Associations culturales à base d\'hévéa : bilan de 20 années d\'expérimentations en Côte d\'Ivoire. Partie 1 : Comportement végétatif

Keli, JZ; Omont, Hubert; Assiri, AA; Boko, KA; Abouayebe, S; Dea, B. G.; Doumbia, Amadou

doi:10.4314/aga.v17i1.1656

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Anguédédou and Tiassalé, being located in southern Côte d'Ivoire, are the towns that have older plantations with larger surface areas. These results are in agreement with those of Kéli et al (2005) who claim that the first rubber treeplantations were created in southeastern Côte d'Ivoire. According to Koulibaly (2014), rubber tree cultivation, which was only practiced in southern Côte d'Ivoire, has spread in recent decades to the east, center, center-west and north-west, areas formerly qualified as marginal.…”

Section: Characteristics Of the Plantations Visitedsupporting

confidence: 93%

Assessment of Tapping Quality in Rubber Tree Cultivation in Cote Divoire: Case of Yamoussoukro, Tiassale and Anguededou Plantations

Francis¹,

Junias²,

Charlotte³

et al. 2022

IJAR

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Rubber tree cultivation is booming in Cote dIvoire, making the country rank 1stin Africa. However, plantations are destroyed prematurely due to poor tapping qualities. In order to improve tapping quality and by extension rubber yield, a study was conducted in Cote dIvoire in the towns of Yamoussoukro, Tiassale and Anguededou. This study was conducted on the basis of a survey on the characteristics of the plantations and the tappers of 23 plantations, followed by a tapping quality check. The results showed that tapping commencement of plantations was later in Yamoussoukro (9.2 years) than in Tiassale (6.7 years) and Anguededou (6.8 years). Furthermore, the Yamoussoukro plantations were younger and smaller (1 to 4 years of latex harvesting and 2 ha on average) compared to those of Tiassale and Anguededou (1 to 12 years of latex harvesting and 10 ha on average). The sociological characteristics of tappers showed that they are only men, most of whom have been trained in tapping techniques (91% of tappers). It appears from this study that tapping quality was poor in Anguededou and good in Tiassale and Yamoussoukro. Finally, the correlation analyses showed that tapping quality was not related to tappers but rather to theirtapping knives. The tappers must therefore use a good tapping knife for tapping and perform the tapping in accordance with established tapping standards.

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Section: Characteristics Of the Plantations Visitedsupporting

confidence: 93%

Assessment of Tapping Quality in Rubber Tree Cultivation in Cote Divoire: Case of Yamoussoukro, Tiassale and Anguededou Plantations

Francis¹,

Junias²,

Charlotte³

et al. 2022

IJAR

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“…Cette performance a été réalisée aux dépends des réserves forestières qui, par leurs apports en litière, constituaient une forte ressource minérale. Malheureusement, la dégradation des réserves forestières rendant impossible le modèle cultural extensif et itinérant sur défriche forestière, la culture du cacaoyer est restée majoritairement traditionnelle, caractérisée par le vieillissement des vergers et un faible recours aux engrais et pesticides (Kéli et Assiri, 2001 ;Assiri et al, 2012). A cela, diverses autres contraintes ont une forte emprise sur la culture du cacao.…”

Section: Introductionunclassified

Distribution de l'aluminium échangeable et total dans les sols des agrosystèmes à base de Cacaoyer (<i>Theobroma cacao,/i> L.) dans les régions du centre-ouest de la Côte d'Ivoire

Kouassi,

Brahima,

Bolou-Bi

et al. 2024

Rev. Afr. Environ. Agric.

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Description du sujet. Dans le souci de prévenir les processus d’acidification des sols en cacaoculture, une étude a été menée dans le Centre-Ouest de la Côte d’Ivoire.Objectif. L’objectif est d’évaluer l’état actuel de la toxicité aluminique des sols dans deux agrosystèmes à base de cacaoyer, leurs interactions avec certaines propriétés chimiques des sols.Méthodes. Pour l’atteindre de cet objectif, des sols dans deux agrosystèmes à base de cacaoyer à Divo et Oumé ont fait l’objet d’une prospection pédologique et de prélèvements d'échantillons d’horizons le long d’une toposéquence. Des analyses chimiques classiques de teneurs en aluminium et certains métaux de ces échantillons ont été réalisées en laboratoire.Résultats. Les résultats obtenus ont montré que les différents sols étudiés, quel que soit la position topographique, ne présentent pas de toxicité aluminique. En effet, les indices de toxicité mis en évidence selon la méthode de Kamprath ont des valeurs inférieures à 1 %, largement inférieures à la valeur seuil tolérable de 10 % pour la cacaoculture. Cette absence de toxicité aluminique est la conséquence du statut acido-basique des sols, pH variant de 4,8 à 6,8. Les teneurs en Al échangeable des sols étudiés sont alors très faibles (0,01 cmol+ kg-1 à 1,10 cmol+ kg-1). La présence d’Al échangeable n’a indiqué aucune influence sur les oligo-éléments (Cu, Zn, Mn) révélant que les sols des localités étudiées sont encore très favorables à la cacaoculture.Conclusion. La présence d’Al échangeable n’a indiqué aucune influence sur les oligo-éléments (Cu, Zn, Mn) révélant que les sols des localités étudiées sont encore très favorables à la cacaoculture. Objective. The objective is to evaluate the current state of aluminum toxicity of soils in two cocoa-based agrosystems, their interactions with certain chemical properties of the soils. Methods. To achieve this objective, soils in two cacoa-based agrosystems in Divo and Oumé were the subject of a pedological prospection and horizon sampling along a toposequence. Classic chemical analyzes of the aluminum and certain metal contents of these samples were carried out in the laboratory. Results. The results obtained showed that the different soils studied, whatever the topographical position, do not present aluminum toxicity. Indeed, the toxicity indices highlighted using the Kamprath method have values less than 1%, well below the tolerable threshold value of 10% for cocoa farming. This absence of aluminum toxicity is the consequence of the acid-base status of the soils, pH varying from 4.8 to 6.8. The exchangeable Al contents of the soils studied are then very low (0.01 cmol+ kg-1 to 1.10 cmol+ kg-1). The presence of exchangeable Al indicated no influence on trace elements (Cu, Zn, Mn) revealing that the soils of the localities studied are still very favorable to cocoa cultivation.Conclusion. The presence of exchangeable Al indicated no influence on trace elements (Cu, Zn, Mn) revealing that the soils of the localities studied are still very favorable to cocoa cultivation.

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“…Practices that involve intercropping cashew trees with other crops may therefore carry risks such as competition for water, mineral elements, light, etc. Consequently, only a well-thought-out crop association that takes these risks into account and aims for a more efficient use of natural resources would be appropriate (Keli et al, 2005). According to Mansaray et al (2022), the benefits of crop association are observed when the components of the system exhibit different morphological growth patterns and strongly compete for natural resources at different times.…”

Section: Introductionmentioning

confidence: 99%

Agronomic Performance of Young Cashew Trees Cultivated in Association with Groundnuts

Letto,

Fondio,

Adiko

et al. 2024

Journal of Agricultural Production

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Cultural association is widely practiced in rural areas by cashew nut producers. These producers typically cultivate annual plants between the rows of young cashew trees. However, there are interactions between these associated crops, which can either result in complementarity or competition among the plants for environmental resources such as water and nutrients. Consequently, young cashew seedlings newly planted were associated with groundnuts during their first two years. The aim of this study was to investigate the compatibility of the cashew/groundnut system. The results showed that there is competition between groundnuts and young cashew trees in the first year, leading to poor cashew growth in association. Nevertheless, from the second year onwards, cashew trees cultivated in association exhibited similar growth to those cultivated in monoculture. Therefore, it would be advisable to plant groundnut seeds sufficiently far from cashew tree seedlings to avoid potential competition in the first year of cultivation.

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Associations culturales à base d\'hévéa : bilan de 20 années d\'expérimentations en Côte d\'Ivoire. Partie 1 : Comportement végétatif

Cited by 5 publications

References 4 publications

Assessment of Tapping Quality in Rubber Tree Cultivation in Cote Divoire: Case of Yamoussoukro, Tiassale and Anguededou Plantations

Assessment of Tapping Quality in Rubber Tree Cultivation in Cote Divoire: Case of Yamoussoukro, Tiassale and Anguededou Plantations

Distribution de l'aluminium échangeable et total dans les sols des agrosystèmes à base de Cacaoyer (<i>Theobroma cacao,/i> L.) dans les régions du centre-ouest de la Côte d'Ivoire

Agronomic Performance of Young Cashew Trees Cultivated in Association with Groundnuts

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