Millions of people rely on nature-rich farming systems for their subsistence and income. The contributions of nature to these systems are varied and key to their sustainability in the long term. Yet, agricultural stakeholders are often unaware or undervalue the relevance of those contributions, which can affect decisions concerning land management. There is limited knowledge on how farming practices and especially those that build more strongly on nature, including agroecological practices, may shape farmers’ livelihoods and well-being. We aim to determine the effect that farmer perception of contributions from nature, socioeconomic conditions, and farming practices, have on outcomes related to food security and human well-being. We conducted 467 household surveys in an agricultural growth corridor in rural Tanzania, which is also essential for nature conservation due to its high biodiversity and its strategic location between several protected areas encompassing wetland, forest, and grassland habitats. Results show that implementing more agroecological practices at farm scale has a positive effect on farmer well-being in the study landscape. Results also indicate that higher awareness of benefits from nature, as well as engagement with agricultural extension services, are associated with higher number of agroecological practices applied in the farm. This research confirms the relevance of capacity-building initiatives to scale up the uptake of agroecological practices in the tropics. It also shows, using empirical evidence, that farming practices taking advantage of nature’s contributions to people can positively affect food security and human well-being, even when those practices complement conventional ones, such as the use of synthetic inputs. Understanding the impact of agroecological farming on the well-being of smallholder farmers in the tropics paves the way for policy and program development that ensures global food demands are met in a sustainable way without compromising the well-being of some of the world’s most vulnerable people.

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The discourse of transformation, as currently adopted in policy arenas, has given scarce attention to diverse knowledges, plural pathways, and politics. Narratives about change and agricultural transformation in African landscapes are diverse. However, failure to recognise diversity among narratives of the predominant food producers—smallholder farmers—in planning and policy processes limits potential to achieve just agricultural transformation. To progress understanding on diverse knowledges, plural pathways, and politics of agricultural transformation in this paper we present smallholder visions of future farms and their narratives of agricultural transformation in an African landscape subject to rapid ecological and livelihood change. We present smallholder narratives of transformation alongside those promoted by national and private-sector blueprints, and critically reflect on the social justice of transformation. From nine participatory workshops conducted with smallholder farmers in the northern Kilombero Valley of the Southern Agricultural Growth Corridor of Tanzania (SAGCOT), four main narratives of transformation were identified: (1) land ownership, (2) expansion of agricultural activities, (3) diversification, and (4) access to water for irrigation. The view of transformation presented by smallholders appears incompatible with national blueprint policies and plans. Despite “win-win” narratives of transformation and the outgrower scheme approach to expansion of sugarcane cultivation promoted by SAGCOT, the national government and the Kilombero Sugar Company, we found that land ownership and expansion remains challenging for smallholders in the present and represents a key aspiration for the future, along with diversification and access to adequate amounts of water for irrigation. These visions of bigger, more diverse farms with access to water, are not necessarily compatible with the expansion of sugarcane cultivation in the area and does not appear, as yet, to be sufficiently recognised in sugarcane expansion plans, creating potential to exacerbate injustice. Given this lack of recognition, smallholders advocate for a stronger role in protecting their interests as citizens in relation to the SAGCOT private-public partners. We demonstrate the need for greater effort among actors in rural African landscapes to realise and recognise the diversity and contextuality of envisaged desirable futures in plans and polices, and the importance of progressing understanding on inclusive planning and policy-making processes to achieve inclusive negotiation leading to more just transformation pathways.