Feeding a rapidly increasing global population means that food production must be achieved in a more efficient and sustainable manner. It is therefore essential to use fewer inputs to achieve greater yields. The real challenge not only lies in increased production, but also in reaching this aim against a backdrop of climate change and degradation of natural resources such as fertile land, freshwater and biodiversity. In Burundi - where an expanding population is living-off limited land, often divided into small parcels - increasing food production will mean focusing on integration and efficiency in farming systems rather than simply bringing more land under cultivation.