putzolana

Volcanic rock is subjected to a process of heating and subsequent cooling abruptly, and crushed to obtain gravel. It has a vitrified appearance, it is a solid and insoluble material. The name comes from the population of “Puzzuoli”, at the foot of Vesuvius, Italy. Putzolana is the name given to the ashes and volcanic stones […]

PRODEASA substrates are made from high quality raw materials which, when mixed together, ensure substrate efficiency and proper drainage and ventilation for each crop. Each substrate has a different composition and a tailor-made fertilizer. All substrates are commercialized with a corrected pH (5.5-6.5) and a base fertilizer (NPK) for the start of cultivation. Between the […]