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.
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Hauser, S.
,
[Influence of different fallow management systems on stability of soil aggregates in southern Nigeria]
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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...
Barker, D.H.
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Watson, A.J.
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Sombatpanit, S.
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Northcutt, B.
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Maglinao, Amado R.
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Ang, T.M.
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[Ground and water bioengineering for erosion control and slope stabilization]
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Ground and water bioengineering for erosion control and slope stabilization
BACKGROUND Plants depend on their root systems to acquire the water and nutrients necessary for their survival in nature, and for their yield and nutritional quality in agriculture. Root systems are complex and a variety of root phenes have been identified as contributors to adaptation to soils w...
Rao, Idupulapati M.
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Miles, John W.
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Beebe, Stephen E.
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Horst, Walter J.
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[Root adaptations to soils with low fertility and aluminium toxicity]
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Root adaptations to soils with low fertility and aluminium toxicity
Bean (Phaseolus vulgaris L) is an important crop for more than 20 millions people in Eastern, Southern and Western D.R. Congo, where its consumption can supply 60 % of dietary protein for rural and urban people with an estimated consumption of 60 kg per year and per person. It is the most grown l...
In African agriculture, availability of nutrients for crop production can be increased using external inputs such as mineral fertiliser. However, for many African farmers the large scale use of external inputs will remain beyond reach for the foreseeable future. There is, therefore, also a need f...
Brouwer, J.
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Powell, J.M.
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[Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure]
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Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure
Animal manure is of vital importance in maintaining soil fertility in semiarid west Africa due to the low level of use of inorganic fertilizer. Using data from Niger however, it is shown that insufficient animals are available to provide the manure needed to sustain crop yields on a long-term bas...
Williams, Timothy O.
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Powell, J.M.
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Fernández Rivera, S.
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[Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?]
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Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?
Rapid growth of the human and livestock populations in sub-Saharan Africa is creating unprecedented increases in food and feed demands. These population pressures on a fixed landbases are likely to promote severe competition for resources and drive agriculture progressively towards intensificatio...
Smith, Jimmy W.
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Naazie, A.
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Larbi, Asamoah
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Agyemang, K.
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Tarawali, Shirley A.
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[Integrated crop-livestock systems in sub-Saharan Africa: An option or an imperative?]
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Integrated crop-livestock systems in sub-Saharan Africa: An option or an imperative?
Despite its vital role in supporting crop production, a key question that has often been posed is whether sufficient amounts of manure are available to permit adequate food production and improvement of soil quality on a long-term basis. While this question can be addressed at a regional, nationa...
Williams, Timothy O.
,
Powell, J.M.
,
Fernández Rivera, S.
,
[Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger]
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Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger
The two years on-farm tillage research during the 1999 and 2000 cropping seasons in Ethiopian highland Vertisol area demonstrated the importance of adapting cultural practices into participatory trials. The minimum tillage package could be an effective intervention for soil conservation due to th...
Astatke, A.
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Mamo, T.
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Peden, Donald G.
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Diedhiou, M.
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[Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields]
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Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields