New high-yielding canna and cassava varieties were adapted to growing conditions at research site (Bac Kan province, Vietnam) and made site-specific recommendations for management practices (i.e., fertilizer and planting densities) to maximize yields of such new varieties, which were grown by farmers and supplied as raw materials to a local processor in the commune. Localized processing provides secure markets, adds value for cassava and canna growers, and can improve sustainability of production systems if by-products are used to feed livestock. Farmers were trained in livestock feeding practices using low-cost feeds based on cassava and canna processing residues and locally available feeds to improve profitability of household-scale livestock production. Eco-efficiencies gained from improved two-way producer/processor linkages and better crop/livestock integration made production systems more competitive, as households increased income with less cash outlay for fertilizers and livestock feed.