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The restorative ability of herbaceous (Psophocarpus palustris, Pueraria phaseoloides) and woody (Leucaena leucocephala, Senna siamea, Acacia leptocarpa, Acacia auriculiformis) legume species and of natural regrowth was studied on an eroded and compacted Oxic Paleustalf in southwestern Nigeria. Co...


Kang, B.T.Salako, F.K.Akobundu, I.O.Pleysier, J.L.Chianu, J.N.[Amelioration of a degraded Oxic Paleustalf by leguminous and natural fallows]Amelioration of a degraded Oxic Paleustalf by leguminous and natural fallows

Yam (Dioscorea spp.) is a tuber crop grown for food security, income generation, and traditional medicine. This crop has a high cultural value for some of the groups growing it. Most of the production comes from West Africa where the increased demand has been covered by enlarging cultivated surfa...


Frossard, EmmanuelAighewi, B.A.Aké, S.Barjolle, D.Baumann, P.Bernet, T.Daouda, D.Diby, L.Floquet, A.Hgaza, V.K.Ilboudo, L.J.Kiba, Delwendé I.Mongbo, R.L.Nacro, H.B.Nicolay, G.L.Oka, E.Ouattara, F.Y.Pouya, N.Six, JohanTraoré, I.O.[The challenge of improving soil fertility in yam cropping systems of West Africa]The challenge of improving soil fertility in yam cropping systems of West Africa

Increasing land pressure during the past three to four decades has transformed farming systems in the mid-altitude zone of East Africa. Traditional millet-, cotton-, sugarcane- and/or banana-based farming systems with an important fallow and/or grazing component have evolved into continuously cul...


Fermont, A.V.Asten, Piet J.A. vanGiller, Ken E.[Increasing land pressure in East Africa: the changing role of cassava and consequences for sustainability of farming systems]Increasing land pressure in East Africa: the changing role of cassava and consequences for sustainability of farming systems

Understanding catchment sediment or solute transport frequently relies on understanding of soil nutrient conditions and physical properties. This study investigates hydropedological patterns in a tropical catchment by understanding soil nutrient and soil surface changes. Soil nutrient concentrati...


Guzmán, Christian D.Hoyos-Villada, FannySilva, Mayesse daZimale, Fasikaw A.Chirinda, NgonidzasheBotero, CésarMorales Vargas, AmaliaRivera, BaudelinoMoreno, PedroSteenhuis, Tammo S.[Variability of soil surface characteristics in a mountainous watershed in Valle del Cauca, Colombia: Implications for runoff, erosion, and conservation]Variability of soil surface characteristics in a mountainous watershed in Valle del Cauca, Colombia: Implications for runoff, erosion, and conservation

Sustained adoption of soil carbon enhancing practices (SCEPs) at scale remains an aspiration goal to maintain sufficient amount of soil carbon in household farms in order to impact on the sustained farm productivity caused by sustained soil fertility. The objective of this study is to systematica...


Karanja Ng'ang'a, StanleyAnyango Jalang'o, DorcasGirvetz, Evan H.[Soil carbon enhancing practices: a systematic review of barriers and enablers of adoption]Soil carbon enhancing practices: a systematic review of barriers and enablers of adoption

Phosphate rock (PR) is an alternative fertilizer to increase the P content of P-deficient weathered soils. We evaluated the effects of fertilizer form on indicators of biological cycling of P using an on-farm trial on a Rhodic Kandiudox in western Kenya. Treatment plots were sampled after 13 crop...


Margenot, Andrew J.Sommer, RolfMukalama, JohnParikh, Sanjai J.[Biological P cycling is influenced by the form of P fertilizer in an Oxisol]Biological P cycling is influenced by the form of P fertilizer in an Oxisol

Alley agriculture in Africa. In Alley cropping, food crops are grown in alleys formed by hedgerows of trees or shrubs, preferably legumes. The hedgerows are cut back at planting and at intervals during cropping to provide mulch and manure for crops growing in the alleys, and to prevent shading an...


Osiname, O.Tonye, J.[Alley farming research at the International Institute of Tropical Agriculture (IITA)]Alley farming research at the International Institute of Tropical Agriculture (IITA)

Establishment of Leucaena leucocephala was poor at Ibadan (Transition forest-savanna zone) and Fashola (savanna zone, 70 km north of Ibadan) in southwestern Nigeria as a result of low soil fertility and the presence of only a few native rhizobia capable of nodulating it. Inoculation with L. leuco...


Sanginga, N.Danso, S.K.A.Mulongoy, K.Ojeifo, A.A.[Persistence and recovery of introduced Rhizobium ten years after inoculation on Leucaena leucocephala grown on an Alfisol in southwetern Nigeria]Persistence and recovery of introduced Rhizobium ten years after inoculation on Leucaena leucocephala grown on an Alfisol in southwetern Nigeria

The effects of different fallow management systems on aggregate stability were studied on an Ultisol and an Alfisol in southern Nigeria. Aggregate stability was measured in natural regrowth, and planted fallows of Pueraria phaseoloides Benth. and Leucaena leucocephala Lam de Wit in a trial establ...


Salako, F.Hauser, S.[Influence of different fallow management systems on stability of soil aggregates in southern Nigeria]Influence of different fallow management systems on stability of soil aggregates in southern Nigeria

Ruminant performance in the tropics, as in the Northern Guinea Savanna of Nigeria, is affected by seasonal variation in the availability and quality of pasture, and supplementation of animal feeds in these systems is constrained by the high price of imported inputs. Also, for farming systems in t...


Odunze, A.C.Tarawali, S.A.Haan, N.C. deAkoueguon, E.Amadji, A.F.Schultze-Kraft, RainerBawa, G.S.[Forage legumes for soil productivity enhancement and quality fodder production]Forage legumes for soil productivity enhancement and quality fodder production

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