In vertical hydroponic systems, plants literally grow upward—without soil, with controlled fertilizer input, and in a water-saving setup. As cities continue to expand, agricultural land becomes scarcer, and climate change progresses, new forms of cultivation are coming into focus. One of these is vertical hydroponic farming: plants are grown on multiple stacked levels, not in soil but in a circulating nutrient solution. This saves space, enables short transport routes, and allows crops to be supplied very precisely. Together with an international consortium, the Fraunhofer Institute for Microengineering and Microsystems IMM developed a multi-ion monitoring system designed to automatically control nutrient input in such closed-loop systems, making the use of water, fertilizer, and other operating resources more efficient.
more info
Fraunhofer Institute for Microengineering and Microsystems IMM