'Better grasp of outgoing radiation is useful add-on to green fingers' : Outgoing radiation is still a mystery to many growers

Outgoing radiation is a relatively new concept for many growers and suppliers. It is not something that would necessarily occur to growers using the 'green finger' approach. Word has spread with the advent of Next Generation Growing, but course tutor Arlet Dechering notes that there are still a lot of unanswered questions, such as how you can or should take it on board.