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It has been difficult to explain the rotation effect based solely on N availability in maize-soybean cropping systems in the moist savanna zone of sub-Saharan Africa. Although arbuscular mycorrhizal fungi (AMF) can contribute to plant growth by reducing stresses resulting from other nutrient defi...


Sanginga, N.Carsky, R.J.Dashiell, Kenton E.[Arbuscular mycorrhizal fungi (AMF) respond to rhizobial inoculation and cropping systems in farmers fields in the Guinea savanna]Arbuscular mycorrhizal fungi (AMF) respond to rhizobial inoculation and cropping systems in farmers fields in the Guinea savanna

On-farm trials were conducted at Kaduna in the northern Guinea savanna of Nigeria in 1996 and 1997. The objective was to investigate the residual effects of Mucuna and cowpea grown during the first 2-3months of the season on subsequent maize yields, to elicit farmers' feedback on these cropping s...


Oyewole, B.Carsky, R.J.Schulz, S.[Onfarm testing of Mucuna and cowpea double cropping with maize in the Guinea savanna of Nigeria]Onfarm testing of Mucuna and cowpea double cropping with maize in the Guinea savanna of Nigeria

Striga hermonthica is a serious parasite of cereals in most of the semi-arid savanna zone of West Africa, causing substantial yield loss. It has been observed that some soybean cultivars are capable of stimulating germination of S. hermonthica seed, which would reduce the seed bank in the soil. T...


Carsky, R.J.Berner, B.D.Oyewole, K.Dashiell, Kenton E.Schulz, S.[Reduction of Striga hermonthica parasitism on maize using soybean rotation]Reduction of Striga hermonthica parasitism on maize using soybean rotation

In the moist savanna zone with a 180 to 190 day growing period, early season cowpea immediately followed by a late season cereal crop can maximize the benefit of the legume to the cereal. Traditional cereal crops for this system are millet and sorghum but new early maize varieties can also be use...


Carsky, R.J.Singh, B.B.Oyewole, B.[Contribution of early season cowpea to late season maize in the savanna zone of West Africa]Contribution of early season cowpea to late season maize in the savanna zone of West Africa

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

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

Sustainable resource management is the critical agricultural research and development challenge in sub-Saharan Africa. The accumulated knowledge on soil management gathered over the last 10 years, combined with solid crop improvement and plant health research at farmers’ level, has brought us to ...


Sanginga, N.Dashiell, Kenton E.Diels, J.Vanlauwe, BernardLyasse, O.Carsky, R.J.Tarawali, S.Asafo-Adjei, B.Menkir, A.Schulz, S.Singh, B.B.Chikoye, D.Keatinge, D.Ortiz, R.[Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna]Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna

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