A cost–benefit analysis of the production system with improved and climate-resilient sorghum varieties in southern Mali

Frontiers in Climate, Год журнала: 2025, Номер 6

Опубликована: Янв. 6, 2025

Given the persistently low adoption rate of improved sorghum varieties over decades, it is relevant to assess whether profitable or not grow these in Mali. Over past years, little evidence has demonstrated profitability analysis as decision-support information regarding varieties. This study used cost-benefit two Improved and Climate-Resilient Sorghum Varieties (ICRSVs), “Soubatimi Tiandougou-coura” compared “Local” ones, using three years average yield data (2017, 2018, 2020) Sikasso region, The objective was perform a consistent through net income, ratio, gross profit margin. farm partial budget framework, sensitivity analysis, stochastic dominance methods. A final sample 31 farmers’ on-farm trials under fertiliser package “100 kg complex cereal 50 urea” per hectare held agronomic package. key findings showed that both were profitable, with 79,661 CFA (123.56 USD) 45,073 (69.91 incomes corresponding 1.54 1.32 CBR, 34 24 percents margins, respectively, while growing “local” an loss 12,113 (18.79 0.91 CBR 10 percent In light results, suggests large dissemination ICRSVs Policy-makers should facilitate implementation outreach programs inform smallholder farmers on ICRSVs’ traits decision support tool for larger adoption.

Язык: Английский

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Integrated assessment of land use/land cover changes and hydrological impacts in the nile river basin: a case study of Rwanda hydro-unity network

Frontiers in Environmental Science, Год журнала: 2025, Номер 13

Опубликована: Март 18, 2025

This study evaluates the impacts of land use and cover (LULC) changes on streamflow dynamics water availability within Rwanda Hydro-Unity Network catchment, part Nile River basin. Utilizing Soil Water Assessment Tool (SWAT) Climatic Balance (CWB) model, we analyze hydrological from 1991 to 2020. The findings reveal a significant increase in surface runoff, yield, evapotranspiration, mainly driven by urban expansion agricultural intensification, while groundwater recharge percolation have declined. Climate variability has also contributed increased evapotranspiration seasonal deficits, exacerbating drought risks. key Findings showed that (1) LULC Changes (1991–2020): Cropland 33.2% 72.0%, Built-up areas expanded 0.9% 2.7% Forest declined sharply 49.9% 11.8%. (2) Hydrological Changes: Surface runoff 144.99 mm 201.73 mm, Total yield rose 304.83 338.25 Groundwater 105.58 88.27 Evapotranspiration 600.39 657.32 mm. (3) Variability Balance: Rising temperatures potential (PET), reducing available long dry season (June–September) most decline balance. (4) Flood Risks Adaptation Strategies: Urbanization flood risks due impervious surfaces, Sustainable solutions, such as reforestation, improved drainage, wetland restoration, are necessary. emphasizes need for integrated management strategies, including sustainable land-use policies, climate adaptation measures, enhanced mitigation practices ensure long-term security Rwanda.

Язык: Английский

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Determinants of market participation and its effect on profit margins among smallholder wheat producing farmers in Rwanda

Discover Agriculture, Год журнала: 2025, Номер 3(1)

Опубликована: Март 26, 2025

Язык: Английский

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Conservation Agriculture for Closing Maize Yield Gap and Enhancing Climate Resilience in Semi-Arid Eastern Rwanda

Farming System, Год журнала: 2025, Номер unknown, С. 100151 - 100151

Опубликована: Март 1, 2025

Язык: Английский

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Revisiting agroecological transitions in Rwanda a decade later: the role of local knowledge in understanding the crop diversity–food security–land degradation nexus

Frontiers in Agronomy, Год журнала: 2025, Номер 7

Опубликована: Апрель 8, 2025

The challenge of achieving food security amidst broken systems, the climate crisis, biodiversity loss, degrading land, and growing social inequity remains a critical development priority in alignment with Vision 2030 agenda. While crop diversification is cornerstone agroecological transitions security, global systems have often overlooked its potential, largely due to insufficient local participation reliance on blanket policies unsuitable for heterogeneous contexts. This article revisits Western Rwanda decade after data collection, assessing enduring relevance knowledge understanding diversity–food security–land degradation nexus. Using systematic knowledge-based approach (AKT5), were collected from 150 smallholder farmers through Paired Catchment Assessment. Findings 1995–2015 period revealed decline or disappearance “low-value” crops, driven by Crop Intensification Program (76%), land shortages (55%), abandonment slow-growing crops (49%). As result, 83% reported insecurity, primarily manifesting as seasonal (51%). Perennial emerged bridging hunger gaps, while reduced diversity forced many rely off-farm sources. original analysis identified seven principles integral nexus: soil health, biodiversity, synergy, economic diversification, values diets, co-creation knowledge, participation. These findings varied significantly status, emphasizing importance context-specific solutions. study also showed that become more dependent sourcing off-farm, produced on-farm supporting an average 6.6 months annually 2015 compared 10.1 1995. underpins need leverage ecological rather than administrative boundaries, ensuring connectivity within fostering equitable trade mechanisms if are be realized. A later, this reflected upon validated recent literature, which validity transitions. advocates stronger integration stakeholder collaboration promote co-design tailored context-appropriate, inclusive, sustainable policy frameworks foster across scales.

Язык: Английский

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Local Observations of Climate Change and Adaptation Responses: A Case Study in the Mountain Region of Burundi-Rwanda

Land, Год журнала: 2023, Номер 12(2), С. 329 - 329

Опубликована: Янв. 25, 2023

Mountain regions and their communities are particularly vulnerable to climate change impacts. However, little is known on the impacts observed adaptation responses used in Burundi’s mountain region if these different those reported contiguous of Rwanda. This paper aims fill knowledge gaps. Semi-structured interviews were conducted with 300 smallholder farmers, 150 northern Burundi southern Farmers both countries negative crops, animals, human health, small differences between driven by main cultivated crops. More strategies than Rwanda, more farmers using multiple strategies. In countries, farmers’ wealth affected food security. Notably, for all groups (poor, average, rich), security was lower Rwanda Burundi. We relate our findings current agricultural intensification policies argue greater involvement local planning using, example, science-with-society approaches.

Язык: Английский

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Impact of chemical fertilizers on diversity and abundance of soil-litter arthropod communities in coffee and banana plantations in southern Rwanda

Current Research in Environmental Sustainability, Год журнала: 2023, Номер 5, С. 100215 - 100215

Опубликована: Янв. 1, 2023

Few studies explored effects of chemical fertilizers on diversity and abundance soillitter arthropods in the tropics. To fill this gap, a study focussed soil-litter selected soil physicochemical properties coffee plantations treated with banana organic mulches southern Rwanda. Each land use was replicated three times. Soil-litter were collected using pitfall traps hand collection. They identified to family level dichotomous keys. Soil have been auger taken laboratory for analysis pH, carbon, total nitrogen, phosphorus, cation exchange capacity. Findings indicated 12,945 individuals distributed into 3 classes, 16 orders, 50 families 92 morphospecies, higher mulches. Collected mainly classified class Insecta, dominated numbers by ants (Hymenoptera: Formicidae), while Coleoptera Hemiptera had more families. However, under acidic compared inorganic The relationships between suggest that respond independently from properties. We recommend further other crop regions Rwanda verify findings study.

Язык: Английский

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Farmer and Field Survey in Cassava-Growing Districts of Rwanda Reveals Key Factors Associated With Cassava Brown Streak Disease Incidence and Cassava Productivity

Frontiers in Sustainable Food Systems, Год журнала: 2021, Номер 5

Опубликована: Дек. 3, 2021

Cassava ( Manihot esculenta Crantz) is a vital crop in Rwanda where it ranks as the third most consumed staple. However, cassava productivity remains below its yield potential due to several constraints, including important viral diseases, such brown streak disease (CBSD). Because various factors can be addressed mitigate impact of essential identify routes virus contamination agrosystems from seed system farmer's practices and knowledge. The present study aimed at (1) assessing current farmers' their knowledge biotic constraints production, (2) determining status CBSD well critical associated with spread through channels, (3) that influence Rwanda. A cross-sectional was carried out May September 2019 13 districts total 130 farmers fields were visited, incidence severity evaluated. detected all cassava-producing districts. highest field recorded Nyanza district (62%; 95% CI = 56–67%) followed by Bugesera (60%; 54–65%), which score 3.0 ± 0.6. RT-PCR revealed presence rate 35.3%. Ugandan predominant (21.5%) although 4% mixed infection 10%. An informal dominant among individual farmers, whereas cooperatives used quality seeds. production found significantly influenced use fertilizer, size land, farming system, disease, type varieties grown p < 0.001). Disease management measures practiced half participants only. Factors 0.05) source cuttings, proximity borders, age cassava, transmission management.

Язык: Английский

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Assessing the Adaptability of Quinoa and Millet in Two Agroecological Zones of Rwanda

Frontiers in Sustainable Food Systems, Год журнала: 2022, Номер 6

Опубликована: Апрель 6, 2022

Quinoa ( Chenopodium quinoa Willd.) and millet species (including Eleusine coracana, Panicum miliaceum , Setaria italica ) are nutritionally valuable seed crops with versatile applications in food production consumption. Both have the potential to provide drought-tolerant, nutritious complementary maize that is predominantly cultivated Rwanda. This study evaluated genotypes assessed their agronomic performance two agroecological zones of Twenty fourteen cultivars were for grain yield, emergence, days heading, flowering, maturity, plant height 2016 2017 Musanze, a highland region (2,254 m above sea level), Kirehe, Eastern lowlands Rwanda (1,478 level). yield ranged from 189 1,855 kg/ha Musanze 140 1,259 Kirehe. Millet 16 1,536 21 159 Mean cultivar was shorter Kirehe (μ = 73 58 cm millets, respectively), than 93 76 respectively). There genotype × environment interaction maturity both years. Across locations, “Titicaca” “Earlybird” earliest maturing varieties, respectively, an average 91 maturity. The results suggest as regional inclusion traditional dryland cropping rotations Rwanda, thereby contributing increased system diversity security.

Язык: Английский

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Estimating Nitrogen Flows and Nitrogen Footprint for Agro-Food System of Rwanda Over the Last Five Decades: Challenges and Measures

Frontiers in Environmental Science, Год журнала: 2021, Номер 9

Опубликована: Ноя. 26, 2021

This study presents the first detailed estimate of Rwanda’s nitrogen (N) flows and N footprint for food (NF ) from 1961 to 2018. Low fertilizer inputs, substandard production techniques, inefficient agricultural management practices are focal causes low crop yields, environmental pollution, insecurity. We therefore assessed budget, use efficiency (NUE), virtual factors (VNFs), soil mining (SNMFs), agro-food systems Rwanda with consideration scenarios fertilized unfertilized farms. The total input croplands increased 14.6 kg ha −1 yr (1960s) 34.1 (2010–2018), while uptake 18 28.2 reflecting a decline NUE 124% 85% (2010–2018). Gaseous losses NH 3 , 2 O, NO 0.45 (NH ), 0.03 (N O), 0.00 (NO) Gg 6.98 0.58 0.10 Due SNMFs were in range 2.99 rice production, cash-crop livestock have greater Rwanda. weighted NF per capita that actual situation 4.0 cap 6.3 would increase 3.5 4.8 under scenario all without application 6.0 8.7 receiving fertilizer. accounted approximately 58% national . present indicates is currently suffering high depletion, insecurity, losses. Therefore, suggesting implementation policies increasing inputs rehabilitating degraded soils organic amendments human animal waste needs be carefully considered

Язык: Английский

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