E-GRO Alert: Is irrigation water alkalinity ailing your crop?

May 08, 2015
Written by Dr. Kristin L. Getter, Michigan State University
E-GRO Alert: Is irrigation water alkalinity ailing your crop?
Greenhouse Canada file photo
May 8, 2015 – If the pH of your media is out-of-whack, consider checking your irrigation water alkalinity.

Many growers monitor their crop’s substrate pH and electrical conductivity (EC) periodically in order to avoid nutritional and crop quality issues.

For more information on how and why to monitor pH and EC, see the Michigan State University Extension article titled "pH and EC issues still a problem in some greenhouses."

If substrate pH is routinely a problem, it is possible that the irrigation water alkalinity may be the cause. In this article, we review why it is important to monitor your greenhouse irrigation water alkalinity.

For this e-Gro Alert, go to http://www.e-gro.org/pdf/2015_433.pdf.

For the e-Gro Alert website and its archived features, go to www.e-gro.org.

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