Agroecological approaches to the use of nutrients and the maintenance of soil health: Fergus Sinclair at Agroecology Europe Forum 2023 In this video made for Agroecology Europe Forum 2023, which is taking place on 16-18 November 2023 in Hungary, Fergus Sinclair (Chief Scientist, CIFOR-ICRAF and Co-convenor, Agroecology TPP), lays out a pathway for providing nitrogen to crops in the coming century.