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Hydroponic Systems

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In hydroponics, the plants are not kept in a traditional medium but on substrates such as rock wool or expanded clay. The nutrients are therefore not drawn from the soil, but from a specially mixed nutrient solution, which supplies the neutral substrates in which the plants are rooted with nutrients and water.

If the aim is to maximise the harvest from the available space and lighting, then hydroponics is the obvious choice - the plants will grow larger in less time than with other comparable cultivation methods. You don't even need a complete hydroponic system for this, because even on a small budget you can carry out a hand-watered grow with perlite or coco. On a larger scale, hydroponics is mainly used in professional horticulture and in greenhouses.

Hydroponic systems - permanent irrigation

A modern type of plant cultivation is carried out using so-called hydroponic Irrigation. Essentially, this describes a form of cultivation without a substrate (soil, coconut, etc.), but through the direct supply of a nutrient solution through the root system - i.e. quasi-constant irrigation. In practice, two principles have become established in the field of hydroponic plant cultivation: the so-called 'drain to waste' solution, in which the nutrient solution is constantly renewed, and circulating systems in which the irrigation is constantly replenished.

Advantages of hydroponic plant cultivation

  • A well-functioning hydroponic plant cultivation system actually saves large amounts of water and fertiliser, as it is a closed system in which the substances mentioned can be dosed very precisely. This aspect is certainly one of the greatest advantages of hydroponics at a time when there is talk of impending water shortages worldwide.
  • Hydroponic plant cultivation can be carried out anywhere, as it functions independently of the quality of the soil available. This makes it possible to supply difficult regions such as deserts or similar with vegetables and other crops.
  • In comparative test plantings in water and soil with a plant species of the same origin, significantly better and higher yields were measured. One of the reasons for this is that the nutrients can be applied in a more targeted and better dosed manner. In addition, some plant species developed significantly faster in water than in soil, which means a more frequent harvest.
  • Hydroponics naturally does not require herbicides.

Disadvantages of hydroponic plant cultivation

  • If you want to start hydroponic plant cultivation, you first need to purchase a system that can be used to realise this. This requires money, time and sufficient space.
  • The production of healthy plants and aromatic, flavoursome vegetables requires extensive, specialist knowledge of the needs of the specific plant. It will not be enough to place a cutting in water; you must provide it with nutrients, humidity, oxygen and light in the right doses.
  • A bit of basic technical knowledge is beneficial for the construction, care and maintenance of a hydroponic system.
  • Hydroponics does not mean saving time by reducing the amount of care required. Hydroponically grown plants have an accelerated metabolism and therefore need special attention.
  • Plants grown hydroponically form so-called water roots, which can only adapt to a different habitat, such as soil, with great difficulty or not at all. Once grown in water, the plant should therefore remain in water.