Status of Rice Cultivation and Breeding in Senegal

Faye, Omar Ndaw; Sock, Mamadou; OH, Jeong-Ho; Kim, Woojae; Lee, Jeong-Ran; Ahn, Eok-Keun; Manneh, Baboucarr; Kang, Kyung-Ho

doi:10.12719/ksia.2020.32.4.381

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…Although, co-cultivating rice and Azolla may be feasible now, it may only be a viable strategy in the intermediate term, if climate change decreases Azolla habitat suitability in rice growing regions. For example, Senegal has two main rice growing areas: the irrigated Senegal River Valley and the rainfed Casamance regions [ 48 ]. Senegal is likely a candidate for Azolla -rice farming because Azolla grows natively in their water bodies [ 49 ], Senegal highly depends on rice imports, and acquiring fertilizer is a major constraint for rice farmers [ 50 ].…”

Section: Discussionmentioning

confidence: 99%

Mapping current and future habitat suitability of Azolla spp., a biofertilizer for small-scale rice farming in Africa

Ocloo,

Vazquez-Prokopec,

Civitello

2023

PLoS ONE

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How do we feed the expanding human population without excessive resource depletion or environmental degradation? Recycling and recapturing nutrients could alleviate these challenges, especially if these strategies are robust to climate change. Co-cultivating rice with Azolla spp. in Asia has demonstrated high yields with reduced fertilizer inputs because Azolla fixes atmospheric nitrogen, limits nitrogen volatilization, recaptures and releases other nutrients, and suppresses weeds. While Azolla is distributed in Africa, this approach has not been widely implemented in African rice-farming. Characterizing the suitability of Azolla is critical in evaluating the potential for Azolla-rice in Africa. To do so, we synthesized 189 field and greenhouse studies from around the world that quantified temperature-dependent growth of A. pinnata and A. filiculoides and developed present and future climate suitability maps at the continental scale using mean temperatures under two Representative Concentration Pathways. Currently, most of Africa is suitable for Azolla with slight differences in regional suitability for each species. We project little change in the continent-wide suitability for both species, but anticipate a regional decline, particularly for A. filiculoides in the Sahel. Collaborating with farmers to validate these projections, evaluate the costs and benefits of Azolla-rice, and facilitate adoption of viable strategies can facilitate equitable food systems that also empower African farmers.

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Section: Discussionmentioning

confidence: 99%

Mapping current and future habitat suitability of Azolla spp., a biofertilizer for small-scale rice farming in Africa

Ocloo,

Vazquez-Prokopec,

Civitello

2023

PLoS ONE

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From diversity to uniformity: comparing nutritional transition of food consumption in four regions in Senegal

Owolodun,

Gmür,

Felber

et al. 2024

Food, Culture & Society

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Assessing climate resilience in rice production: measuring the impact of the Millennium Challenge Corporation’s IWRM scheme in the Senegal River Valley using remote sensing and machine learning

Fionnagáin,

Geever,

O’Farrell

et al. 2024

Environ. Res. Lett.

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Satellite remote sensing and machine learning can be combined to develop methods for measuring the impacts of climate change on biomass and agricultural systems. From 2015 to 2023, we applied this approach in a critical earth observation-based evaluation of the Irrigation and Water Resources Management component of the Millennium Challenge Corporation's Senegal Compact. This project, funded by the United States Agency for International Development (USAID), was implemented in the Senegal River Valley from 2010 to 2015. Utilising these techniques, we successfully mapped rice cultivation areas, deciphered cropping practices, and analysed irrigation systems responses to different climatic conditions. A marked increase in cultivated rice area was found particularly in regions targeted by the project intervention. This is despite prolonged drought conditions which underscores a significant climate adaptation benefit from these irrigation works. We observed a notable dip in rice cultivation area in 2020, possibly due to the COVID-19 pandemic, followed by a recovery to pre-pandemic levels in 2023, likely aided by previously funded USAID's socio-economic resilience programmes in the region. Economic analysis of increased rice yields in the region translates to approximately US\$ 61.2 million in market value since 2015, highlighting the economic returns from the project investment. Both the remote sensing data and ground audits identify issues regarding post-project deterioration of irrigation infrastructure, emphasising the need for long-term maintenance of irrigation infrastructure to support climate adaptation benefits arising from irrigation. With a focus on crop irrigation, our findings stress the critical role of climate adaptation interventions for maintaining agricultural productivity in the face of adverse climate shocks. It further highlights the necessity of continuous investment and maintenance for ensuring climate resilient agrifood systems.

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Status of Rice Cultivation and Breeding in Senegal

Cited by 3 publications

References 11 publications

Mapping current and future habitat suitability of Azolla spp., a biofertilizer for small-scale rice farming in Africa

Mapping current and future habitat suitability of Azolla spp., a biofertilizer for small-scale rice farming in Africa

From diversity to uniformity: comparing nutritional transition of food consumption in four regions in Senegal

Assessing climate resilience in rice production: measuring the impact of the Millennium Challenge Corporation’s IWRM scheme in the Senegal River Valley using remote sensing and machine learning

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