In this video, Dr. Paul Karlovich of Sun Gro Horticulture discuss the key components of conducting a growing medium trial and how to interpret the results. Experimenting with the material or “media” that your greenhouse uses for commercial growing is an important component of a successful growing operation. The best medium for a plant will not only physically support the plant, but also supply it with nutrients and promote maximum root growth.
Karlovich discusses how to select the right plant for a trial, how large the trial should be, and what data points to collect, such as amount of water given, fertilizer, pH levels, etc. He also provides advice on labeling, how to use photos and how to grade the final results.