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Yusuf, A.A.Iwuafor, E.N.O.Abaidoo, R.C.Olufajo, O.O.Sanginga, Nteranya[Grain legume rotation benefits to maize in the northern Guinea savanna of Nigeria : Fixed-nitrogen versus other rotation effects]Grain legume rotation benefits to maize in the northern Guinea savanna of Nigeria : Fixed-nitrogen versus other rotation effects

Conservation agriculture (CA) based on hand-hoe prepared planting basins is being widely promoted in southern Africa, targeting resource-constrained farmers with limited access to draft power. This study was conducted across 15 districts covering four agro-ecological zones in Zimbabwe where paire...


Nyamangara, JusticeMasvaya ENTirivavi RNyengerai K[Effect of hand-hoe based conservation agriculture on soil fertility and maize yield in selected smallholder areas in Zimbabwe]Effect of hand-hoe based conservation agriculture on soil fertility and maize yield in selected smallholder areas in Zimbabwe

Integrated soil fertility management (ISFM) involving a nitrogen-fixing grain legume, limited chemical fertilizer, and a resilient rice variety may reduce the rate of soil fertility loss and enhance rice productivity in fragile upland rice ecosystems. A 2-year, on-farm study was carried out at Eg...


Oikeh, S.O.Houngnandan, P.Abaidoo, R.C.Rahimou, I.Touré, A.Niang, A.Akintayo, I.[Integrated soil fertility management involving promiscuous dualpurpose soybean and upland NERICA enhanced rice productivity in the savannas]Integrated soil fertility management involving promiscuous dualpurpose soybean and upland NERICA enhanced rice productivity in the savannas

Two varieties of soybean (Glycine max (L.) Merr.) and a maize (Zea mays L.) control crop were grown in replicated trials at 10 sites in the Guinea savana of Nigeria in 1993 followed by a test crop of maize in 1994 with 20 or 60 kg N ha-1 to test effect of soybean on subsequent maize grain yield. ...

Deux varietes de soya (Glycine max (L) Merr.) et une varietede mas (Zea mays L.) en temps que temoin ont ete cultivees en essais repliques sur 10 sites dans la savane Guineenne du Nigeria en 1993. Ces cultures ont ete suivies d'une culture-test de mais en 1994 avec 20 ou 60 kg N ha-1. L'augmentat...


Carsky, R.Abaidoo, R.C.Dashiell, Kenton E.Sanginga, N.[Effect of soybean on subsequent maize grain yield in the Guinea savanna zone of West Africa]Effect of soybean on subsequent maize grain yield in the Guinea savanna zone of West Africa

Striga hermonthica, an obligate root parasite of grasses, is one of the most severe constraints to cereal production in sub-Saharan Africa. In the recent past, prior to increased production pressure on land, S. hermonthica was controlled in African farming systems by prolonged crop rotations with...


Berner, D.A.Carsky, R.Dashiell, Kenton E.Kling, J.Manyong, Victor M.[A land management based approach to integrated Striga hermonthica control in subSaharan Africa]A land management based approach to integrated Striga hermonthica control in subSaharan Africa

Heinemann, Alexandre B.Ramírez Villegas, JuliánNascente, AdrianoZeviani, Walmes MarquesStone, Luís FernandoSentelhas, Paulo Cesar[Upland rice cultivar responses to row spacing and water stress across multiple environments]Upland rice cultivar responses to row spacing and water stress across multiple environments

This study investigates the effect of different crop rotation systems on carbon (C) and nitrogen (N) in root biomass as well as on soil organic carbon (SOC). Soils under spring barley and spring barley/pea mixture were sampled both in organic and conventional crop rotations. The amounts of root b...


Córdoba, Eva MaríaChirinda, NgonidzasheLi, F.Olesen, J. E.[Contributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systems]Contributions from carbon and nitrogen in roots to closing the yield gap between conventional and organic cropping systems

Macro-organisms contribute significantly to soil fertility improvement. The influence of conservation agriculture (CA) in southern Africa on their populations has not yet been fully understood. Thus, the objective of the current study was to evaluate the effects of CA and conventional tillage on ...


Muoni, T.Mhlanga, B.Forkman, J.Sitali, M.Thierfelder, Christian[Tillage and crop rotations enhance populations of earthworms, termites, dung beetles and centipedes: Evidence from a long-term trial in Zambia]Tillage and crop rotations enhance populations of earthworms, termites, dung beetles and centipedes: Evidence from a long-term trial in Zambia
Kakuhenzire, R.Lemaga, B.Kashaija, I.Ortiz, O.Mateeka, B.[Effect of Crotalaria falcata in crop rotation and fallowing on potato bacterial wilt incidence, disease severity and latent infection in tubers and field soil.]Effect of Crotalaria falcata in crop rotation and fallowing on potato bacterial wilt incidence, disease severity and latent infection in tubers and field soil.

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