Understanding pH and EC: These meters are essential tools, helping growers get the most out of their crops in terms of yield and quality

摘要

The subject of pH and EC has been discussed frequently. I would like you to check the March 2012 issue of Greenhouse Canada for some details on this subject. Every year I see problems in spring with greenhouse crops, both ornamental and vegetable. Understanding pH sometimes becomes an issue itself because it is what I call 'logarithmic'' in nature. Growers who are busy growing plants have no time to regularly monitor the pH of the crops by leaching or draining water through a pot and taking measurements, and then following the trend by making a graph. It also involves regularly calibrating the pH and EC meter and reading the warning signs of upcoming pH and EC issues.