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.
1 May 2016
Pinpoint Toxicity in Your Pond Water
Fisher, P.R. (University of Florida)
A case study for a coastal Florida producer using pond water for irrigation. The pond water passed through a sand filter and chlorination treatment. The plants showed pitting and bronzing on the foliage and stunted growth. This article provides trouble shooting tips and tools used to calculate chlorination dosage.
Greenhouse Grower May 2016 (3754 KB)
1 Apr 2016
Using a Dehydrated Agar to Estimate Microbial Water Quality for Horticulture Irrigation
Meador, D.P. (Center for Applied Horticulture Research), Fisher, P.R., Guy, C.L., Harmon, P.F., Peres, N.A., and Teplitski, M. (University of Florida)
Petrifilms can be used as an onsite water quality tool to quantify bacteria density in irrigation water. High bacteria density can clog drip and mist emitters.
Journal of Environmental Quality 45(4) 2016