“…The implications of this are drawn 23 out in the discussion, which suggests (in accordance with Giller) that a multi-level 24 concept of farming systems, and (in accordance with Sumberg et al) a focus on the 25 systematic nature of decision-making, can offer important insights into, and even a 1 means of re-negotiating, pathways of agricultural development. cultural, and economic processes -interact in dynamic ways, and a focus on these 12 multiple system interactions, is at the core of an increasingly diverse field of 13 agronomic research (Byerlee et al, 1982, Collinson, 1987 techniques, began to acknowledge the ways in which context-specific access to 22 agricultural inputs and output markets and the geographic distribution of poor soils 23 acted to constraint the choices of smallholder farmers (Norman, 1995, Norman, 24 1978. 25 …”