Armand W. Koné

Armand W. Koné
Nangui Abrogoua University, Abidjan · Natural Sciences

PhD
Lecturer, Agroecology

About

40
Publications
16,624
Reads
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550
Citations
Citations since 2016
28 Research Items
489 Citations
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2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Introduction
Armand Koné currently works as an Associate Professor at the Nangui Abrogoua University, Abidjan. Armand does research in Agroecology. He currently works on the projects IE-PRODIGE (Ecological intensification for sustainable yam production), ERAfrica-ConneSSA (Connecting knowledge, scales and actors; An integrated framework for adaptive organic resource management, targeting soil aggradation and agroecosystems’ resilience in SSA), CaSA (Soil carbon for a sustainable agriculture in africa), SoCA (Beyond climate, Soil carbon sequestration to sustain tropical family farming) and PARFAO -AUF/IRD (Promouvoir l'agroécologie par la recherche et la formation en Afrique de l'Ouest).
Additional affiliations
July 2009 - September 2015
University of Abobo-Adjamé
Position
  • Lecturer
July 2009 - December 2015
Nangui Abrogoua University, Abidjan
Position
  • Researcher
July 2009 - March 2020
Nangui Abrogoua University, Abidjan
Position
  • Lecturer

Publications

Publications (40)
Article
Full-text available
In tropical savannas where soils are generally sandy and nutrient poor, organic farming associated with enhanced soil biological activity may result in increased nutrient availability. Therefore, legumes have been introduced in the humid savanna zone of Côte d’Ivoire, owing to their ability to fix atmospheric N and to continually supply soil with g...
Article
Conversion of natural forest to anthropogenic land use systems (LUS) often leads to considerable loss of carbon, however, proper management of these LUS may reverse the trend. A study was conducted in a semi-deciduous forest zone of Côte d’Ivoire to assess soil microbial functioning and soil organic carbon (SOC) stocks in varying tree stands, and t...
Article
Full-text available
Nutrient cycling has been widely studied in tree plantations. However, studies on the observed negative changes relative to natural vegetations and how these could be capitalized toward setting up ecofriendly agroecosystems are rare. This study was conducted in Central-West Côte d'Ivoire to establish the changes in carbon and macronutrient cycling...
Article
Plant invasion may have significant ecological and socio-economic impacts across agroecologies. Chromolaena odorata (Asteraceae) is one of the world’s most invasive plants albeit it is considered a suitable fallow plant in West Africa. However, its impacts on soil biological processes are poorly understood. This study was conducted in intermingled...
Article
Full-text available
Identifying and scaling up agricultural practices that promote atmospheric carbon transfer into the soil are keys to tackle climate change. A study was carried out in Central Côte d’Ivoire (West Africa) to assess soil organic carbon (SOC) storage and its edaphic constraints under diverse fallow management options. Trials were conducted at two locat...
Chapter
East Africa remains one of the most severely affected regions impacted by food insecurity with an increasing number of undernourished people (NEPAD 2013). The sustainable management of agricultural land and water resources is recognized as essential to achieve global food security. Almost 70% of the population of East Africa rely on agriculture (NE...
Article
Full-text available
L’agroforesterie à base d’espèces d’arbustes natives pourrait être une option prometteuse la production agricole dans les zones de savanes d’Afrique. Cependant, l’impact de ces arbustes sur la matière organique du sol a été peu étudié, surtout en savane guinéenne. Cette étude explore l’influence de trois espèces d’arbustes natives et dominantes de...
Article
Full-text available
Cette étude a été conduite en zone de savane humide de Côte d’Ivoire pour évaluer la qualité et la vitesse de décomposition des litières de feuilles de trois espèces d’arbustes dominantes: Crossopteryx febrifuga, Terminalia schimperiana et Piliostigma thonningii et la contribution des termites dans ce processus. La vitesse de décomposition a été su...
Article
Full-text available
Earthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provid...
Article
Full-text available
L’évaluation de la biodiversité et la compréhension des facteurs qui déterminent la distribution des espèces constituent un préalable à l’optimisation des services écosystémiques du sol. Cependant, la diversité des espèces indigènes de champignons mycorhiziens à arbuscules (CMA) dans les zones de transition forêt-savane et de savane d’Afrique de l’...
Poster
Full-text available
L'influence des espèces d'arbustes dominantes de la zone de transition forêt-savane au centre de la Côte d'Ivoire sur le stock de carbone organique et la fertilité du sol a été évalué dans la perspective d'une utilisation en agroforesterie. Trois espèces ont été étudiées, dont Piliostigma thonningii (Fabaceae), Crossopteryx febrifuga (Rubiaceae) et...
Conference Paper
Full-text available
Perturbation of terrestrial ecosystems often leads to plant invasion, with consequences on soil microbial functioning. Although the pan-tropical invasive Chromolaena odorata (Asteraceae) is increasingly colonizing agricultural lands in West and Central Africa, its impacts on soil microorganisms, particularly fungi remain poorly known. This study wa...
Article
Full-text available
Soil organisms, including earthworms, are a key component of terrestrial ecosystems. However, little is known about their diversity, their distribution, and the threats affecting them. We compiled a global dataset of sampled earthworm communities from 6928 sites in 57 countries as a basis for predicting patterns in earthworm diversity, abundance, a...
Data
This PDF file includes: Materials and Methods Supplementary Text Figs. S1 to S6 Tables S1 to S4 References
Article
Full-text available
Integrated soil fertility management options are being promoted as ways of adapting agricultural systems to sustain yields on highly degraded and poor soils encountered throughout West Africa. The efficiency of these practices may be affected by high variability and uncertainty associated with seasonal rainfall, especially for areas such as Côte d’...
Poster
Full-text available
The use of crop models is motivated by the prediction of crop production under climate change and for the evaluation of climate risk adaptation strategies. Therefore, in the present study the performance of DSSAT 4.6 was evaluated in a cropping system involving integrated soil fertility management options that are being promoted as ways of adapting...
Article
Full-text available
Biomass burning has links with a number of global concerns including soil health, food security and climate change. In central Côte d'Ivoire (West Africa), we conducted a field study to compare nutrient losses, soil fertility and yam yield in slash-and-burn versus slash-and-mulch agriculture. Trials involved five sites established in the dominant C...
Article
African humid savannas are highly productive ecosystems, despite very low soil fertility, where grasses and trees coexist. Earlier results showed that some perennial grass species are capable of biological nitrification inhibition (BNI) while trees likely influence differently on nitrogen cycling. Here we assessed the impact of the dominant grass a...
Article
Full-text available
Animal wastes may be promoted as an alternative to mineral fertilizers that remain unaffordable to the overwhelming part of smallholder farmers in Sub-saharan Africa. However for an efficient use, mechanisms that underly their impact on crops should be well understood. This study was conducted in mesocosm to evaluate impacts of two ways of composte...
Article
Full-text available
This paper deals with reclamation of marginal savannah lands in central Côte d’Ivoire. It aimed at assessing legume-derived nutrient use efficiencies (NUE) by maize and quantifying the importance of these legumes as nutrient source relative to inorganic fertilizers. Experimentations included eight treatments in a RCB design (n=3): four herbaceous l...
Article
Full-text available
Poultry litter is increasingly used as organic amendment in market gardening in Côte d’Ivoire. To know about the sustainability of this practice, its impacts on soil quality should be known. This study aimed at assessing the effect on soil fertility of composted poultry litter addition for 16 years following two distinct ways, and identifying soil...
Article
Natural ecosystem conversion to agriculture is known to alter soil carbon dynamic. Following such conversion in many tropical areas, land undergoes fallow-cropping cycles where fallows are invaded by the pantropical weed Chromoleana odorata. This study was undertaken in the forest-savanna interface area of Côte d’Ivoire to evaluate the impact of th...
Article
Full-text available
Despite the beneficial effects of legumes on soil fertiliy, their adoption by farmers remains low due to the extra labour entailed. Lifting this constraint is of paramount importance in sustainable agriculture. This issue was dealt with in the present study which was carried out in central Côte d’Ivoire through assessing the response of soil (chemi...
Article
Full-text available
Advocated organic matter (OM) supply to agricultural soil should depend on soil properties, instead of applying blank recommendation (12 t ha-1). Two lowlands under continuous rice-rice cropping in the centre of Côte d’Ivoire were surveyed in 2013 considering 31 farmer rice fields in two locations: M’bé and Lokakpli. In each locality, 93 soil sampl...
Poster
Full-text available
This poster deals with the carbon footprint of agriculture in a humid savanna of West Africa. Specifically, it reports on the agronomic and environmental impact of the pantropical invasive weed Chromolaena odorata (Asteraceae).
Poster
Full-text available
Carbone des Sols pour une agriculture durable en Afrique Un réseau né d'une collaboration entre chercheurs africains et européens convaincus de la nécessité de considérer le carbone du sol. L'objectif du réseau est de contribuer à une meilleure prise en considération du carbone des sols pour une agriculture durable en Afrique.  Quantifier la capac...
Article
Full-text available
Full-sun cocoa farming is currently the most widespread cocoa cultivation system in humid and sub-humid Cote d’Ivoire. Higher short-term yields from increasing surfaces under cultivation in this farming system have contributed to the country being ranked as top cocoa producer in the world. However the negative consequences including biodiversity lo...
Article
Full-text available
Les jachères naturelles à Chromolaena odorata ont un effet améliorant sur la fertilité du sol et sont bien intégrées dans les systèmes de production agricole à faibles intrants en Afrique de l’Ouest et du Centre. Dans le contexte du raccourcissement de la durée des jachères en Côte d’Ivoire, la question de l’opportunité de remplacer C. odorata par...
Article
Full-text available
In the buffer zone of the Lamto Reserve, a protected area located in the forest-savannah transitional zone in central Ivory Coast, the exotic shrub Chromolaena odorata has invaded abandoned fields and degraded forests. As a result, they have turned into thickets that are used by local farmers as natural fallows to enhance soil fertility for food pr...
Article
Full-text available
This paper attempts to provide a new perception of the weed Chromolaena odorata (Asteraceae) which is considered as a plague in agriculture or as a soil fertility indicator. The study was conducted in the forest-savanna transition zone of Côte d’Ivoire and aimed to compare soil biological activity and plant nutrient availability under three well-re...
Article
Full-text available
Enzymatic activities play a key role in the biochemical functioning of soils. As a consequence, they have been proposed as indicators of soil quality. This study was conducted at the Oumé benchmark site (Central-West, Côte d'Ivoire), and aimed at measuring the enzymatic activities involved in the phosphorus (acid phosphatase and alkaline phosphatas...
Poster
Full-text available
This poster deals with the promotion of the soil biological status as a mean to reclaim degraded soils. After a short period of time (10 months), this was achieved to a certain extent through the use of specific plant types such as legumes in a semi-deciduous forest zone of Côte d'Ivoire, West Africa.
Thesis
Full-text available
La mise au point de systèmes de culture à base de légumineuses est une alternative à la dégradation des sols et un moyen de valoriser les sols marginaux. Cette étude a été réalisée dans le centre de la Côte d’Ivoire en vue d’évaluer l’impact de différentes espèces de légumineuses sur la qualité des sols des savanes marginales et d’identifier les pl...
Article
Full-text available
The aim of this study, which was conducted in a humid savannah zone of central Côte d’Ivoire, was to examine changes in the quality of soil cultivated with herbaceous legume cover crops as a function of initial soil characteristics. Mucuna pruriens var utilis and Pueraria phaseoloides were used in a two side-by-side location experiment: a shrubby s...
Article
Full-text available
Studying the impact of farming systems on soil status is essential in determining the most relevant for a given agroecological zone. Atrial was conducted in a West Africa humid savanna, aiming at assessing the short-term effects of farming systems on soil (0-10 cm) organic carbon (SOC) content and some soil microbiological properties. A randomized...

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