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International audienceEffect of Cordyla pinnata litter on crop yield: An experimental agroforestry approach. Litterfall may be an important way of nutrient transfer from trees to soils. The leaf annual biomass production of C. pinnata in a parkland located in Senegal was 33.7 g m$^{-2}$. The predicted weight loss of the leaf litter was 75% within 67 days. Increasing litter dose (0, 39, 78, 156 kg per t of soil or D0, D39, D78 and D156, respectively) in the soil from D0 to D156 increased total N, exchangeable Ca, Mg and K, but decreased extractable P ($p = 0.0428$). Total biomass of peanut plants decreased (-29% ) from D0 to D156 ($p < 0.001$) while litter additions to the soil increased total biomass of millet plants ($p = 0.005$) compared to the control. C. pinnata leaf litter showed then a potential to increase soil fertility and to modify crop yield.La litière provenant des arbres constitue un important mode de transfert d'éléments des végétaux aux sols. La litière foliaire de Cordyla pinnata est estimée à 33,7 g m$^{-2}$ an$^{-1}$ dans un parc agroforestier au Sénégal. La perte en masse de cette litière est de 75 % en 67 j. L'effet de la dose de cette litière (0, 39, 78, 156 kg par t de sol ou D0, D39, D78 et D156, respectivement) sur le sol et les cultures révèle qu'une augmentation de la dose de D0 à D156 augmente N total, Ca, Mg et K échangeables mais diminue P assimilable ($p = 0,0428$). La biomasse totale de l'arachide est réduite de 29 % de D0 à D156 ($p < 0,0001$) mais celle du mil augmente avec les apports de litière ($p = 0,005$). La litière foliaire de C. pinnata montre ainsi un potentiel pour améliorer la fertilité des sols et pour modifier le rendement des cultures

Effet de la liti�re de Cordyla pinnata sur les cultures : approche exp�rimentale en agroforesterie