Evaluating conservation agriculture for small-scale farmers in Sub-Saharan Africa and South Asia

2014 ◽  
Vol 187 ◽  
pp. 1-10 ◽  
Author(s):  
James R. Stevenson ◽  
Rachid Serraj ◽  
Kenneth G. Cassman
2022 ◽  
pp. 371-381
Author(s):  
Neil Miller ◽  
Putso Nyathi ◽  
Jean Twilingiyumukiza

Abstract In order for Conservation Agriculture (CA) to reach and impact small-scale farmers in Sub-Saharan Africa (SSA), CA technologies need to be adapted to suit the diversity of agroecological zones and cultures present on the continent. Training materials for CA promotion need to be similarly customizable to help extension staff and farmers develop their own, context-appropriate solutions from among the many possible CA approaches. From 2015 through 2018, a diverse set of farmer-level training materials for CA and complementary technologies was developed and field-tested by Canadian Foodgrains Bank partners. Together with a participatory, adaptive training methodology, these materials have enhanced the effectiveness of CA promotion, and they have been made available for copyright-free download in English, French, Kiswahili, Portuguese and Amharic (http://caguide.act-africa.org/, accessed 6 August 2021). This paper describes the process of developing these materials as well as challenges and constraints to their utilization.


2017 ◽  
Vol 24 (1) ◽  
pp. 406 ◽  
Author(s):  
Elizabeth Harrison ◽  
Anna Mdee

Abstract In the Uluguru Mountains of Tanzania, an expansion in informal hosepipe irrigation by small-scale farmers has enabled the development of horticulture, and resulted in improvements in farmers' livelihoods. This has largely taken place independently of external support, and can be seen as an example of the 'private' irrigation that is increasingly viewed as important for sub-Saharan Africa. However, these activities are seen by representatives of government and some donors as the cause of environmental degradation and water shortages downstream, especially in the nearby city of Morogoro. As a result, there have been attempts to evict the farmers from the mountain. Negative narratives persist and the farmers on the mountainside are portrayed as a problem to be 'solved.' This article explores these tensions, contributing to debates about the formalization of water management arrangements and the place of the state in regulating and adjudicating rights to access water. We argue that a focus on legality and formalization serves to obscure the political nature of competing claims on resources that the case illustrates. Keywords: irrigation; Tanzania; ethnography; political ecology; water


2014 ◽  
Vol 70 ◽  
pp. 4-16 ◽  
Author(s):  
Egil R. Orskov ◽  
Kenneth Yongabi Anchang ◽  
Madhu Subedi ◽  
Jo Smith

2012 ◽  
Vol 132 ◽  
pp. 175-184 ◽  
Author(s):  
Diego Valbuena ◽  
Olaf Erenstein ◽  
Sabine Homann-Kee Tui ◽  
Tahirou Abdoulaye ◽  
Lieven Claessens ◽  
...  

2015 ◽  
Vol 14 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Satoru Muranaka ◽  
Mariko Shono ◽  
Takao Myoda ◽  
Junko Takeuchi ◽  
Jorge Franco ◽  
...  

Cowpea is traditionally important as an affordable source of protein and minerals and of cash income in sub-Saharan Africa, especially for small-scale farmers who have limited options for food and cash crops. The development and deployment of cowpea varieties with improved nutrition and quality that meet the needs of farmers and consumers should enhance cowpea consumption and production in the region. We have identified genetic diversity in various grain quality-related traits of cowpea and relationships among the traits. Wide genetic variation and strong correlations among crude protein, Fe and Zn contents suggest the possibility of improving the concentrations of these nutritional factors simultaneously. Low associations among physical and nutritional properties of grain indicate the possibility of introgressing favorable traits utilizing identified genetic resources. However, narrow variation in amino acid (AA) composition suggests a lesser possibility of improving the contents of specific AAs in cowpea, but it gave a reliable nitrogen-to-protein conversion factor of 5.45 for the estimation of crude protein content. Several improved breeding lines were identified with low concentrations of flatulence-causing oligosaccharides and various favorable agronomic traits and nutrient contents. TVu-12802 had the highest contents of crude protein and high contents of micronutrients, with a low ratio of phytic acid to Fe and Zn contents.


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