26 Mar 2013
Porosity Testing for Stabilized Substrates in Trays
Paul Fisher et al. UF
To measure bulk density, water holding and porosity for a consistent stabilized foam, paper-wrapped, or peat-polymer growing substrate.
S03 Porosity Testing for Stabilized Substrates (325 KB)
4 Mar 2013
Particle size testing for propagation substrates
Jinsheng Huang and Paul Fisher (University of Florida)
Test the distribution of particle sizes of a growing substrate for a consistent, uniform growing mix with air and water holding characteristics that are desirable for seedling plugs or vegetative cutting liners.
S01 Particle Size Testing for Propagation Substrates (400 KB)
3 Mar 2013
The 1 to 5 Plug Tray Moisture Scale
Jinsheng Huang and Paul Fisher (University of Florida)
The Moisture Scale is used by many plug and liner growers as a key part of their irrigation management.
S10 The 1 to 5 Plug Tray Moisture Scale (434 KB)