Research & reports

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.

Ajadi B.S., Adeniyi Adedapo, A. M. Tunde · Global Journal of Human-Social Science · Nigeria

This paper examined the impact of climate on urban agriculture in Ilorin city, Nigeria, by collecting 10 years of climatic data (rainfall, evaporation, relative humidity, temperature, sunshine hours) and agricultural data for rice, sorghum, maize, cowpea, and yam. Using multiple regression, trend analysis, and correlation techniques, the study found that the selected climatic parameters had a weak correlation with urban agriculture during the review period.

AbdouMaliq Simone · Social Dynamics · Africa

This essay explores urban economies in Kinshasa, focusing on how residents navigate complex livelihood strategies. It examines an important retail market, urban agriculture, and a superblock development, demonstrating that the economy in Kinshasa involves assembling disparate people and things into provisional bundles. The study suggests that the economy functions to keep the value of things open to new uses and sites, highlighting the need to appreciate the oscillations of value in impoverished urban districts.

Eric Antwi Ofosu · · Sub-Saharan Africa

The conditions that led to large public investment in irrigation in the second half of the 20th century have changed radically, requiring substantial shifts in irrigation strategies today. The mid-1980s saw the rapid development of shallow tubewells and conjunctive use of surface and groundwater in India and Pakistan due to affordable drilling and pumping technologies. Similarly, the 1990s witnessed a substantial rise in private irrigated peri-urban agriculture in sub-Saharan Africa, driven by increased demand for fresh fruits and vegetables from growing cities.

Jonathan Crush, Alice J. Hovorka, Daniel Tevera · Progress in Development Studies · Africa

This article examines the contemporary importance of household food production in poor urban communities across 11 Southern African Development Community (SADC) cities. It finds that urban food production is not particularly significant in most communities, with many more households relying on supermarkets and the informal sector for food access. Furthermore, few households derive income from selling produce, though the situation varies considerably by city.

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.

Sarah Ward · · South Africa (Cape Town)

This article features an interview with Christina Kaba, who works for Abalimi, an urban agriculture and environmental action association operating in socio-economically neglected townships on the Cape Flats near Cape Town, South Africa. Kaba assists individuals, groups, and community-based organizations in initiating and maintaining permanent organic food growing and nature conservation projects, which serve as a basis for sustainable lifestyles, self-help job creation, poverty alleviation, and environmental renewal.

Jonathan Crush, Bruce Frayne · Journal of Southern African Studies · Southern Africa

This article reviews urban food sources in Southern African cities, focusing on supermarket expansion, its impact on informal food suppliers, and the relative insignificance of urban agriculture for poor urban households. Findings from an eleven-city survey by AFSUN are presented, highlighting that urban agriculture has limited significance in addressing urban food insecurity in the region.

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.

S. A. Materechera · African Journal of Agricultural Research · Africa

A study of soil salinity in irrigated fields used for urban agriculture in a semi-arid region of South Africa. It compares sodium levels (19.3 vs. 9.8), pH (7.13 vs. 6.3) and electrical conductivity ECe (22.1 vs. 7.9 dS/m) between topsoil and subsoil layers, finding that calcium, magnesium and potassium (unlike sodium) were higher in the top than the subsoil layer, while pH and ECe did not differ significantly by depth overall. By irrigation method, basin irrigation produced the highest accumulation of calcium, magnesium, potassium and sodium, followed by drip and then sprinkler irrigation, with the same ranking (basin > drip > sprinkler > control) for pH and ECe; sprinkler irrigation was the only method showing higher pH and ECe at 10-20 cm depth than at 0-10 cm. The study concludes that irrigation is increasing soil salinity and points to the need for sound irrigation water management, particularly appropriate irrigation scheduling.

Ardjouma Dembélé, Oumarou Badini, Alessandro Abbà · InTech eBooks · Africa

A book chapter surveying the state of urban agriculture in African cities. As rural-to-urban migration increases demand for food quantity and quality, urban agriculture is described as able to contribute to livelihoods and economic growth; horticulture is called a vital economic sector, citing figures such as Côte d'Ivoire's fruit and vegetable exports to the EU exceeding 360,000 tons, Burkina Faso's 2007 green bean exports of over 925,000 tons, and Mali's tomato and okra production reaching over 17,000 tons and 8,600 tons respectively. The chapter also notes that the horticultural sector, including urban agriculture, faces pest attacks and phytosanitary problems and must comply with pesticide regulations and quality-control (traceability) standards required by export markets.

Haruna Haruna · · Africa

A study of soils irrigated with sewage water on Fadama floodplain land in northern Nigeria used sequential extraction to determine the mobility and availability of cadmium, copper, nickel, lead and zinc. The residual fraction held the largest pool of all five metals, but 2.7-70.2% was present in the potentially available, non-residual fraction. Contamination by cadmium and nickel was less severe than by lead, copper and zinc, and mobility/bioavailability ranked Pb > Zn > Cu > Ni > Cd.

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.

Morongoa Rosina Pako · · South Africa

This qualitative study assesses the Mogabane Community Garden Project in South Africa to determine why it did not reach its objective of poverty reduction in the community. It situates the project against South Africa's poverty lines — roughly 33% of the population living on less than R271/month, 50% on less than R422/month, and 79.1% on less than R1,230/month, with the highest poverty rates in the Eastern Cape (68.3%) and Limpopo (60.7%) provinces and the lowest in the Western Cape (20%) and Gauteng (28.8%) — and the government's post-1994 anti-poverty programs spanning social assistance, employment generation, enterprise development, basic household security, social services, disaster relief, and employment-related social insurance. Against this backdrop, the study assessed the Mogabane project and confirmed that it failed to achieve its poverty-reduction objective.

Chabalani Ndlovu, Shethile Simelane, Kgosiwele Mngeni · Zenodo (CERN European Organization for Nuclear Research) · South Africa

In Cape Town's high-rise neighborhoods, South Africa, where geographic constraints and socio-economic disparities limit access to fresh produce, a mixed-methods study using surveys, interviews and observation compared participants who regularly used community garden spaces with a control group who did not. Community gardens yielded an average of 50% more fresh produce per square meter than traditional urban plots, contributing to local food security, and garden users showed health changes including better nutrition and lower obesity rates.

Diana Lee-Smith · Environment and Urbanization · Africa (Equatorial Africa)

This article reviews empirical data on urban agriculture in equatorial Africa, primarily East Africa and Cameroon, updating previous work. It quantifies the extent of urban agriculture, assesses its relationship to food security and poverty, and discusses its role in eco-cycles and policy-making efforts in three East African cities. The article concludes that urban agriculture is increasing, beneficial for health and poverty alleviation, but better-off households currently benefit more than poor households.

Messay Mulugeta Tefera · Journal of sustainable development in Africa · Ethiopia (Adama)

This study assessed the role of urban agriculture in attaining urban food security for smallholders in Adama town, central Ethiopia. Findings confirmed that urban agriculture plays a significant role in urban household food security. Over 40% of the surveyed households obtained well over the nationally set minimum dietary energy requirement solely from their urban farmlands.

Wycliffe Cherono Nyaga · Zenodo (CERN European Organization for Nuclear Research) · Kenya (Nairobi)

This study in Nairobi, Kenya, investigated the impact of urban agriculture community gardens on elderly food security, health outcomes, and social support. Surveys and interviews with participants in four gardens revealed a significant improvement in dietary variety (p < 0.05) among elderly residents, with a 25% average increase in vegetable intake. Social support networks within and outside the gardens were also crucial for health maintenance.

Mohammed Murtala Ruma, Abdullahi Usman Sheikh · African Journal of Environmental Science and Technology · Nigeria (Katsina)

This paper investigated the status of wastewater reuse in urban farming in Katsina, Nigeria, by interviewing 120 households out of 250 registered with the Katsina Urban Planning Authority. It was found that wastewater reuse in urban farming is a full-time, sole income earner for many households and is indispensable for this semi-arid city. However, the urban planning process has not officially recognized or given attention to this important activity.

P.B. Abdulsalam-Saghir, A.O Oshijo · Journal of Agricultural Extension · Nigeria

This study evaluated integrated urban micro farming in Odeda Local Government Area, Ogun State, Nigeria, using data from 80 randomly selected urban and peri-urban farmers. Findings showed that 62% engaged in integrated farming, 60% experienced food crises, and major causes included rapid rural/urban migration (37%), inadequate credit facilities (26%), and high land lease rates for city development (11%). The study concluded that urban micro farming serves as a buffer for providing food to urban populations.

Femke Hoekstra, Rob Small · Urban Agriculture Magazine · South Africa

Abalimi Bezekhaya, a civil society organization in Cape Town, South Africa, has worked for 28 years with small-scale producers, primarily unemployed women, in Khayelitsha, Nyanga, and surrounding townships. These micro-farmers engage in home and community gardening to supplement their diet, improve household food and nutritional security, and generate sustainable income. The initiative also fosters community building, personal growth, and self-esteem among participants.

M. Tshitangoni, A. Okorie, Joseph Francis · Scientific Research and Essays · South Africa (Limpopo Province)

A study conducted in Vhembe District, Limpopo Province, South Africa, assessed challenges faced by 30 poverty alleviation projects (community gardens, poultry, etc.). A survey of 108 beneficiaries identified numerous inception-based challenges, such as lack of training (90%), lack of funds (80%), and fraudulent use of funds (33%), as well as operation-based challenges like poor record keeping (70%) and unavailability of markets (60%). These challenges were found to significantly limit the performance of the poverty alleviation projects.

Dick Foeken, Samuel Owuor, Alice Mwangi · DOAJ (DOAJ: Directory of Open Access Journals) · Kenya (Nakuru)

This paper examined school farming in Nakuru town, Kenya, focusing on current practice, its contribution to school feeding programs, and the challenges it faces. Based on a survey conducted in almost all primary and secondary schools in Nakuru, it shows that school farming and school feeding are common practices in the town. In many cases, school farming contributes to school feeding programs.

Dick Foeken, Samuel Owuor, Alice Mwangi · Children Youth and Environments · Kenya

A survey was conducted in almost all primary and secondary schools in Nakuru Town, Kenya, to examine the extent to which school farming contributes to school feeding programs. The survey found that while school farming and feeding programs are common practice, school farming substantially contributes to school feeding programs in relatively few cases.