Most recent

25 Apr 2017

A New Way to Measure Electrical Conductivity

John Lea-Cox (University of Maryland)

Electrical conductivity is vital to maintain adequate plant nutrition.  Learn how to measure EC in subtrates with real-time output.  Some imporant considerations are the sensor placement, and understanding the difference between bulk EC vs. pore water EC.  See the article in the link bellow for an easy and cost-effective method for measuring EC.

http://www.gpnmag.com/article/a-new-way-to-measure-electrical-conductivity/

22 Mar 2017

Water Use and Treatment in Container-Grown Specialty Crop Production: A Review

Majsztrik, J.C., White, S.A., Hitchcock, D.R., (Clemson University), Fernandez, T.R. (Michigan State University, Fisher P.R. (University of Florida), Lea-Cox, J. (University of Maryland), Owen, J.S.Jr. (Virginia Polytechnic Institute and State University) , Oki, L.R. (University of California Davis)

Water quality and water quantity are major concerns for growers around the world.  There are number of factors that can impact irrigation water for plant production including policy, changing weather patterns, aquifer depletion, and saltwater intrusion.  This article discusses a number of aspects of water use, capture, remediation, and reuse for specialty crop production.  Various techniques and equipment for the removal of sediment, pathogens, agrichemicals and other contaminants are discussed.  Remediation technologies reviewed include filtration (for example: rapid sand, slow sand, membranes, and filter socks), activated carbon, disinfection (chlorine, ozonation, UV), and biological control (constructed wetlands, vegetated buffers, bioreactors).

See the article in the link bellow.

http://link.springer.com/article/10.1007%2Fs11270-017-3272-1

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.

http://www.gpnmag.com/article/the-cost-of-filtration/

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