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Le monde agricole est confronte a des baisses frequentes de rendements qui sont liees a l’etat physique (structure et/ou texture) ou a la non fertilite du sol. Pour y remedier, nous avons eu recourt aux legumineuses alimentaires. Ainsi, une etude a ete conduite a la station de recherche sur le coton du Centre National de Recherche Agronomique (CNRA) a Bouake, en vue d’evaluer l’effet combine du precedent cultural arachide et du taux en elements grossiers du sol sur la production du coton. Le dispositif experimental mise en place a ete en blocs de Fisher comportant quatre blocs et cinq traitements (T1, T2, T3, T4 et T5). Les resultats obtenus ont montre que la presence d’elements grossier influence fortement la resistance a la penetration des racines, avec des correlations positives (r = 0,757) et (r = 0,768) dans les tranches (0-20) et (20-40). Ce qui joue negativement sur le developpement racinaire (r = -0,820). Le precedent cultural a favorise le developpement des racines dans les traitements T3, T4 et T5. Celui-ci associe a la fertilisation minerale a permis d’obtenir un rendement de (1482 kg/ha) en T4, soit un gain de 58% par rapport a la pratique conventionnelle en milieu paysan (T2). La precedente arachide et les elements grossiers du sol influencent la production du coton. Ces resultats pourraient etre utiles pour les producteurs, dans le choix des parcelles et des pratiques culturales.Mots cles : Cotonnier, precedent cultural, elements grossiers, developpement racinaire.   English Title: Effects of the previous peanut (Arachis hypogaea L.) and the loading of coarse soil elements on cotton production (Gossypium hirsutum L.)The agricultural world is confronted with frequent yield reductions that are linked to the physical state (structure and/or texture) or non-fertility of the soil. To remedy this, we have resorted to the use of food legumes. Thus, a study was conducted at the cotton research station of the National Center for Agronomic Research (CNRA) in Bouake, in order to assess the combined effect of the previous groundnut crop and the level of coarse soil elements on production cotton. The experimental set-up was in Fisher blocks comprising four blocks and five treatments (T1, T2, T3, T4 and T5). The results obtained showed that the presence of coarse elements strongly influences the resistance to root penetration, with positive correlations (r = 0.757) and (r = 0.768) in the slices (0-20) and (20-40). Which negatively affects root development (r = -0.820). The previous crop favored the development of roots in T3, T4 and T5 treatments. This combined with mineral fertilization made it possible to obtain a yield of (1482 kg / ha) in T4, that is to say a gain of 58% compared to the conventional practice in peasant environment (T2). The previous peanut and coarse soil elements influence cotton production. These results could be useful for producers, in the choice of plots and cultural practices.Keywords: Cotton plant, crop precedent, coarse elements, root development.

international journal of biological and chemical sciences

Effets du précédent cultural arachide (&lt;i&gt;Arachis hypogaea&lt;/i&gt; L.) et de la charge en éléments grossiers du sol sur la production du coton (&lt;i&gt;Gossypium hirsutum&lt;/i&gt; L.)