Efficience des techniques de gestion de l’eau et de fertilité des sols sur le rendement du maïs dans les régions semi-arides : cas de la plaine de la Ruzizi (Sud-Kivu, République Démocratique du Congo)

Bagula, Espoir Mukengere; Mapatano, Sylvain; Katcho, Karume; Mushagalusa, Nacigera Gustave

doi:10.4000/vertigo.13922

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…At this level, the primary goal is to mobilize broad agronomic expertise to adapt to altered climatic conditions. This begins with the use of appropriate genetic material better suited to higher temperatures and more effectively utilizing increased photosynthesis and water efficiency, while minimizing the effect of shortened growth cycles (Bernard Seguin B., 2003).Documented studies on adaptation strategies indicate that the use of drought-resistant seeds, adjusting sowing and irrigation dates (Abid et al 2015;Sarr et al, 2015;Ofuoku, 2011), efficient water and fertilizer management (Bagula et al 2013), and crop diversification are among the most favored adaptation methods in agriculture worldwide (Torquebiau,…”

Section: Theoretical Frameworkmentioning

confidence: 99%

Irrigated Agriculture Facing the Challenge of Climate Change: What Adaptation Strategies for Farmers in the Irrigated Perimeters of Môle Saint-Nicolas, Haiti?

Mial,

Bissonnette,

Bourgault

et al. 2024

Preprint

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Môle Saint-Nicolas, like all other communes in the Republic of Haiti, faces increasing climate variability, impacting agricultural production and water resources. Consequently, there is a pressing need for adaptation to these climatic changes. This research aims to showcase the adaptation strategies deployed by farmers to cope with the increasing climate variability. Surveys were conducted through group and individual discussions with a randomly selected cohort of 150 farmers. Two types of analysis were performed: quantitative and qualitative. The quantitative data analysis was conducted using SPSS software. The findings reveal that farmers have perceived changes in rainfall patterns, temperature, wind, and their environment. These changes manifest as irregular rainfall, higher temperatures, prolonged drought periods, violent winds accompanied by rain, premature cessation of rains, and reduced flow from water sources. In response, the most common adaptation strategies developed include selecting new cultivars, early-maturing varieties, crop rotation and diversification, canal dredging, new soil preparation methods, upstream water source protection, and micro-watershed management. The significance of this research lies in its contribution to enhancing farmers' adaptive capacities by alerting stakeholders in the irrigated perimeters about the consequences of climate change, thereby incorporating the real needs of farmers in future projects.

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Section: Theoretical Frameworkmentioning

confidence: 99%

Irrigated Agriculture Facing the Challenge of Climate Change: What Adaptation Strategies for Farmers in the Irrigated Perimeters of Môle Saint-Nicolas, Haiti?

Mial,

Bissonnette,

Bourgault

et al. 2024

Preprint

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“…Crop yield data were collected from 2011 to 2019. Data were obtained from trials of 9 agricultural seasons conducted by Bagula et al [10,46,47] and 100 maize farms surveyed in the Ruzizi Plain for the 2018 growing season. Farms were selected using a simple random sampling method.…”

Section: Crop Model Calibration and Evaluationmentioning

confidence: 99%

Climate Change Effect on Water Use Efficiency under Selected Soil and Water Conservation Practices in the Ruzizi Catchment, Eastern D.R. Congo

Bagula

Majaliwa

Mushagalusa

et al. 2022

Land

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Concerns have been raised on the effectiveness and sustainability of Soil and Water Conservation (SWC) practices as adaptation options to climate change and high intra− and inter−annual rainfall variabilities in eastern Democratic Republic of Congo (DRC). This study was conducted in the Ruzizi Plain, a dryland area, to assess the performance of maize (Zea mays L.) under two Representative Concentration Pathways (RCP 4.5 and 8.5) and two SWC practices (tied ridges and conventional tillage). The AgMIP’s Regional Integrated Assessment (RIA) approach was used to simulate Water Use Efficiency (WUE) under the Cropping System Model−Crop Environment Resource Synthesis (CSM−CERES−Maize) of the Decision Support System for Agro−technology Transfer (DSSAT). The model was calibrated using experimental data from nine cropping seasons (2011–2018) and 100 farms. The model sensitivity was assessed as a function of temperature, water, and SWC practices for the same environments. Initial conditions of crop management practices were used as input data for CSM−CERES−Maize. Current climate data were extracted from AgMERRA datasets corrected with local data for the period of 1980 to 2021. Future climate projections (2022–2099) were obtained after down−scaling the data from the 29 GCMS of CMIP5 and subsetted to five GCMs based on climate regimes. GCMS results were a strong indicator that climate change in this DRC dryland will result in an increase in average annual temperatures for both RCP 4.5 and 8.5, with the highest increase (3.05 °C) under hot/dry conditions for RCP8.5 and the lowest (1.04 °C) under cool/dry conditions for RCP 4.5. All the models selected for five climate regimes for 2022–2099 showed no change in the rainfall trends for RCP 4.5 (p > 0.05). The models projected yield declines of 5–25%, with less yield losses under tied ridges as an adaptation practice. The use of efficient SWC practices could therefore be a promising strategy in reducing potential losses from climate change in drylands of eastern DRC.

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“…This could allow mitigate the unpredictable farming outcomes and strengthen the farmers' food and income security in that part of the world. Bagula et al (2013Bagula et al ( , 2016 recommended the tied ridges and Zaï pits after a series of SWC practices testing in the Ruzizi plain. However, these studies overlooked the variability in slopes as observed in the Ruzizi plain, making the extrapolation to the entire area of those studies' conclusions difficult.…”

Section: Introductionmentioning

confidence: 99%

Water and nutrient balances under selected soil and water conservation practices in semi-arid Ruzizi plain, Eastern Democratic Republic of Congo

Bagula¹,

Majaliwa²,

Mushagalusa³

et al. 2021

Afr. J. Agric. Res.

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Efficience des techniques de gestion de l’eau et de fertilité des sols sur le rendement du maïs dans les régions semi-arides : cas de la plaine de la Ruzizi (Sud-Kivu, République Démocratique du Congo)

Cited by 5 publications

References 5 publications

Irrigated Agriculture Facing the Challenge of Climate Change: What Adaptation Strategies for Farmers in the Irrigated Perimeters of Môle Saint-Nicolas, Haiti?

Irrigated Agriculture Facing the Challenge of Climate Change: What Adaptation Strategies for Farmers in the Irrigated Perimeters of Môle Saint-Nicolas, Haiti?

Climate Change Effect on Water Use Efficiency under Selected Soil and Water Conservation Practices in the Ruzizi Catchment, Eastern D.R. Congo

Water and nutrient balances under selected soil and water conservation practices in semi-arid Ruzizi plain, Eastern Democratic Republic of Congo

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