Soilless media can be tested pre-plant (in bulk) or post-plant (in container).
- Collect a representative sample consisting of 5 to 10 subsamples.
- Thoroughly mix subsamples.
- Submit composite media sample in a clean, well-sealed plastic bag.
- Submit a minimum of one quart of media. Two quarts are preferable.
Tab/Accordion Items
- Collect subsamples of bulk (pre-plant) substrates from the center of individual bags or from random areas in the central part of the stockpile.
- For accurate pH measurement, samples from dry substrates should be moistened before being sent to the lab.
- For Diagnostic samples, submit both a Pre- and Post-plant media sample.
This page was last modified on 01/16/2024