Fit roots for plant health Technical bulletin 2020 EN
both the solution and air, to
refresh their composition. For instance, oxygen
(O2) must be able to move in, and carbon dioxide
(CO2) to move out of the soil/air [...] metabolites to be transported to the leaves, flowers and fruits. Roots also excrete carbohydrates
(‘sugars’) and other compounds made in the leaves into the [...] general description, and
there are many ways to create a proper substrate.
That can be soil, rockwool, peat and many others.
But there are significant differences