Alternative fertilizer requires new ecosystem

Artificial fertilizer consists largely of mineral phosphates. The use of this raw material is under discussion. But what alternatives are there? Research by Wageningen University & Research BU Greenhouse Horticulture has shown that sewage sludge ash has potential as an input for circular fertilizer. But for a breakthrough, it is important that different stakeholders in this potential chain get to know each other better. Researcher Alexander van Tuyll: “That is why we have brought together producers, suppliers and growers in a Living Lab.”