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Simultaneous intercropping is a crop-management strategy that is applied by the majority of small-scale farmers in the derived savanna of West Africa. Developing improved systems that are close to farmers' practices is likely to lead toadoption. This paper report economic results from a 2year on-...


Manyong, Victor M.Tian, G.Makinde, K.Kolawole, G.O.[Economic evaluation of systems intercropping food crops with leguminous cover crops in the derived savanna of Nigeria]Economic evaluation of systems intercropping food crops with leguminous cover crops in the derived savanna of Nigeria

Legume cover crops are a potential means for overcoming N depletion in the derived savanna of West Africa. A 3-year trial was, therefore, conducted near Ibadan, southwestern Nigeria to measure the N contribution of 13 legume cover crops as compared to urea –N, using a N fertilizer replacement ind...


Tian, G.Kolawole, G.O.Kang, B.T.Kirchhof, G.[Nitrogen fertilizer replacement indexes of legume cover crops in the derived savanna of West Africa]Nitrogen fertilizer replacement indexes of legume cover crops in the derived savanna of West Africa

Topsoil (0–15 cm) bulk density, aggregate stability, soil dispersibility, water retention and infiltration were measured between 1989 and 1996 on an Alfisol under rehabilitation in southwestern Nigeria. The planted leguminous species were Pueraria phaseoloides, Senna siamea, Leucaena leucocephala...


Salako, F.Hauser, S.Babalola, O.Tian, G.[Improvement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions]Improvement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions

The benefit of planted fallow with legume cover crops may be limited on P deficient soil. A trial was conducted at two P deficient sites in northern Nigeria to test the hypothesis that application of P to legume cover crop fallow can substitute for N application to subsequent maize. Mainplots con...


Carsky, R.J.Oyewole, B.Tian, G.[Effect of phosphorus application in legume cover crop rotation on subsequent maize in the savanna zone of West Africa]Effect of phosphorus application in legume cover crop rotation on subsequent maize in the savanna zone of West Africa

Leguminous cover crops have the potential of making cropping systems in the tropics sustainable if they would not deplete resources such as soil water and nutrients to the detriment of companion crops. Therefore, a study was carried out at Alabata, Ibadan, southwestern Nigeria, to evaluate the ef...


Salako, F.K.Tian, G.[Soil water depletion under various leguminous cover crops in the derived savanna of west africa]Soil water depletion under various leguminous cover crops in the derived savanna of west africa

Integrated soil management with leguminous cover crops was studied at two sites in the northern Guinea savanna zone of northern Nigeria, Kaduna (190 day growing season) and Bauchi (150 days). One-year planted fallows of mucuna, lablab, and crotalaria were compared with natural grass fallow and co...


Carsky, R.J.Oyewole, B.Tian, G.[Integrated soil management for the dry savanna zone of West Africa: legume rotation and fertilizer N]Integrated soil management for the dry savanna zone of West Africa: legume rotation and fertilizer N

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