Charles 'merf' charles 

is an organic / sustainable agricultural scientist and ex organic grower. He is the head of the BHU Future Farming Centre at Lincoln in Canterbury which is dedicated to the science and extension of permanent and whole-system agricultures and horticultures. Merf covers all aspects of sustainable ag and hort, starting with soil - the foundation of agriculture - through all aspects of crop production, non-chemical pest, disease and especially weed management, with thermal weeding a particular speciality. Merf has been using and research thermal weeders for over quarter of a century, including optimising the design of horticultural flame weeders, re-inventing the direct-fired steam boiler and configuring that for use in agriculture and horticulture.