
doi: 10.35759/jabs.150.8
Objectif : Pour tenter de réduire les effets de ces changements climatiques sur les productions, un apport au sol avant les mises en place des cultures de 12 t/ha de déchets de coton graine ou de compost associé à la moitié de la dose d’engrais minéral recommandée (200 kg/ha de NPK + 50 kg/ha d’urée) a permis d’améliorer l’humidité du sol sans aucun effet sur l’eau utile du sol. L’apport de déchets de coton graine ou de compost a permis aussi d’améliorer le nombre de capsules par plante, le nombre de capsules mûres récoltées, la qualité sanitaire des capsules mûres et surtout le rendement en coton graine. Conclusion : L’apport de 12 tonnes/ha de déchets de coton graine associés à de l’engrais chimique à la dose de 100 kg/ha de NPK et 25 kg/ha d’urée constituent un niveau optimum d’utilisation des déchets de coton graine en coton culture. Mots clés : Déchets de Coton graine, Humidité du sol, Rendement du cotonnier, Côte d’Ivoire. Effect of ginned cotton-seed waste application to the ground on soil moisture and cotton yield in northern Côte d'Ivoire ABSTRACT Objective: In an attempt to reduce the effects of climate change on production, an application to the ground prior to the establishment of 12 t/ha of ginned seed cotton waste associated with half of the recommended mineral fertilizer dose (200 kg/ha of NPK + 50 kg/ha of urea) improved soil moisture without any effect on the soil available water capacity. The supply of seed cotton waste or compost has also improved the number of capsules/plant, the number of mature capsules harvested, the sanitary quality of mature capsules and, above all, the yield in seed cotton. Conclusion: The supply of 12 tons/ha of seed cotton waste associated with chemical fertilizer at the dose of 100 kg/ha of NPK and 25 kg/ha of urea constitutes an optimum level of use of cotton seed waste in cotton farming. Keywords: Seed Cotton Waste, Soil Moisture, Cotton Yield, Ivory Coast.
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