Stone wool (rockwool) is the most widely used inert substrate in professional greenhouse hydroponics, primarily for tomato, cucumber, pepper and roses. Yet many growers choose their slab based only on dimensions and price, overlooking a feature that largely determines water behaviour and how well the crop can be controlled: the fiber structure, i.e. the orientation of the fibers within the slab. This article explains what "fiber structure" means in stone wool, the main types

For many years, the success of a greenhouse operation depended primarily on the grower’s experience, fertile soil, and favorable climatic conditions. Today, however, the rules of the game have changed. Agriculture is no longer just about production; it is about entrepreneurship, risk management, and continuous investment in efficiency. Greek growers are facing a new reality: rising production costs, labor shortages, limited water resources, and increasingly intense internatio

Opinion Article Hydroponics is much more than an alternative cultivation method. It is a complete production technology that enables growers to control nearly every factor influencing plant development. At a time when production costs are increasing, natural resources are becoming more limited, and market demands continue to grow, hydroponics has emerged as one of the most significant advances in modern agriculture. Although many consider it a relatively new technology, hydro

In modern hydroponic cultivation, the growing substrate is much more than a medium that supports the plant. It is one of the most important management tools available to growers, directly influencing root development, water and oxygen availability, nutrient uptake, and ultimately crop yield and quality. Selecting the right substrate can significantly improve crop stability, reduce production risks, and help growers achieve more consistent results throughout the season. The Im