by Kristian Holst Laursen, University of Copenhagen, Department of Plant and Environmental Sciences
In vertical farming, plants are often grown hydroponically or aeroponically under rigidly controlled conditions. This allows for complete control of plant nutrient supply and potentially delivers optimal plant growth, harvest yield and food quality. It is, however, vital that fertilization strategies are carefully designed to match plant demands of all 14 essential plant nutrients throughout the whole growth period. This does represent a major challenge when nutrient solutions are recirculated – not least in systems relying on organic fertilizers.
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