measure salt in soil

[#gondwana]

Emily, there is a good book you may want to try reading, if you can find
it. It's abit idiosyncratic and has annoying gaps (IMHO), but it goes
very far indeed in giving you explanations in plain English for a lot of
greenhouse and water quality/nutrient considerations. It's called

Orchid Seedling Care

by Bob Gordon, 1991, Laid-Back Publications, 276 East Shamrock; Rialto,
CA 92376.


Dave D.