scholarly journals Understanding the performance of food production in sub-Saharan Africa and its implications for food security

2013 ◽  
Vol 5 (11) ◽  
pp. 425-443 ◽  
Author(s):  
M. Demeke
Keyword(s):  
Food Security ◽  
Food Production ◽  
Sub Saharan Africa ◽  
Sub Saharan

scholarly journals Dilemma of nitrogen management for future food security in sub-Saharan Africa – a review

Soil Research ◽  
2017 ◽  
Vol 55 (6) ◽  
pp. 425 ◽  
Author(s):  
Cargele Masso ◽  
Fredrick Baijukya ◽  
Peter Ebanyat ◽  
Sifi Bouaziz ◽  
John Wendt ◽  
...  
Keyword(s):  
Food Security ◽  
Food Production ◽  
Smallholder Farmers ◽  
Lake Victoria ◽  
Research Capacity ◽  
Sub Saharan Africa ◽  
N Recovery ◽  
Sub Saharan ◽  
Other World ◽  
N Use

Food security entails having sufficient, safe, and nutritious food to meet dietary needs. The need to optimise nitrogen (N) use for nutrition security while minimising environmental risks in sub-Saharan Africa (SSA) is overdue. Challenges related to managing N use in SSA can be associated with both insufficient use and excessive loss, and thus the continent must address the ‘too little’ and ‘too much’ paradox. Too little N is used in food production (80% of countries have N deficiencies), which has led to chronic food insecurity and malnutrition. Conversely, too much N load in water bodies due mainly to soil erosion, leaching, limited N recovery from wastewater, and atmospheric deposition contributes to eutrophication (152 Gg N year–1 in Lake Victoria, East Africa). Limited research has been conducted to improve N use for food production and adoption remains low, mainly because farming is generally practiced by resource-poor smallholder farmers. In addition, little has been done to effectively address the ‘too much’ issues, as a consequence of limited research capacity. This research gap must be addressed, and supportive policies operationalised, to maximise N benefits, while also minimising pollution. Innovation platforms involving key stakeholders are required to address N use efficiency along the food supply chain in SSA, as well as other world regions with similar challenges.

scholarly journals Optimizing cropland cover for stable food production in Sub-Saharan Africa using simulated yield and Modern Portfolio Theory

2014 ◽  
Vol 5 (2) ◽  
pp. 1571-1606 ◽  
Author(s):  
P. Bodin ◽  
S. Olin ◽  
T. A. M. Pugh ◽  
A. Arneth
Keyword(s):  
Food Security ◽  
Food Production ◽  
Local Food ◽  
Local Population ◽  
Portfolio Theory ◽  
Sub Saharan Africa ◽  
Modern Portfolio Theory ◽  
Local Food Production ◽  
Sub Saharan ◽  
Access To Food

Abstract. Food security can be defined as stable access to food of good nutritional quality. In Sub Saharan Africa access to food is strongly linked to local food production and the capacity to generate enough calories to sustain the local population. Therefore it is important in these regions to generate not only sufficiently high yields but also to reduce interannual variability in food production. Traditionally, climate impact simulation studies have focused on factors that underlie maximum productivity ignoring the variability in yield. By using Modern Portfolio Theory, a method stemming from economics, we here calculate optimum current and future crop selection that maintain current yield while minimizing variance, vs. maintaining variance while maximizing yield. Based on simulated yield using the LPJ-GUESS dynamic vegetation model, the results show that current cropland distribution for many crops is close to these optimum distributions. Even so, the optimizations displayed substantial potential to either increase food production and/or to decrease its variance regionally. Our approach can also be seen as a method to create future scenarios for the sown areas of crops in regions where local food production is important for food security.

The Oxford Handbook of Food, Politics, and Society

2014 ◽  
Keyword(s):  
Developing Countries ◽  
Food Security ◽  
Food Production ◽  
Production Systems ◽  
Sub Saharan Africa ◽  
Agricultural Technologies ◽  
The North ◽  
Food And Agriculture ◽  
Science And Politics ◽  
Sub Saharan

This book explores the complex interrelationships between food and agriculture, politics, and society. More specifically, it considers the political aspects of three basic economic questions: what is to be produced? how is it to be produced? how it is to be distributed? It also outlines three unifying themes running through the politics of answering these societal questions with regard to food, namely: ecology, technology and property. Furthermore, the book examines the tendency to address the new organization of global civil society around food, its production, distribution, and consequences for the least powerful within the context of the North-South divide; the problems of malnutrition as opposed to poverty, food insecurity, and food shortages, as well as the widespread undernutrition in developing countries; and how biotechnology can be used to ensure a sustainable human future by addressing global problems such as human population growth, pollution, climate change, and limited access to clean water and other basic food production resources. The influence of science and politics on the framing of modern agricultural technologies is also discussed, along with the worsening food crisis in Sub-Saharan Africa, food security and food safety, and the relationship between gender inequality and food security. Other chapters deal with the link between land and food and its implications for social justice; the "eco-shopping” perspective; the transformation of the agrifood industry in developing countries; the role of wild foods in food security; agroecological intensification of smallholder production systems; and the ethics of food production and consumption.

scholarly journals Agriculture and Food Security in Mozambique

2018 ◽  
Vol 1 (1) ◽  
pp. 7 ◽  
Author(s):  
Jorge Ferrão ◽  
Victoria Bell ◽  
Luis Alfaro Cardoso ◽  
Tito Fernandes
Keyword(s):  
Food Security ◽  
Food Production ◽  
Development Process ◽  
Short Review ◽  
Sub Saharan Africa ◽  
Sub Saharan ◽  
Agriculture And Food ◽  
General Wellbeing

The objective of this short review is to contribute to the debate on the role of agriculture transformation in the development process and as an engine to reduce poverty and improve general wellbeing through better access to nutrients in Mozambique. Agricultural services are organized by Provinces but still there is no accurate data on food production, consumption and trade trends in a large sample. It is recognized the complexity of the food security concept and the need of a multidimensional definition and approach. The increase in agricultural productivity can probably be seen as a necessary but not a sufficient condition to achieve long term food security in Mozambique or Sub-Saharan Africa.  Competing views about the relevance of agriculture for growth and development imply different policy priorities in Africa.

scholarly journals Is High Whitefly Abundance on Cassava in Sub-Saharan Africa Driven by Biological Traits of a Specific, Cryptic Bemisia tabaci Species?

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 260
Author(s):  
Habibu Mugerwa ◽  
Peter Sseruwagi ◽  
John Colvin ◽  
Susan Seal
Keyword(s):  
Food Security ◽  
Bemisia Tabaci ◽  
Development Time ◽  
Adult Emergence ◽  
Sub Saharan Africa ◽  
Biological Traits ◽  
Population Development ◽  
Species Classification ◽  
First Instar ◽  
Sub Saharan

In East Africa, the prevalent Bemisia tabaci whiteflies on the food security crop cassava are classified as sub-Saharan Africa (SSA) species. Economically damaging cassava whitefly populations were associated with the SSA2 species in the 1990s, but more recently, it has been to SSA1 species. To investigate whether biological traits (number of first instar nymphs, emerged adults, proportion of females in progeny and development time) of the cassava whitefly species are significant drivers of the observed field abundance, our study determined the development of SSA1 sub-group (SG) 1 (5 populations), SG2 (5 populations), SG3 (1 population) and SSA2 (1 population) on cassava and eggplant under laboratory conditions. SSA1-(SG1-SG2) and SSA2 populations’ development traits were similar. Regardless of the host plant, SSA1-SG2 populations had the highest number of first instar nymphs (60.6 ± 3.4) and emerged adults (50.9 ± 3.6), followed by SSA1-SG1 (55.5 ± 3.2 and 44.6 ± 3.3), SSA2 (45.8 ± 5.7 and 32.6 ± 5.1) and the lowest were SSA1-SG3 (34.2 ± 6.1 and 32.0 ± 7.1) populations. SSA1-SG3 population had the shortest egg–adult emergence development time (26.7 days), followed by SSA1-SG1 (29.1 days), SSA1-SG2 (29.6 days) and SSA2 (32.2 days). Regardless of the whitefly population, development time was significantly shorter on eggplant (25.1 ± 0.9 days) than cassava (34.6 ± 1.0 days). These results support that SSA1-(SG1-SG2) and SSA2 B. tabaci can become highly abundant on cassava, with their species classification alone not correlating with observed abundance and prevalence.

Cassava Processing in Sub-Saharan Africa: the Implications for Expanding Cassava Production

1994 ◽  
Vol 23 (3) ◽  
pp. 197-205 ◽  
Author(s):  
Felix Izu Nweke
Keyword(s):  
Food Security ◽  
Water Supply ◽  
Sub Saharan Africa ◽  
Wide Range ◽  
Intensive Use ◽  
Cassava Production ◽  
Sub Saharan ◽  
Processing Techniques ◽  
Technical Solutions ◽  
Poor Soil

Cassava makes an important contribution to improving food security and rural incomes in sub-Saharan Africa, as it is tolerant of drought and poor soil and its cultivation does not require much labour. However, the fresh roots are bulky and perishable and need to be processed before they can be marketed; processing also removes the cyanogens which make many varieties poisonous in their raw form. Cassava roots are turned into granules, flours, pastes and chips, with a wide range of flavours and appearances for different areas and markets. Many different processing techniques are used, some of which make intensive use of fuelwood while others require a plentiful water supply. These requirements, as well as the need for a good transport and marketing infrastructure, limit the expansion of cassava production in sub-Saharan Africa, but technical solutions are being found.

scholarly journals Climate Smart Agriculture as Final Goal: Use of Improved Cereals Varieties in Cinzana, Mali.

2017 ◽  
Vol 5 (1) ◽  
pp. 50
Author(s):  
Kalifa TRAORE ◽  
Daouda SIDIBE ◽  
Harouna COULIBALY
Keyword(s):  
Food Security ◽  
Water Conservation ◽  
Crop Production ◽  
Heavy Rain ◽  
Sub Saharan Africa ◽  
Improved Varieties ◽  
Farmer Organizations ◽  
Conservation Technology ◽  
Sub Saharan ◽  
Smart Agriculture

Climate variability and change are recognized as the greatest challenge to crop production and food security in sub-Saharan Africa. This work assesses farmers’ perception on the contribution of improved varieties of sorghum and millet in the search for food security in Cinzana rural commune of Mali in the current context of climate change.The methodology was based on focus group surveys with both, the decentralized technical services, administrative and municipal authorities, NGOs, farmer organizations and producers but also farmer exchanges visits on improved varieties tested in farmer’s field.The result shows that climate change is described by the majority of farmers (87%) as decrease in rainfall amount and length of rainy seasons, high increases in temperature and high deforestation and water scarcity. Unpredictability of climate, (80%), drought (70%) and heavy rain (65%) occurrence were identified as major perception of farmers on risks in climate for crop production and soil degradation. After farmers’ study tour, 80% of the participants mentioned a better growth of plants and increase of soil moisture with the use of contour ridges tillage as a water conservation technology. Adapted cycle (55%) and higher yield (37%) of improved varieties were farmer’s main drivers for adoption of improved millet and sorghum varieties.The study revealed that local farmers have substantial knowledge on climate variabilities and risks and also are aware of some adaptation strategies. However, for wide scale adoption of effective strategies, capacity strengthening appeared a prerequisite.

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