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Journal Article 2016-06-01

Autor: Rao, Idupulapati M. Miles, John W. Beebe, Stephen E. Horst, Walter J.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/75628

Investigación en Agricultura
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Rao, Idupulapati M. ,  Miles, John W. ,  Beebe, Stephen E. ,  Horst, Walter J. ,  [Root adaptations to soils with low fertility and aluminium toxicity] ,  Root adaptations to soils with low fertility and aluminium toxicity
Journal Article 1998

Autor: Brouwer, J. Powell, J.M.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/30022

Investigación en Agricultura
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Brouwer, J. ,  Powell, J.M. ,  [Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure] ,  Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure
Journal Article 1995

Autor: Williams, Timothy O. Powell, J.M. Fernández Rivera, S.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/29323

Investigación en Agricultura
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Williams, Timothy O. ,  Powell, J.M. ,  Fernández Rivera, S. ,  [Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?] ,  Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?
Journal Article 1997

Autor: Smith, Jimmy W. Naazie, A. Larbi, Asamoah Agyemang, K. Tarawali, Shirley A.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/29327

Investigación en Agricultura
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Smith, Jimmy W. ,  Naazie, A. ,  Larbi, Asamoah ,  Agyemang, K. ,  Tarawali, Shirley A. ,  [Integrated crop-livestock systems in sub-Saharan Africa: An option or an imperative?] ,  Integrated crop-livestock systems in sub-Saharan Africa: An option or an imperative?
Journal Article 1995

Autor: Williams, Timothy O. Powell, J.M. Fernández Rivera, S.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/29547

Investigación en Agricultura
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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] ,  Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger
Journal Article 2004

Autor: Astatke, A. Mamo, T. Peden, Donald G. Diedhiou, M.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/32909

Investigación en Agricultura
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Astatke, A. ,  Mamo, T. ,  Peden, Donald G. ,  Diedhiou, M. ,  [Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields] ,  Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields
Journal Article 2002

Autor: Omamo, S.W. Williams, J.C. Obare, G.A. Ndiwa, Nicholas N.

This paper uses data from a 1998 survey of farming households in Nakuru district, Kenya to explore factors influencing soil fertility management decisions of smallholder farmers in Africa. The modeling strategy builds on results of research in soil science that point to the joint determination of...

Enlace original: https://cgspace.cgiar.org/handle/10568/32929

Investigación en Agricultura
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Omamo, S.W. ,  Williams, J.C. ,  Obare, G.A. ,  Ndiwa, Nicholas N. ,  [Soil fertility management on small farms in Africa: Evidence from Nakuru district, Kenya] ,  Soil fertility management on small farms in Africa: Evidence from Nakuru district, Kenya
Journal Article 1998

Autor: Haque, I. Lupwayi, N.Z. Ssali, H.

Phosphorus (P) is required to improve soil fertility for food and feed produciton in sub-Saharan Africa, but the high cost of conventional, water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effectiveness, in terms of seed product...

Enlace original: https://cgspace.cgiar.org/handle/10568/28873

Investigación en Agricultura
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Haque, I. ,  Lupwayi, N.Z. ,  Ssali, H. ,  [Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production] ,  Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production
Journal Article 2001

Autor: Delve, Robert J. Cadisch, Georg Tanner, J.C. Thorpe, W.R. Thorne, Peter J. Giller, Ken E.

The role of livestock in nitrogen cycling in mixed crop-livestock farming systems of sub-Saharan Africa was explored. Cattle were fed a range of diets to investigate the effects on partitioning of nitrogen between urine and faeces and on the chemical composition of the manures produced. The trade...

Enlace original: https://cgspace.cgiar.org/handle/10568/30027

Investigación en Agricultura
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Delve, Robert J. ,  Cadisch, Georg ,  Tanner, J.C. ,  Thorpe, W.R. ,  Thorne, Peter J. ,  Giller, Ken E. ,  [Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa] ,  Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa
Journal Article 1998

Autor: Mohamed-Saleem, M.A.

Thiss paper presents an overview of the current status, problems and prospects for achieving a better nutrient balance to support varying levels of productivity from the three major livestock systems in Africa. In free range grazing systems, livestock nutrient deficiencies are mainly overcome by ...

Enlace original: https://cgspace.cgiar.org/handle/10568/30023

Investigación en Agricultura
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Mohamed-Saleem, M.A. ,  [Nutrient balance patterns in African livestock systems] ,  Nutrient balance patterns in African livestock systems

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