The Kratky method is a passive hydroponic technique developed by Dr. Bernard Kratky at the University of Hawaii. It involves growing plants in a stationary, non-circulating nutrient solution, with the roots submerged in the solution. The method relies on the principle of providing the plant with a reservoir of water and nutrients that decreases over time as the plant consumes them, allowing the roots to grow into the solution.
The Kratky method typically utilizes a container with a lid or cover, such as a bucket or tub, filled with a nutrient solution. Plants are placed in net pots or other suitable containers with growing media, allowing the roots to reach the nutrient solution below. As the plant grows and consumes water and nutrients, the solution level decreases, exposing more of the roots to oxygen in the air.
This method is popular for its simplicity and low maintenance requirements, as it does not require electricity or pumps for nutrient circulation. However, it is best suited for certain types of plants and may not be suitable for all crops or growing conditions.
