[ Pratiques paysannes et fertilité des sols à vocation maraichers dans la ville de Korhogo (Nord de la Côte d’Ivoire) ]
Volume 52, Issue 1, December 2020, Pages 93–102
Krogba Yves NANGAH1, Kouakou Yao Kouman Nestor2, and Kouassi Aka Mohamed Urbain3
1 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Abidjan, Côte d'Ivoire
2 UFR Sciences de la Terre et des Ressources Minières, Département de Pédologie appliquée, Université Felix Houphouet Boigny, Abidjan, Côte d’Ivoire
3 UFR Sciences biologiques, Département Géosciences, Université Peleforo Gon Coulibaly, Korhogo, Côte d’Ivoire
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Urban agriculture is a response to food security in cities and it improves people's income. This agriculture is practiced on undeveloped land because of high land pressure. The aim of this work is to characterize the market gardening of the city of Korhogo. This study was carried out by means of a survey in order to know the socio-demographic profile of the producers and to characterize the market gardening operations of the sites studied. Soil characterization was carried out in order to determine soil physicochemical parameters. Surveys have shown that market gardening in the city of Korhogo is a predominantly female activity (98%). The use of mineral and organic fertilizers and pesticides is almost systematic on the plots and is intense on small ones. The analysis of the physicochemical parameters showed soils devoted to vegetable are predominantly sandy. They are low acid soils with pH ranging from 5.1 to 5.8. Nitrogen, organic carbon contents and exchangeable bases levels are very low. Only available phosphorus varying from 51 to 64 mg.kg-1had acceptable levels in these soils. The sand richness of the soil therefore favours the leaching of mineral elements, which leads to a decrease in soil fertility. This phenomenon leading farmers to disproportionately use chemical and organic fertilizers, could have an impact on market garden products’ quality.
Author Keywords: Market gardening, Fertility, Agro-system, Soil, Korhogo.
Volume 52, Issue 1, December 2020, Pages 93–102
Krogba Yves NANGAH1, Kouakou Yao Kouman Nestor2, and Kouassi Aka Mohamed Urbain3
1 Laboratoire Géosciences et Environnement, Université Nangui Abrogoua, Abidjan, Côte d'Ivoire
2 UFR Sciences de la Terre et des Ressources Minières, Département de Pédologie appliquée, Université Felix Houphouet Boigny, Abidjan, Côte d’Ivoire
3 UFR Sciences biologiques, Département Géosciences, Université Peleforo Gon Coulibaly, Korhogo, Côte d’Ivoire
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Urban agriculture is a response to food security in cities and it improves people's income. This agriculture is practiced on undeveloped land because of high land pressure. The aim of this work is to characterize the market gardening of the city of Korhogo. This study was carried out by means of a survey in order to know the socio-demographic profile of the producers and to characterize the market gardening operations of the sites studied. Soil characterization was carried out in order to determine soil physicochemical parameters. Surveys have shown that market gardening in the city of Korhogo is a predominantly female activity (98%). The use of mineral and organic fertilizers and pesticides is almost systematic on the plots and is intense on small ones. The analysis of the physicochemical parameters showed soils devoted to vegetable are predominantly sandy. They are low acid soils with pH ranging from 5.1 to 5.8. Nitrogen, organic carbon contents and exchangeable bases levels are very low. Only available phosphorus varying from 51 to 64 mg.kg-1had acceptable levels in these soils. The sand richness of the soil therefore favours the leaching of mineral elements, which leads to a decrease in soil fertility. This phenomenon leading farmers to disproportionately use chemical and organic fertilizers, could have an impact on market garden products’ quality.
Author Keywords: Market gardening, Fertility, Agro-system, Soil, Korhogo.
Abstract: (french)
L’agriculture urbaine est une réponse à l’insécurité alimentaire dans les villes et elle permet d’améliorer le revenu des populations. Elle se pratique sur des espaces non aménagés de la ville et des alentours du fait de la forte pression foncière. L’objectif de ce travail est de caractériser les agrosystèmes maraîchers de la ville de Korhogo en vue de ressortir les contraintes. L’étude a été réalisée au moyen d’une enquête auprès de 53 maraîchers. Un échantillon de sol a été prélevé de chaque site pour en déterminer les paramètres physico-chimiques. Les enquêtes ont montré que le maraîchage est une activité principalement féminine (98%). L’utilisation des engrais et des pesticides est quasi systématique sur les parcelles et se fait de façon intense sur les petites parcelles. Les sols maraichers sont à dominance sableuses. Ce sont des sols acides à peu acide avec des pH variants entre 5,1 et 5,8. Les teneurs en azote, en carbone organique et les bases échangeables ont été très faibles. Seules les teneurs en phosphore assimilable ont été acceptables dans ces sols avec des teneurs oxillants entre 51 et 64 mg.kg-1. La prédominance de sable des sols favorise le départ des éléments minéraux par lixiviation, conduisant à une baisse de la fertilité. Ce phénomène qui contraint les agriculteurs à utiliser les engrais chimiques et organiques de façon disproportionnés pourrait avoir des conséquences sur la qualité des produits maraichers.
Author Keywords: Maraîcher, fertilité, agrosystème, sol, Korhogo.
How to Cite this Article
Krogba Yves NANGAH, Kouakou Yao Kouman Nestor, and Kouassi Aka Mohamed Urbain, “Farmers practices and soil fertility for vocation of markets in the city of Korhogo (North of Côte d’Ivoire),” International Journal of Innovation and Scientific Research, vol. 52, no. 1, pp. 93–102, December 2020.
