North American Fruit Explorers mailing list at ibiblio

["Donna &/or Kieran" <holycow@cookeville.com>]

Mark,  Your CEC tells how much "stuff" your soil can hold.  Yours is kind of 
medium light, so you'll have to add more than someone with a real sandy 
soil, but your soil will do a pretty good job of holding whatever you give 
it.  If you had a really high CEC and low pH, you'd be adding lime for years 
to bring up the pH.  Ditto for many nutrients.  Donna