Question

What is Rockwool hydroponics?

Answer 1

Rockwool is a kind of growing media made from the natural ingredients of Basalt rock and Chalk. Rockwool being a lightweight hydroponic substrate, is made from spinning molten basaltic rock into fine fibers which are then formed into a range of cubes, blocks, growing slabs, and granular products.

Complete answer:
The definition of hydroponics states that it is the cultivation of plants in water without the soil. It is a subcategory of hydroculture and is a useful technique for growing plants without soil.
Using this technique, roots directly absorb the nutrients present in water and fulfill their growth requirement. Furthermore, through this method, one can grow plants in liquid, sand, or gravel by simple addition of some nutrients to it.
In recent years, hydroponics has found its application in the field of commercial production and horticulture. Similarly, residents of cities with limited space are using this method to grow fresh plants in their homes and surroundings.
Rockwool is a horticultural growing media that is made from natural ingredients such as chalk and basalt rock. As Rockwool takes shape in fire, it can provide its produce biologically and chemically inert, creating the ideal growing media for hydroponics.
Rockwool has other names too, one common name is ‘stone wool’. It is man-made and makes use of basalt rock (old volcanic rock)that is melted at higher temperatures along with the limestone. During its manufacturing process, the heating process they undergo indicates there is little chance of fungi or bacteria entering Rockwool.

Note:
Rockwool in hydroponics is used because these are found to retain moisture to nearly the ideal conditions, it will retain oxygen and because of its fine structure, it never impedes the growth of plants' rooting systems. Rockwool can actually promote strong vigorous growth.