Janjo de Haan

Janjo de Haan is a Researcher at Wageningen University & Research specializing in soil quality and sustainable agricultural systems within Wageningen Plant Research. His work addresses critical challenges in soil management, ecosystem services, and long-term soil health monitoring across northwestern Europe, with particular focus on Dutch agricultural landscapes.

De Haan's research centers on Soil Management, Soil Quality, and Soil Health, investigating how cover crops, organic farming systems, and long-term experiments impact soil functionality. His work bridges scientific research with practical farm applications, emphasizing water quality preservation and climate-resilient soil practices through field experiments and policy-relevant studies.

As project leader for initiatives including "Akkerbouw voor Waterkwaliteit 2027" (2023-2026) and "LWV22038 BAAT" (2025-2027), he directs substantial research funding toward sustainable fertilization advice and soil organic carbon enhancement. His 346+ professional activities demonstrate extensive knowledge dissemination through workshops, conferences, and media engagement.

Recent publications analyze regional adaptation of soil management practices, with his 2025 Geoderma Regional article demonstrating how cover crops and organic fertilizers increase soil organic carbon across varying climatic zones in northwestern Europe. This work exemplifies his focus on translating research into actionable solutions for European agricultural sustainability.