In this podcast, the first of four from our North East Organic Discussion Group, Malcolm MacDonald chats to Murray Cooper who farms at Mains of Thornton, and SRUC Research Agronomist Dr Robin Walker. Robin discusses some of the research he has done on intercropping and crop mixtures and how they can be used in organic systems. Murray outlines his farming system and also discusses the practicalities and challenges of using inter-cropping and crop mixtures on a commercial scale.