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From PDHengineer. com-Decatur Professional Development, LLC
Backflow Prevention in Chemigation of Pesticides
...Chemigation, or the addition of chemicals to irrigation water, has probably been around for as long as both irrigation and chemicals have been used in agriculture. Chemigation became more widely used in the 1970's with the adoption of center pivot irrigation systems in the Midwest. Backflow prevention is necessary to prevent pesticide contamination of surface water supplies as well as
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...Chemigation, or the addition of chemicals to irrigation water, has probably been around for as long as both irrigation and chemicals have been used in agriculture. Chemigation became more widely used in the 1970's with the adoption of center pivot irrigation systems in the Midwest. Backflow prevention is necessary to prevent pesticide contamination of surface water supplies as well as
more...
