economic cost (7)

21 Mar 2017

The Cost of Filtration

Raudales, R. (University of Connecticut), Fisher, P. (University of Florida), Hall, C.(Texas A&M University)

Filtration is an important step in capture and re-use of irrigation water.  This article presents filtration systems, the initial cost, and the cost to treat 1,000 gallons of water.  Filtration is the first article in the three-part series of water management in GPN magazine. 

The Cost of Filtration (1) can be found in the link bellow.

1 Sep 2016

Carbon Footprint and Variable Costs of Production Components for a Container-grown Evergreen Shrub Using Life Cycle Assessment: An East Coast U.S. Model

Ingram, D.L. (University of Kentucky), Hall, C.R. (Texas A&M University), Knight, J. (University of Kentucky)

Production components of an evergreen shrub (Ilex crenata) grown in a #3 container in an east coast U.S. nursery are analyzed for their costs and contributions to carbon footprint (CF), including product impact in the landscape throughout its life. The propagation-to-landscape CF for an individual plant was 2.337 kg CO2e with variable costs from cutting-to-gate of $3.224. After accounting for carbon sequestered in the landscape by the plant, the plant’s CF drops to -1.445 kg CO2e. Major contributors to CF and costs are discussed. This information can communicate economic and environmental value of green industry products to the consuming public.

HortScience 51 2016 (487 KB)

1 Aug 2016

The Cost of Irrigation Sources and Water Treatment in Greenhouse Production

Raudales, R.E. (University of Connecticut), Fisher, P.R. (University of Florida), Hall, C.R. (Texas A&M University)

In this article, 11 greenhouse operations were surveyed to provide cost analysis of screen filters, synthetic fiber filters, control of pathogens, and water sources.  The cost analysis may aid in informed descisions when considering recirculation or recycling of irrigation water.

Irrigation Science 2016

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Description of research activities

A national team of scientists is working to encourage use of alternative water resources by the nation’s billion-dollar nursery and floriculture industry has been awarded funds for the first year of an $8.7 million, five year US Department of Agriculture – National Institute of Food and Agriculture –Specialty Crop Research Initiative competitive grant.

The team will develop and apply systems-based solutions to assist grower decision making by providing science-based information to increase use of recycled water.  This award from the NIFA’s Specialty Crop Research Initiative is managed by Project Director Sarah White of Clemson University.  She leads a group of 21 scientists from nine U.S. institutions.

Entitled “Clean WateR3 - Reduce, Remediate, Recycle – Enhancing Alternative Water Resources Availability and Use to Increase Profitability in Specialty Crops”, the Clean WateR3 team will assist the grower decision-making process by providing science-based information on nutrient, pathogen, and pesticide fate in recycled water both before and after treatment, average cost and return-on investment of technologies examined, and model-derived, site specific recommendations for water management.  The trans-disciplinary Clean WateR3 team will develop these systems-based solutions by integrating sociological, economic, modeling, and biological data into a user-friendly decision-support system intended to inform and direct our stakeholders’ water management decision-making process.

The Clean WateR3 grant team is working with a stakeholder group of greenhouse and nursery growers throughout the United States.

For example, at the University of Florida graduate student George Grant is collecting data on removal of paclobutrazol, a highly persistent plant growth regulator chemical, from recirculated water using granular activated carbon (GAC) filters. This is being done in both research greenhouses and in a commercial site. The GAC filters can remove more than 90% of chemical residues, and are proving to be a cost-effective treatment method.