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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 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 2002

Autor: Sangare, M. Fernández Rivera, S. Hiernaux, Pierre H.Y. Bationo, B. André Pandey, V.S.

An experiment was conducted in 1996 and 1997 in semi-arid Niger, to determine the influence of supplementation (no supplement, millet bran + simple superphosphate, or millet bran + simple superphosphate + blood meal) for cattle and mulching (0 or 3 t ha-1 of Aristida sieberiana straw) on soil fer...

Enlace original: https://cgspace.cgiar.org/handle/10568/33083

Investigación en Agricultura
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Sangare, M. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Bationo, B. André ,  Pandey, V.S. ,  [Influence of dry season supplementation for cattle on soil fertility and millet (Pennisetum glaucum L.) yield in a mixed crop/livestock production system of the Sahel] ,  Influence of dry season supplementation for cattle on soil fertility and millet (Pennisetum glaucum L.) yield in a mixed crop/livestock production system of the Sahel
Conference Paper 1996

Autor: Powell, J.M. Fernández Rivera, S. Hiernaux, Pierre H.Y. Turner, M.

The sustainability of nutrient transfers in integrated rangeland/cropland systems of the Sahel was examined in relation to the impact of livestock. Rangeland nutrient balances are considered in equilibrium whereas croplands lack the internal capacity to replenish nutrient off takes in grain and c...

Enlace original: https://cgspace.cgiar.org/handle/10568/50882

Investigación en Agricultura
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Powell, J.M. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Turner, M. ,  [Nutrient cycling in integrated rangeland/cropland systems of the Sahel] ,  Nutrient cycling in integrated rangeland/cropland systems of the Sahel
Conference Paper 1997

Autor: Hiernaux, Pierre H.Y. Fernández Rivera, S. Schlecht, E. Turner, M. Williams, Timothy O.

Night corralling of livestock directly in crop fields during the dry season contributes to nutrient cycling for the benefit of crops. Rangeland grazing and corralling livestock on selected croplands result in a spatial transfer of organic matter and nutrients from rangelands to the corralling sit...

Enlace original: https://cgspace.cgiar.org/handle/10568/50811

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Fernández Rivera, S. ,  Schlecht, E. ,  Turner, M. ,  Williams, Timothy O. ,  [Livestock-mediated nutrient transfers in Sahelian agro-ecosystems] ,  Livestock-mediated nutrient transfers in Sahelian agro-ecosystems
Report 2001

Autor: Tarawali, Shirley A. Larbi, Asamoah Fernández Rivera, S. Bationo, B. André

In response to on-going agricultural intensification, crop-livestock systems are becoming more important in West African farming systems. The role of livestock in providing stability to such systems, particularly through their interaction with the soil environment is unquestionable. Worldwide, th...

Enlace original: https://cgspace.cgiar.org/handle/10568/51137

Investigación en Agricultura
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Tarawali, Shirley A. ,  Larbi, Asamoah ,  Fernández Rivera, S. ,  Bationo, B. André ,  [The contribution of livestock to soil fertility] ,  The contribution of livestock to soil fertility
Conference Paper 1997

Autor: Williams, Timothy O. Hiernaux, Pierre H.Y. Fernández Rivera, S.

This paper outlines the role of livestock in integrated nutrient management in semi-arid west Africa. Farmers' strategies in the use of animal manure as well as research efforts to better understand the process of nutrient cycling through livestock in mixed farming systems are described. It con...

Enlace original: https://cgspace.cgiar.org/handle/10568/51215

Investigación en Agricultura
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Williams, Timothy O. ,  Hiernaux, Pierre H.Y. ,  Fernández Rivera, S. ,  [The role of livestock in integrated nutrient management in semi-arid West Africa] ,  The role of livestock in integrated nutrient management in semi-arid West Africa
Conference Paper 1998

Autor: Schlecht, E. Fernández Rivera, S. Hiernaux, Pierre H.Y.

The influence of forage type, feed allowance and watering time on faeces and urine excretion by cattle, sheep and goats was studied. Higher amounts of nitrogen (N) were excreted during the day than during the night. The occurrence of defaecation and urination was highest at the time of getting up...

Enlace original: https://cgspace.cgiar.org/handle/10568/51242

Investigación en Agricultura
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Schlecht, E. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  [Timing, size and nitrogen concentration of faecal and urinary excretions in cattle, sheep and goats: An they be exploited for better manuring of cropland?] ,  Timing, size and nitrogen concentration of faecal and urinary excretions in cattle, sheep and goats: An they be exploited for better manuring of cropland?
Conference Paper 1995

Autor: Somda, Z.C. Powell, J.M. Fernández Rivera, S. Reed, J.D.

Mixed farming systems in semi-arid West Africa rely on recycling organically bound nutrients to maintain soil productivity. The passage of plant biomass through ruminant livestock plays a major role in the nutrient cycles of this region. The feeding value of crop residues and browses and their im...

Enlace original: https://cgspace.cgiar.org/handle/10568/2776

Investigación en Agricultura
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Somda, Z.C. ,  Powell, J.M. ,  Fernández Rivera, S. ,  Reed, J.D. ,  [Feed factors affecting nutrient excretion by ruminants and the fate of nutrients when applied to soil] ,  Feed factors affecting nutrient excretion by ruminants and the fate of nutrients when applied to soil

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