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Hydroculture is a cultivation method that involves growing a plant without using soil. To practice this type of cultivation it is necessary to have a clean and disinfected plastic container, better if of the double bottom type with float, suitable for hydroculture.
As a growing medium, instead of the soil, inert materials are used, such as expanded clay or perlite, or materials that can retain moisture, transporting it by capillarity. Proceed by choosing a plant, which must be extracted from the substratum in which it is grown, with the help of first the hands and then a delicate jet of water to completely free the roots of the plant from any soil residue; this phase is very important because then small residues of soil in hydroculture could lead to the subsequent development of mold or rot. Then the hydroculture vessel is filled with the expanded clay, up to about half; in the material the roots of the plant are arranged, well spread; finally fill the container up to a couple of centimeters from the edge. Now proceed by watering the substrate, filling the container with water for a couple of centimeters; in the following days the water, by capillarity, will reach the roots. Since the substrate is inert, it does not contain the mineral salts necessary for the development of the plant; It is therefore essential to add to each watering of the water fertilizer: specific fertilizer for hydroculture is used, or even a normal universal fertilizer, but in a quantity of about one tenth of that suggested on the package.