24 Oct 2017
2017 California Nursery Conference: Conclusion
Brett Cregg (Michigan State University), Paul Fisher (University of Florida), Sarah White (Clemson University), Charlie Hall (Texas A&M), and Bruno Pitton, Darren Haver, Grant Johnson, Loren Oki (University of California)
This conference, held on July 27, 2017 in Irvine, CA, focused on Water Management in Nursery and Greenhouse Production. The Clean WateR3 team presented their research studies. The conclusion of the conference dealt with recycling water: economics, monitoring quality, managemet of nutrients and agrichemicals, and pathogens and biofilm. The topics covered are:
3-1ImpactsRecycledWateronPlantPhysiologyandgrowth (1175 KB)
3-2BiofilmManagement (3947 KB)
3-3BiologicalTreatmentofRunoff (4394 KB)
3-4SlowSandFilters (2204 KB)
3-5WaterRecyclingEconomics (1245 KB)
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 below.
6 Feb 2017
Elimination of Tobacco Mosaic Virus From Irrigation Runoff Using Slow Sand Filtration
Oki, L.R., Lee, E., Pitton, B., Nackley, L.,(University of California (UC) Davis), Bodaghi, S., Mathews, D.M. (UC Riverside), Haver, D. (UC South Coast Research and Extension Center)
Slow sand filters have been shown to remove pythiacious organisms from captured runoff water. In this study, Tobacco Mosaic Virus (TMV) was regularly added to irrigation runoff water. The virus passed through the sand filters for approximately 5 weeks, but gradually reduced to undetectable virus titer using ELISA during week 6 to 9. This is the first report that showed slow sand filters removed TMV from runoff water.
1 Jul 2016
Select The Right Filter For Ebb-And-Flood Irrigation
Fisher, P. (University of Florida), Raudales, R. (University of Connecticut), Huang, J. (University of Florida)
Recirculated water from flood floors can contain plant debris, growing media, labels and microorganisms. This article evaluates the use of vibrating screen and paper/fabric filters for particle removal. Total suspended solids (TSS) were measured before and after filtration. Regardless of filter type, approximately 50% TSS was removed. Two-stage filtration can increase efficacy of particle removal from recirculated water.
Greenhouse Grower July 2016 (1479 KB)