If you are looking for a commercial soil testing lab to assist you in analyzing the properties of your growing media, here are some options that are out there. (Listing doesn’t imply endorsement by GMPRO.)
* www.kaglab.com/Services/greenhouse/greenhome.htm
K Laboratories,
* www.jrpeterslab.com
J.R. Peters Laboratory,
* www.soilandplantlaboratory.com
Soil and Plant Laboratory Inc.,
* www.scottstestlab.com
Scotts Testing Lab,
* www.al-labs-west.com
A&L Western Laboratories,
* www.agrianalysis.com
Agri Analysis,
* www.blinc.com/lab-tour.htm
Brookside Laboratories, New
{sidebar id=1}
* www.bettersoils.com
Wallace Laboratories,
August 2008