Revue bibliographique sur la gestion de la fertilité des sols cultivés en igname en Côte d\'Ivoire

Abstract

Gestion de la fertilité des sols cultivés en igname

Cultivar and Soil Fertilizer Treatment Affect Seed Production of Sweet Yellow Yam (<i>Dioscorea dumetorum</i>) on Highly Acidic Soils of the Western Highlands Region of Cameroon

“…This could be due to its high nitrogen content, which promotes vegetative growth. This supports the idea of [27] that N appears to be of great importance in yam cultivation.…”

“…The oil palm bunch ash + poultry manure treatment increased tuber weight, vine length, of yam by 66% and 25%, respectively, compared with inorganic fertilizer (NPK) and 37%, 22% respectively, compared with poultry manure alone. The success of T2 and T7 treatments confirms the idea of [27], which nitrogen seems to be of great importance in yam cultivation. The T7 treatment which was higher than T0 shows the importance of CaO and fowl droppings which increased the pH by 4.45 (towards 7) and which is optimal for yam cultivation; thus favouring the removal of nutrients from the soil for its growth.…”

“…The quantities per plant were obtained on the basis of quantities habitually applied on D. cayenensis-rotundata complex. For example, the 25 g of NPK 20.10.10 dose was obtained from [27] cit. [28].…”

Yam Cropping System in Cote d’Ivoire: Current Practices and Constraints

“…Yam is increasingly becoming a source of income (Doumbia et al, 2006). In Côte d'Ivoire, yam production is mainly located in the northeastern, central and eastern parts of the country, above the 8th parallel north, where it is a staple food for populations (Doumbia et al, 2006;N'Goran et al, 2007). However, yam production, in the South of the country, as a food crop supporting the creation of new coffee and cocoa plantations is far from negligible (Doumbia et al, 2006).…”

Effet des écumes de canne à sucre, de la poudre et du compost à base de <i>Chromolaena odorata</i> (L.) King R.M. & H.E. Rob sur la croissance de l’oseille de Guinée (<i>Hibiscus sabdariffa</i> L.)

“…Les travaux antérieurs ont fait l'objet de l'utilisation de C. odorata comme engrais vert pour les cultures du riz, maïs et de la Roselle (Quansah et al, 2001 ;N'Goran et al, 2002 ;N'Goran et al, 2007 ;Ognalaga et Itsoma, 2014) et par paillage sur les cultures de pomme de terre, de poivre et d'ignames (Afrifa et al, 2003). Cependant, les différents travaux consultés dans la littérature n'ont pas permis de mettre en évidence l'utilisation d'un compost à base de C. odorata dans la culture de H. sabdariffa L.…”