Sustainability of Soil and Water Conservation in Sub-Saharan Africa

Author(s):  
C. Reij ◽  
W. Critchley
Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1985
Author(s):  
Hyacinthe Nyirahabimana ◽  
Alice Turinawe ◽  
Jakob Lederer ◽  
Jeninah Karungi ◽  
Mathew Herrnegger

Agricultural intensification and expansion efforts aimed at feeding increasing populations have led to soil degradation globally. Due to their suitability for resource-constrained farmers, and potential positive impacts on agricultural land improvement, Soil and Water Conservation Practices (SWCPs) are recommended as a solution to soil degradation in Sub Saharan Africa (SSA). However, the adoption rates of SWCPs are low and farmers who adopt them do not adopt on time. There is a lag between the time when farmers first learn about SWCPs and the time of adoption. This study examines the factors influencing adoption lag for Soil and Water Conservation Practices among smallholder farmers in the Sio-Malaba Malakisi River Basin border region of Kenya and Uganda. We utilize data collected from 506 randomly selected households and use the duration analysis model to analyze the data. Results show that the average adoption lag of SWCPs in the study area was about 10 years. Further, reduction in adoption lag is associated with household size, number of accessible markets, access to credit, age of the household head, farm size owned, and tropical livestock units. On the other hand, access to off-farm income and household location in Uganda are associated with increased adoption lag of SWCPs. Participation in social groups, households being male-headed, and education of the household head showed mixed effects on adoption lag, depending on the SWCP of focus. Strengthening farmer social networks and access to credit and markets are recommended as possible interventions to promote the timely adoption of SWCPs.


2021 ◽  
Vol 13 (15) ◽  
pp. 8242
Author(s):  
Godwin Kofi Vondolia ◽  
Håkan Eggert ◽  
Jesper Stage

The fertilizer subsidies reintroduced in various sub-Saharan African countries from 2007 aim to increase agricultural production and assist in the development of fertilizer markets. The present study evaluates the impact of a fertilizer subsidy program among farmers in Ghana who employ highly mechanized irrigation systems. The results indicate that farmers who received fertilizer under the subsidy program used 45% more fertilizer. However, they did not use more weedicide and were likely to reduce investment in soil and water conservation. Thus, the income gains resulting from the subsidy programs were not invested in such non-targeted inputs. Moreover, the program beneficiaries’ reduced investment in soil and water conservation may explain the finding that the subsidy did not improve their productivity. Thus, since fertilizer subsidy programs alone may not improve productivity, it may be necessary to target spending explicitly on complementary inputs such as investing in soil and water conservation.


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