John Williams

Principal Soil Scientist, Soils and Nutrients Team, ADAS Boxworth

John is a Chartered Scientist and Head of the ADAS Soils and Nutrients Group  His research focuses on improving the utilisation of organic materials and minimising diffuse air and water pollution from agricultural systems. He is a co-author of the MANNER-NPK manure management software tool, led the revision of the organic manures chapter in AHDB’s Fertiliser Manual (RB209) and was a work package leader for the WRAP/Defra funded digestate and compost use in agriculture (DC-Agri) project. John is FACTS qualified, a welsh speaker and is experienced at delivering nutrient management workshops for farmers and advisers.