Research & reports

Chinenye Agbaje, Ogechi Nwachukwu · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Lagos)

This study investigated the efficacy of smart irrigation schemes to address water management challenges in urban rooftop gardens in Lagos, Nigeria. Employing a mixed-method approach with quantitative data analysis and qualitative interviews, it found that smart irrigation systems reduced water consumption by an average of 25% compared to traditional methods, with a 95% confidence level. The research provided robust evidence for the efficacy of smart irrigation schemes in urban rooftop gardens, offering policy recommendations for sustainable water management policies.

N E Etim, J J Dukiya · International Journal of Advanced Remote Sensing and GIS · Nigeria (Abuja)

A study in the Kuje area council of Abuja, Nigeria, used questionnaires and multi-temporal satellite images from 1975–2010 to assess urban encroachment on agricultural lands. It found that urban encroachment into agricultural lands is occurring at an alarming rate of 15.7 km² annually, resulting in a total loss of 509 km² of agricultural land to urbanization over 35 years.

Phil. Caleb Mireri · African Journal of Agricultural Research · Kenya (Kisumu)

This study surveyed 194 urban farmers in Kisumu municipality, Kenya, to assess urban agriculture's role in income, employment, and food supply. It found that most urban farmers and their employees receive very low income, with a mean monthly income of US$135 (US$0.64 per person per day), which is below the acceptable one dollar a day per person. Urban agriculture primarily supplements food requirements for the urban poor and provides income for a few commercial farmers.

Teferi Daba Lemma, M. S. A. Rao, M Prasada Rao · Zenith international journal of business economics and management research · Ethiopia

This study assessed the economic sustainability of urban agriculture in central Ethiopia, collecting primary data from 280 urban and peri-urban vegetable farmers. Findings indicated that urban agriculture is a viable livelihood strategy from a financial perspective. However, city administrations and policymakers pay little attention to supporting this sub-sector, suggesting that legal recognition and support would make it a more reliable strategy.

Teferi Daba Lemma, M. S. A. Rao · · Ethiopia

This study assessed the social and environmental sustainability of urban and periurban agriculture (UPA) in selected towns of Ethiopia, using primary data from 280 households via questionnaires and interviews. The findings indicate that the environmental and health aspects of UPA sustainability are compromised by extensive use of chemical inputs. Furthermore, UPA is inclined to be unsustainable from a social and political perspective.

Adedayo A, A. M. Tunde · Sustainable Agriculture Research · Nigeria (Kwara State)

This study assessed the challenges faced by women farmers in urban areas of Kwara State, Nigeria. A total of 1,801 women farmers were sampled from different urban areas, and Focus Group Discussions were conducted. Matrix ranking revealed that lack of credit facilities was one of the most significant challenges hindering increased production by women. Other identified challenges included restricted accessibility to land and a lack of farm input.

Nhamo Makhuwa · Zenodo (CERN European Organization for Nuclear Research) · Mozambique

A 2013 study presented a theoretical framework underpinning the impact of school gardens on nutrition and academic outcomes in developing countries like Mozambique, where school gardens are recognized as a potential intervention. This framework, built upon existing literature on environmental education, agriculture-based interventions, and their impact on nutritional status and cognitive development, emphasized the need for further empirical research to validate these insights and inform policy recommendations for integrating school gardens into educational curricula.

Franklin Obeng‐Odoom · Agroecology and Sustainable Food Systems · Africa

Data from living standards and demographic health surveys and poverty trend studies in various African countries indicate that urban agriculture substantially contributes to food production and farmers' incomes. The article argues that urban agriculture empowers rather than limits, but to realize its full potential for food security in African cities, it must be understood within a broader socioeconomic and political reality. Factors like food safety, access, and distribution require careful attention.

Messay Mulugeta · DOAJ (DOAJ: Directory of Open Access Journals) · Ethiopia

This study assessed the need for a policy framework for urban/peri-urban agriculture (UPA) in Ethiopia. It was based on a desk review of other countries' experiences and policy frameworks, supplemented by primary and secondary data from Ethiopia and interviews with legislators, experts, urban farmers, and urban planners. The study's synthesis indicates that formulating a policy framework and by-laws for UPA in Ethiopia is imperative for the country to fully utilize the sector's potential.

Doreen Atkinson · African Journal of Range and Forage Science · South Africa

This paper critiques the assertion that commercialization of smallholder agriculture poses dangers for sustainable rangeland management in South Africa. It argues that a range of policy options are required, including commercialization and subsistence farming, large-scale and smallholder farming, various land tenure options, rural and peri-urban farming, and part-time farming. The case of municipal commonage land is used to demonstrate the effectiveness of flexible policy options regarding land ownership, farming scale, and the social nature of farming, but it is noted that effective institutional development is a key requirement in all cases.

Dick Foeken · Journal of Geography and Regional Planning · East Africa

This paper, discussing the role of urban agriculture in the development of middle-sized towns using three East African cases (Nakuru, Morogoro, Mbeya), argues that urban agriculture can be transformed into a thriving sector contributing to employment, income, and food provision. It describes the current situation, focusing on resource allocation, benefits, and environmental challenges, and concludes that a favorable legal and policy setting, support and education, and improved market conditions, led by both government and the private sector, are necessary to achieve this.

Diana Lee-Smith · City · Africa

This paper reviews a synthesis from late 2010 on Urban and Peri-urban Agriculture (UPA) data from East and Central Africa, identifying major issues such as UPA's relationship to food security and poverty, its waste recycling effectiveness, and policy responses. The analysis is updated with data from Southern Africa, suggesting UPA's capacity to recycle nutrients, particularly on efficient crop-livestock backyard farms, signifies its potential role in making cities sustainable.

Chikwendiu Okechukwu, Femi Adekunle, Sunday Nwokolo · Zenodo (CERN European Organization for Nuclear Research) · Nigeria

A three-year mixed-methods study in selected urban areas of Nigeria assessed the impact of Integrated Pest Management (IPM) among gardeners. Community members' understanding of IPM principles significantly improved, with 20% initially reporting successful pest management strategies, increasing to 75% over the three years. The findings suggest that sustained education and support are crucial for effective IPM adoption in urban gardening communities.

Jane Battersby · Geography Compass · Sub-Saharan Africa

A critical review (Geography Compass, 2013) traces the historical and political trajectory of urban food security research in sub-Saharan Africa, arguing the field has often been narrowly framed as a developmental rather than political problem. It links the rise of urban agriculture as a research and policy focus to the region's experience of structural adjustment, and discusses emerging "repoliticized" research trajectories, concluding these could enable synergies between urban food research in the global North and South.

Godwin Arku, Paul Mkandawire, Nathaniel Djanmah Aguda, Vincent Kuuire · · Africa

The history of urban agriculture in Africa dates back to the colonial era, when farming flourished in urban areas primarily to meet the consumption needs of bureaucrats, settlers, and other elites. Urban agriculture is considered a potentially viable policy response to the complex challenge of feeding a growing urban population amidst declining food production in rural areas.

Anthonia N. Asadu, E. M. Igbokwe, Jane M. Chah, I A Enwelu · DOAJ (DOAJ: Directory of Open Access Journals) · Nigeria

A study of Enugu Urban, Nigeria, examining farmers' perceptions of the health and environmental hazards posed by keeping livestock in urban areas, and the implications for climate change mitigation. Seventy-five heads of household were freely sampled and interviewed, with data analyzed using percentages and means. Most farmers kept improved chicken breeds under an intensive system. All respondents were aware of health and environmental implications of urban livestock keeping, but only 4.0% were aware that livestock could contribute to climate change. Reported environmental issues included crop destruction (89.3%), filth in urban areas (89.3%) and noise (88.0%); health issues included disease spreading (50.7%), accidents (46.7%) and bad smell (86.7%). Perceived control measures included proper waste disposal (mean 1.79), seeking veterinary services (mean 1.85), regular shed cleaning (mean 1.80) and provision of extension services (mean 1.85). The study recommends integrating urban agriculture into urban health and environmental policy and having extension services raise awareness of livestock's climate impact among urban keepers.

Tesfamichael Fessahaie · · Africa (Ethiopia)

A thesis examining peri-urban agriculture in Asmara, Eritrea, within an analytical framework of urban population growth encompassing natural population increase, rural-urban migration, and outward movement linked to urban expansion. It draws on primary field data collected with research assistants, secondary data from Ministry of Agriculture and Ministry of Public Works reports, and focus group discussions. Respondents in the context of natural population growth were found to make a viable living from peri-urban agriculture, but also to face considerable challenges. Three sub-groups of farmers were identified; poultry farmers were the most vulnerable, owing to high input costs, uncertainty from avian flu, and an undeveloped distribution network. Vegetable producers had a sophisticated marketing network but low levels of education, large households, and an impending shortage of land and water. The abstract's description of agriculturalists who migrated to Asmara is cut off before stating a conclusion.

MM Ruma · Bayero Journal of Pure and Applied Sciences · Nigeria

This paper examined wastewater reuse in urban farming in Katsina, Nigeria, by interviewing 130 households out of 276 registered with the Katsina Urban Planning Authority. It found that wastewater reuse in urban farming is a full-time, sole income source for many households and an indispensable activity for the town. Recommendations were provided for promoting and integrating this activity into local planning processes.

A. K. Ango, Aliyu Abdullahi, Bello Bunza Abubakar · International Research Journal of Agriculture and Soil Science · Nigeria (Birnin Kebbi)

A study in Birnin Kebbi metropolis, Nigeria, during the 2009/2010 cropping season surveyed 100 urban farmers across 10 districts. The study found that urban farmers cultivate food crops and rear animals, but identified low capital, lack of adequate funds, strict land-use regulations, and lack of agricultural inputs as major problems. Socio-economic status, family size, and education level were significantly related to participation in urban farming.

Olugbenga I. Akinmoladun, O. T. Adejumo · Journal of Geography and Regional Planning · Nigeria (Lagos)

This research inventories potential land and water resources for urban agriculture in metropolitan Lagos, Nigeria, using secondary data from government agencies and primary field observations. The study found that Lagos metropolis requires 18 times its current size (3,577 km²) to sustainably feed its population. It identified 4,293 hectares of potential land and 28,890 hectares of potential water resources under federal, state, and private ownership.

H.S. Geyer, Bennie Schloms, Danie du Plessis, Amanda van Eeden · DOAJ (DOAJ: Directory of Open Access Journals) · South Africa (Cape Town)

An analysis of agricultural land consumption within the Cape Town urban edge between 2002 and 2007 revealed that low-density residential development is the primary consumer of high-potential agricultural land. Commercial, industrial, and informal residential developments had minimal impact on agricultural land loss. High-potential agricultural land is not adequately protected, and urban agriculture is constrained by competition with more profitable land uses like residential development.

N. Karanja, F. Yeudall, S. Mbugua, M. Njenga, G. Prain, D. C. Cole, A. L. Webb, D. Sellen, C. Gore, J. M. Levy · Urban agriculture · Sub-Saharan Africa (Kenya (Nakuru))

This paper outlines the conception, design, and implementation process of a project aimed at strengthening technical, environmental, financial, and social capacity for urban agriculture (UA) among HIV-affected households in Nakuru, Kenya. Key lessons learned include the value of multi-stakeholder partnerships to address complex issues in urban social agriculture, the crucial role of self-help group organizations, and securing institutional commitments to support farming by HIV-affected individuals. The usefulness of mixed-methods evaluative tools for monitoring progress and identifying supports and barriers to success is also highlighted.

Romborah Simiyu, Dick Foeken · · Kenya

This chapter reviews national and Eldoret Municipal Council laws and policies related to Urban Agriculture (UA) in Eldoret town, Kenya. It assesses how these policies have shaped the livelihoods of urban farmers and the development of UA as a strategy for urban dwellers. The chapter also reflects on recent developments towards a more facilitative policy framework for UA at the national level.

I. K. Adewumi, Adebanji Samuel Ogbiye, E. O. Longe, David O. Omole · Covenant University Repository (Covenant University) · Nigeria (Ota)

This study assessed the impact of industrial wastewaters discharged into River Atuwara in Ota, Nigeria, on water quality using standard physical and chemical analyses and QUAL2K software. The majority of water quality parameters exceeded maximum permissible concentrations, with BOD at ≥ 31 mg/L, COD at ≥ 181 mg/L, and alkalinity at ≥ 138.4 mg/L. High concentrations of heavy metals, including Cadmium, Pb, Zn, Fe, and Mn, were detected, indicating an environmental hazard for riparian users.

ON Nwaogwugwu, JU Ulebor, AC Agumagu, CL Aboh · Journal of Agriculture and Social Research (JASR) · Nigeria

This paper examines rural-urban migration's impact on agricultural and national development in Nigeria and argues that extension policy has focused primarily on rural agriculture, neglecting urban agriculture's role in poverty alleviation. It recommends that extension agencies organize urban-specific extension services to inform smallholder urban farmers about which food products are in demand in urban areas, without presenting original survey or experimental data.