation of Anaerobic Soil Disinfestation Technology As An Alternative to Methyl Bromide

Location: Subtropical Plant Pathology Research

Project Number: 6034-22000-041-02
Project Type: Reimbursable

Start Date: Sep 01, 2010
End Date: Aug 31, 2014

Objective:
Expand on-going research to determine the most effective methods of applying anaerobic soil disinfestation (ASD) as an alternative to MeBr for control of key soilborne pathogens, plant pathogenic nematodes, and weeds. Impacts on crop yields, soil chemical and physical properties, and soil microbial communities will also be evaluated in raised bed and flat applications.

Approach:
Multiple greenhouse, growth chamber, and field-scale trials will be conducted to determine if temperature plays a role in establishing the level of anaerobicity required to have an impact on weeds, nematodes, and plant pathogenic fungi; optimize tarp selection for maximum Eh and practicality; and evaluate summer cover crops as carbon sources for initiating treatments of ASD in a bell pepper-eggplant double crop. The ability to do ASD for production of crops that normally utilize flat fumigation, such as in-ground ornamentals, will also be determined in field trials. All trials will be replicated randomized complete block design in order to assess the impacts of all treatment combinations on multiple pests. The optimized system for ASD for flat and raised beds will be transferred to growers through field days and on-farm grower cooperator demonstration trials.

Last Modified: 11/22/2014
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