Welcome to the J.R. Peters
Laboratory™ Technical Library. Below is a listing of forms that
are available for download. All documents are in PDF format
and may be printed.
• Finding Your Perfect Match211kb
Utilizing
your J.R. Peters Laboratory™ results to select the proper Jack's
Professional® fertilizer.
• Plants
by pH67kb
Group
your plants by growing
media pH preference.
• Water Quality and Alkalinity Guidelines53kb
Outlines the parameters and guidelines
established by the J.R. Peters Laboratory™
for water quality suitable for greenhouse grown crops.
• Sample To Diagnose Nutrient Disorders512kb
By Dr. Karen Kackley, Shannen Ferry and Dr. Cari Peters
Originally published in the August 2006 issue of GMPro
• Test For Success3.03MB
By Dr. Karen Kackley, Dr. Cari Peters and Shannen Ferry
Originally published in the July 2006 issue of GMPro