Search for alternatives for peat is about stability and hygienisation

Search for alternatives for peat is about stability and hygienisation
Photo: WUR

In the coming decades, peat will be gradually replaced by circular growing media as a basis for potting soil and substrate. There are some promising alternatives. The Greenhouse Horticulture and Flower Bulbs Business Unit of Wageningen University & Research is investigating the advantages and disadvantages of these alternatives. Researcher Van Nguyen: “That search is mainly about balance between plant growth and microbial activities in the root zone.”

The use of peat in potting soil and substrate is under pressure. Fourteen organisations, including the Ministry of Agriculture, Nature and Food Quality, the TurfVrij Action Group and the Association of Potting Soil and Substrate Manufacturers in the Netherlands (VPN), therefore signed the Environmental Impact of Potting Soil and Substrates Agreement in 2023. 

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