Its properties are: total pore space, readily available water, reserve water, storage capacity, aeration, particle size distribution, cation exchange capacity and nutrient availability.
ROCK WOOL TRAY.
It is a plastic tray that contains cells in which the rock wool plugs are fitted.
The dimensions of the studs are 3.5 x 3.5 x 4 cm.
This small plug is used primarily for making cuttings. although it can also be used for sowing.
They are served by units