Water uptake ≠ water holding capacity

Deze twee worden vaak door elkaar verwijderd. Een grondstof kan een laag waterbindend vermogen hebben, maar toch die kleine hoeveelheid...

Volume and substrate: a real challenge!

Sommige producten worden per gewicht verkocht, andere per volume.   volgens een Nederlandse substraatproducent vervoerd. Daar worden de balen geopend...

What is a good structure for a substrate ?

I was asked: “How can I improve the structure of my potting soil?”. Before giving a somewhat sensible answer I...

Volume reduction during the potting process

Measuring volume is a point of discussion as long as I work with substrates. The producer is convinced that he...

pH stability in mixtures with less peat

More and more I am being asked how it is possible that the pH fluctuates so much more during the...

Testimonial

Wetting Agent

A plant needs water, air and nutrients. To get this optimally at the root, we use a growing medium: a...