Login
Toggle navigation
Home
ICPA
Conference
Abstract Management
Abstract Topic Groups
Author Instructions
Registration
Registration Information
16th ICPA - Conference Registration
Registrants Map
Hotel and Travel Information
Tour
Workshops
Exhibit Hall Map
Sponsors
Conference Program
General Outline
Oral Program
Poster Program
Student Poster Awards
Keynote
Plenary Session
Awards
Photos
Conference Survey
Proceedings
Leadership
ISPA Leadership
Officers
Past Presidents
Officer Responsibilities
Country Representatives
Communities
Community Guidance
On-Farm Experimentation
Nitrogen
Latin America
Economics
African Association for Precision Agriculture
Membership
ISPA Member Benefits
Membership Form
Events
ISPA Events
ACPA
ACPA Proceedings
AfCPA
AfCPA Proceedings
CLAP
CLAP Proceedings
ECPA
ECPA Proceedings
ICPA
ISPA Webinars
OFE
AAPA
Latin American
Robotics and Automation Symposium
Event Overview
Registration
Program
Venue
Speakers
About ISPA
Newsletters
History
Jobs
Precision Ag Definition
Agriculture Course Database Submission
Publications
ICPA Proceedings
ECPA Proceedings
Contact Us
Members
Suggestion Form
Conference
Abstract Management
Abstract Topic Groups
Author Instructions
Registration
Registration Information
16th ICPA - Conference Registration
Registrants Map
Hotel and Travel Information
Tour
Workshops
Exhibit Hall Map
Sponsors
Conference Program
General Outline
Oral Program
Poster Program
Student Poster Awards
Keynote
Plenary Session
Awards
Photos
Conference Survey
Proceedings
Proceedings
Search
Authors
Topics
Years
Types
Find matching any:
Reset
» Add more years
Add filter to result:
Minimizing On-farm Point Source Contamination Of Pesticides Using The Biobed Method
F. Eivazi
Lincoln University
Microorganisms play a vital role in maintaining the environmental quality through their metabolic activities. The highly versatile metabolic capabilities of fungi and bacteria can be used to reclaim polluted ecosystems. A variety of biological, chemical, and physical methods have been used for degradation and detoxification of pesticides. However, conventional clean- up methods are costly and not always effective. Agrochemical storage and handling practices have been targeted as a potential point source contamination of soil and groundwater. Use of “biobed” to contain and biodegrade pesticides may be a cost-effective alternative. A biobed is an in-ground treatment unit designed to contain spills of pesticides and degrade the chemicals through microbial activity. Microbial activity may be enhanced by altering conditions conducive to degradation. In this study, thetechnical potential of using biobed was evaluated in a series of
ex-situ
experiments using small scale biobeds with mixtures of “top soil, peat, and straw” as substrate. Herbicides used included glyphosate, atrazine, acetochlor, and metolachlor, the most widely used herbicides for agronomic crops. The herbicide-degrading potential of the biobed substrate mixtures was determined by analyzing sub-samples to measure residual herbicide concentrations. The greatest concentration of herbicide residue found when organic matter was included in the biobed media, especially when 50% of the media volume comprised of peat. The results of enzyme activity indicated that addition of straw as carbon source in the biobed media enhanced acid and alkaline phosphatases activities and the activity was correlated with the amount of straw added.
Keyword
: Point-Source Contamination, Pesticides, Biobed
F. Eivazi
Precision Conservation
Poster
2010
Download paper