Vandinter Semo has a solid reputation as a supplier of distinctive green manure, thanks to a successful cultivation and breeding programme. The high scores on the catalogue of varieties confirm that. The high-scoring Vandinter Semo green manure varieties have the Active quality mark. A guarantee for a healthy soil. Only varieties grown in-house are eligible for the Vandinter Semo Active quality mark. The Active quality mark guarantees a proven active effect against nematodes, a proven active germination capacity and a seed purity of 98.5%.