Springer Science and Business Media LLC

Food systems that deliver healthy diets without exceeding the planet’s resources are essential to achieve the worlds’ ambitious development goals. Healthy diets need to be safe, accessible, and affordable for all, including for disadvantaged and nutritionally vulnerable groups such as of smallholder producers, traders, and consumers in low- and middle-income countries. Globally, food systems are experiencing rapid and drastic changes and are failing to fulfil these multiple duties simultaneously. The international community therefore calls for rigorous food systems transformations and policy solutions to support the achievement of healthy diets for all. Most strategies, however, are essentially supply- and market-oriented. Incorporation of a healthy diet perspective in food system transformation is essential to enable food systems to deliver not only on supplying nutritious foods but also on ensuring that consumers have access can afford and desire healthy, sustainable, and culturally acceptable diets. This paper argues that this should be guided by information on diets, dietary trends, consumer motives, and food environment characteristics. Transformational approaches and policies should also take into account the stage of food system development requiring different strategies to ensure healthier diets for consumers. We review current knowledge on drivers of consumer choices at the individual and food environment level with special emphasis on low- and middle income countries, discuss the converging and conflicting objectives that exist among multiple food-system actors, and argue that failure to strengthen synergies and resolve trade-offs may lead to missed opportunities and benefits, or negative unintended consequences in food system outcomes. The paper proposes a menu of promising consumer- and food-environment- oriented policy options to include in the food systems transformation agenda in order to shift LMIC consumer demand towards healthier diets in low- and middle income countries.

The present work, focusing on the theme of food production and consumption in urban areas, analyses the relationships among three factors: city, human well-being and ecosystems. A case study was carried out addressing the quantification of the potential of rooftop vegetable production in the city of Bologna (Italy) as related to its citizens’ needs. Besides the contribution to food security of the city, the potential benefits to urban biodiversity and ecosystem service provision were estimated. The methodology consisted of: 1) experimental trials of potential productivity of simplified soilless systems in rooftop gardens (RTGs); 2) detection of all flat roofs and roof-terraces and quantification of the potential surfaces that could be converted into RTGs; 3) identification of the city’s vegetable requirements, based on population and diet data; 4) calculation of the proportion of vegetable requirement that could be satisfied by local RTG production; 5) identification of other benefits (improvement of urban biodiversity through the creation of green corridors and estimation of carbon sequestration) associated with the increased area of urban green infrastructure (GI). According to the present study, RTGs could provide more than 12,000 t year−1 vegetables to Bologna, satisfying 77 % of the inhabitants’ requirements. The study also advances hypotheses for the implementation of biodiversity roofs enabling the connection of biodiversity rich areas across and close to the city: these would form a network of green corridors of over 94 km length with a density of about 0.67 km km−2.

Despite gains in agricultural yields, access to food remains a serious challenge in many parts of the world. It is now recognized that improving food security requires a more integrated understanding of food systems and that key under-explored areas of these systems are likely to be crucial in developing effective policy change. In Kenya, institutional changes have occurred to facilitate knowledge integration within the agricultural sector. Drawing on the experiences and understandings of key stakeholders in Kenya, this paper aims to identify and better understand the barriers to knowledge integration for improved agricultural technologies and their adoption. A number of barriers to the flow of knowledge to and from those working to develop new agricultural technologies and farmers are identified. The results of this study suggest a potential link between farmers’ levels of community organization and levels of trust with levels of knowledge integration surrounding agricultural technologies and their adoption. The findings suggest that increasing the planning and follow-up of newly introduced agricultural technologies has the potential to encourage interdisciplinary approaches and improve food security outcomes.

Zero-tillage (ZT) is a proven technology for enhancing wheat productivity and, hence, food security in the Indo-Gangetic Plains, while reducing production costs. However, very few farmers possess their own tractors much less the specialized seed drills required to implement the technology. As a consequence, adoption of ZT largely hinges on affordable access to custom hire services. In Eastern India, the service economy for ZT is expanding, but remains in the early stages of growth. ZT service businesses remain largely uncharacterized, and related business dynamics poorly understood. To address this knowledge gap and derive recommendations for an efficient targeting of public sector support for those service providers (SPs) who are poised for growth, we identified factors that influence ZT entrepreneurship, encompassing new business formation and the resulting scale of the enterprise. We used data from a census of 270 ZT SPs in Bihar, as documented by the Cereal Systems Initiative for South Asia (CSISA). To identify determinants of engaging in ZT service provision, the data were pooled with those of 1000 randomly-selected wheat farmers located in the same districts. We applied Heckman’s two-step estimation procedure to derive unbiased estimates of determinants of the scale of the ZT service businesses. ZT SPs are generally larger, tractor-owning farmers who have taken up service provision as a side business since 2010 or later. Only 8.3 % of the surveyed farm households owned a tractor, demonstrating the importance of service provision for accessing ZT and other mechanization technologies. ZT SPs expanded their businesses considerably from 2011 to 2012 to an average total of 20 clients and 50 ha serviced per SP. However, larger areas were primarily achieved by servicing larger client farms. Well-educated farmers with larger land holdings and extensive social networks are most likely to become ZT SPs. However, among this stratum, the relatively smaller scale farmers were most likely to provide services at a sizeable scale. To efficiently accelerate the spread of ZT technology, we conclude that these smaller-scale tractor-owning farmers are the most sensible targets for purchase subsidies on ZT drills as well as the primary audience for business development training. Since a considerable fraction of the ZT area expansion resulted from service provision to larger client farms, there is a need to develop business models that enhance the social inclusiveness of ZT services by reducing the transaction costs of reaching smallholders.

Increased use of inorganic fertilizer in smallholder farming systems can significantly raise crop productivity, enabling farming households to improve their food security both directly, through greater food supply, and indirectly, though higher agricultural incomes, and to set themselves economically on a pathway out of poverty. Low fertilizer use by African smallholder farming households is evidence of the difficulties they face in accessing the commercial input at a price that will allow them to obtain sufficient and reliable returns from their investment. This paper presents the results of a broad study of fertilizer supply to smallholder farmers in Mozambique, Tanzania, and Uganda to assess whether costs faced at various points along the import and marketing chain, or the absence of key public goods and services, reduce the access that smallholder farmers have to fertilizer. The study involved a mixed methods approach that included for each country a review of the literature on fertilizer supply, demand, and use; interviews with key participants in fertilizer import and marketing; and two surveys – one with farmers and one with input suppliers. We found that the governments of the three countries have used distinct approaches in developing or regulating the fertilizer sub-sector. Based on use levels, Tanzania has been the most successful in ensuring access to fertilizer for its farmers. Mozambique lags the most. Several areas were identified where government inaction or misdirected efforts are having an adverse effect on efforts to increase agricultural productivity through the increased use of inorganic fertilizer. The most important constraints to increased fertilizer uptake stem from missing public goods that are not specific to inorganic fertilizer but are implicated in broad efforts to increase rural economic growth, particularly in continuing to expand and deepen crop output markets to ensure reliable returns to the use of fertilizer and in improving rural transportation networks. In addition, the three governments can do more to foster competitive agricultural input markets. All propose more state regulation on trade in inorganic fertilizer than is warranted. Moreover, particularly in Tanzania, by not consistently acting in line with policies for agricultural commercialization in place, government increases the commercial risks faced by both input suppliers and farmers and undermines the development of vibrant agricultural markets, both for inputs and outputs, including food.

Food environment refers to the physical, social, cultural, economic and political contexts in which people engage with food systems in order to acquire, prepare and consume food. In 2016, we investigated the food environment of districts in Juiz de Fora, Minas Gerais, Brazil, according to different socio-economic levels. We proposed a categorization of food establishments according to the NOVA food classification, devised thematic maps, tested the significance of food retailers’ agglomerations by univariate K function and detected district clusters using variables of interest. A total of 23 districts (19.1%) presented high or very high vulnerability. Establishments only or mainly selling ultra-processed foods presented higher frequencies (52.7%) in comparison to other categories throughout the city. The downtown district had the most of all types of establishments. Districts of greater vulnerability had fewer establishments. The environmental iniquities we have identified reinforce the need to implement public policies that promote healthy urban food environments.

International experience reveals that food policy development often occurs in silos and offers few tangible mechanisms to address the interlinked, systemic issues underpinning food and nutrition insecurity. This paper investigated what South African government policies cover in terms of different aspects of the food system, who is responsible for them, and how coordinated they are. Policy objectives were categorized into seven policy domains relevant to food systems: agriculture, environment, social protection, health, land, education, economic development, and rural development. Of the ninety-one policies reviewed from 1947–2017, six were identified as being "overarching" with goals across all the domains. About half of the policies focused on agriculture and the environment, reflecting an emphasis on agricultural production. Policies were formulated and implemented in silos. As a result, learning from implementation, and adjusting to improve impact has been limited. Particularly important is that coordination during implementation, across these complex domains, has been partial. In order to achieve its stated food and nutrition outcomes, including Sustainable Development Goal (SDG) 2, South Africa needs to translate its policies into tangible, practical plans and processes guided by effective coordination and alignment. Key recommendations are practically to align policies to a higher-level "food goal", establish better coordination mechanisms, consolidate an effective monitoring and evaluation approach to address data gaps and encourage learning for adaptive implementation. Actively engaging the existing commitments to the SDGs would draw stated international commitments together to meet the constitutional commitment to food rights into an overarching food and nutrition security law.