10 Aug 2020
Nutrient and pesticide remediation using a two-stage bioreactor-adsorptive system under two hydraulic retention times
Damon E. Abdi, James S. Owen Jr, Julie C. Brindley, Anna C. Birnbaum, P. Chris Wilson, Francisca O. Hinza, Gemma Reguera, Joo-Young Lee, Bert M. Cregg, Daniel R. Kort, R. Thomas Fernandez
Nutrients and pesticides in irrigation return flow from agricultural operations pose an environmental risk. Water treatment systems, such as woodchip bioreactors and expanded aggregate filters, can be used to remediate these contaminants. Our objectives were to investigate agrochemical removal with these systems when operated under an extended hydraulic retention time (HRT) of 3 days and a rapid HRT of 21 minutes. A 3 day HRT effectively reduced nitrate and phosphate below 0.2 ppm in woodchip bioreactors and expanded shale filters, respectively; while a 21 minute HRT was sufficient for removing 50-75% of influent pesticide content but not for nutrient removal.
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13 Jul 2020
Exploring Nursery Growers’ Perceptions, Attitudes and Opinions about Water Usage to Inform Water Conservation Education
Pei-wen Huang (University of Florida), Alexa J. Lamm (University of Georgia), Laura A. Warner, Paul Fisher (University of Florida), and Sarah A. White (Clemson University)
Research has shown the nursery industry needs to seek alternative water sources and adopt water conservation strategies to reduce water use in order to stay viable. This study used a qualitative approach to explore nursery growers’ perceptions, attitudes, and opinions about water usage to inform the development of Extension programs that encourage adoption of water conservation strategies.
Exploring Nursery Growers Perceptions Attitudes and Opinions (348 KB)
13 Jul 2020
A New Perspective on Adoption: Delivering Water Conservation Extension Programming to Nursery and Greenhouse Growers
Laura A. Warner (University of Florida), Alexa J. Lamm (University of Georgia), Sarah A. White (Clemson University), Paul R. Fisher and Peyton N. Beattie (University of Florida)
Extension professionals help important agricultural sectors across the country resolve challenges using science-based practices that enhance environmental and social wellbeing while supporting businesses. Nursery and greenhouse growers comprise one of the largest sectors of U.S. agriculture, and this group is challenged to conserve water without compromising their economic viability. While Extension professionals educate and support nursery and greenhouse growers, there is a deficiency of research on adoption processes within this sector. To better understand this important Extension audience, this research examined the influence of critical thinking and problem-solving style on perceived characteristics of water conservation technologies and in turn the perceived characteristics relationship with their implementation.
A New Perspective on Adoption (962 KB)