frgntgar@ozemail.com.au wrote: > > > > >While I am thinking of it, I feel every gardener should have his/her > >own pH meter > Can you reccomend a good one that is simple to use? > ie stick it in the ground and get a reading? A Hort Science report of some years ago found the cheap pH meters were useless. I do not know anything about the quality available to day. I measure pHs many times perday and would be in big legal troubles unless I calibrated with NBS buffers every day. Those will cost you $20 per year. If the meter does not have a way to adjust the meter reading to agree with the known value of the standard buffer, you know it is just a gadget and not a meter. -- Harold Eddleman Ph.D. Microbiologist. mailto:indbio@disknet.com Location: Palmyra IN USA; 36 kilometers west of Louisville, Kentucky http://www.disknet.com/indiana_biolab = Agriculture, science projects