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Fatondji, D.Martius, C.Zougmoré, Robert B.Vlek, Paul L.G.Bielders, Charles L.Koala, Saidou[Decomposition of organic amendment and nutrient release under the zai technique in the Sahel]Decomposition of organic amendment and nutrient release under the zai technique in the Sahel
Fatondji, D.Martius, C.Vlek, Paul L.G.Bielders, Charles L.Bationo, B. André[Effect of Zai soil and water conservation technique on water balance and the fate of nitrate from organic amendments applied: a case of degraded crusted soils in Niger]Effect of Zai soil and water conservation technique on water balance and the fate of nitrate from organic amendments applied: a case of degraded crusted soils in Niger

The aim of this article is to analyze the impact of development interventions on the population of three Nigerien villages that differ in terms of their agro-ecological, social and economic characteristics. This is performed by simulating the behavior of individuals in an agent-based modeling fra...


Saqalli, M.Gerard, Bruno G.Bielders, Charles L.Defourny, Pierre[Targeting rural development interventions: Empirical agent-based modeling in Nigerien villages]Targeting rural development interventions: Empirical agent-based modeling in Nigerien villages

Due to increased population pressure and limited availability of fertile land, farmers on desert fringes increasingly rely on marginal land for agricultural production, which they have learned to rehabilitate with different technologies for soils and water conservation. One such method is the ind...


Fatondji, D.Martius, C.Bielders, Charles L.Vlek, Paul L.G.Bationo, B. AndréGerard, Bruno G.[Effect of planting technique and amendment type on pearl millet yield, nutrient uptake, and water use on degraded land in Niger]Effect of planting technique and amendment type on pearl millet yield, nutrient uptake, and water use on degraded land in Niger

Development issues in developing countries belong to complex situations where society and environment are intricate. However, such sites lack the necessary amount of reliable, checkable data and information, while these very constraining factors determine the populations' evolutions, such as vill...


Saqalli, M.Gerard, Bruno G.Bielders, Charles L.Defourny, Pierre[Simulating rural environmentally and socio-economically constrained multi-activity and multi-decision societies in a low-data context: A challenge through empirical agent-based modeling]Simulating rural environmentally and socio-economically constrained multi-activity and multi-decision societies in a low-data context: A challenge through empirical agent-based modeling

This article presents the results of a methodology based on an extensive sociological fieldwork in three different sites settled along a gradient of aridity in Nigerien Sahel. This fieldwork led to build a set of rules for the behaviour of individuals in non-pastoralist villages. We implemented t...


Saqalli, M.Gerard, Bruno G.Bielders, Charles L.Defourny, Pierre[Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach]Testing the impact of social forces on the evolution of Sahelian farming systems: a combined agent-based modeling and anthropological approach

Soil fertility and climate risks are hampering crop production in the Sahelian region. Because experiments with only a few fertility management options on a limited number of sites and years cannot fully capture the complex and highly non-linear soil–climate–crop interactions, crop growth simula...


Akponikpè, Pierre B.I.Gerard, Bruno G.Michels, K.Bielders, Charles L.[Use of the APSIM model in long term simulation to support decision making regarding nitrogen management for pearl millet in the Sahel]Use of the APSIM model in long term simulation to support decision making regarding nitrogen management for pearl millet in the Sahel

The rainfall pattern in the Sahel is very erratic with a high spatial variability. We tested the often reported hypothesis that the dispersion of farmers’ fields around the village territory helps mitigate agro-climatic risk by increasing yield stability from year to year. We also wished to evalu...


Akponikpè, Pierre B.I.Minet, J.Gerard, Bruno G.Defourny, PierreBielders, Charles L.[Spatial fields’ dispersion as a farmer strategy to reduce agro-climatic risk at the household level in pearl millet-based systems in the Sahel: A modeling perspective]Spatial fields’ dispersion as a farmer strategy to reduce agro-climatic risk at the household level in pearl millet-based systems in the Sahel: A modeling perspective

Throughout much of Sub-Saharan Africa (SSA), maize production is characterized by low productivity due to the scarce availability and use of external inputs and recurrent droughts exacerbated by climate variability. Within the integrated soil fertility management (ISFM) framework, there is thus a...


Tovihoudji, Pierre GAkponikpè, Pierre B.I.Adjogboto, AndreDjenontin, Jonas A.Agbossou, Euloge K.Bielders, Charles L.[Combining hill-placed manure and mineral fertilizer enhances maize productivity and profitability in northern Benin]Combining hill-placed manure and mineral fertilizer enhances maize productivity and profitability in northern Benin

The effects of 4 years grazing by sheep and goats at various stocking rates on soil surface features, bulk density, organic C, N and P contents and pH were investigated in Sadore, Niger. Studies were also conducted in a fallow subjected to 9 years of intensive grazing. Although grazing reduced (P...


Hiernaux, Pierre H.Y.Bielders, Charles L.Valentin, ChristianBationo, B. AndréFernández Rivera, S.[Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands]Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands

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