Demonstrator: Experimental glasshouse of Wonderplant SA – AUA –  Recycling of fertigation effluents in greenhouses using ion selective electrodes

Type and volume of input materials/products

Tomato cultivation (20.1 ha) in a closed soilless system with mineral wool as substrate. Conventional management of nutrition that entails periodic discharge of fertigation effluents. Cultivation of fruit vegetables in a closed-loop soilless system

Type & volume of output materials/products

Use of novel DSS in combination with ion selective electrodes (ISE) to optimise recycling of the fertigation effluents (drainwater), thus eliminating discharge of NO₃^– and P to aquifers, and maximising nutrient use efficiency (application in both demonstration sites).