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Journal Article 1999

Autor: Hiernaux, Pierre H.Y. Bielders, Charles L. Valentin, Christian Bationo, B. André Fernández Rivera, S.

The effects of 4 years grazing by sheep and goats at various stocking rates on soil surface features, bulk density, organic C, N and P contents and pH were investigated in Sadore, Niger. Studies were also conducted in a fallow subjected to 9 years of intensive grazing. Although grazing reduced (P...

Enlace original: https://cgspace.cgiar.org/handle/10568/28876

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Bielders, Charles L. ,  Valentin, Christian ,  Bationo, B. André ,  Fernández Rivera, S. ,  [Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands] ,  Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands
Journal Article 2004

Autor: Powell, J.M. Pearson, R.A. Hiernaux, Pierre H.Y.

Many semiarid regions of Sub-Saharan Africa (SSA) are experiencing vast increases in human population pressure and urbanization. These augment the demand for agricultural products and have led to the expansion, intensification, and often closer integration of crop and livestock production systems...

Enlace original: https://cgspace.cgiar.org/handle/10568/30039

Investigación en Agricultura
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Powell, J.M. ,  Pearson, R.A. ,  Hiernaux, Pierre H.Y. ,  [Crop-livestock interactions in the West African drylands] ,  Crop-livestock interactions in the West African drylands
Journal Article 2001

Autor: Esse, P.C. Buerkert, Andreas Hiernaux, Pierre H.Y. Assa, A.

In agopastoral systems of the semi arid West African Sahel, targeted applications of ruminant manure to the cropland is a widespread practice to maintain soil productivity. However, studies exploring the decomposition and mineralisation processes of manure under farmers' conditions are scarce. Th...

Enlace original: https://cgspace.cgiar.org/handle/10568/30026

Investigación en Agricultura
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Esse, P.C. ,  Buerkert, Andreas ,  Hiernaux, Pierre H.Y. ,  Assa, A. ,  [Decomposition of and nutrient release from ruminant manure on acid sandy soils in the Sahelian zone of Niger, West Africa] ,  Decomposition of and nutrient release from ruminant manure on acid sandy soils in the Sahelian zone of Niger, West Africa
Journal Article 1999

Autor: Hiernaux, Pierre H.Y. Gerard, Bruno G.

Sample sites of 'brousse tigree' and related vegetation types are described for Mali and Niger. Species composition and physical structure of the herbaceous layer as well as woody plant population were recorded at all sites together with data on soils and natural resource management. Herbage yiel...

Enlace original: https://cgspace.cgiar.org/handle/10568/27967

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Gerard, Bruno G. ,  [The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel] ,  The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel
Conference Paper 1995

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

Livestock manure is an important source of nutrients for crop production in semi-arid West Africa. An assessment of the potential of manure to sustain crop production calls for an estimation of the amounts of manure that could be produced and captured and the feed resources required to maintain l...

Enlace original: https://cgspace.cgiar.org/handle/10568/2775

Investigación en Agricultura
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Fernández Rivera, S. ,  Williams, Timothy O. ,  Hiernaux, Pierre H.Y. ,  Powell, J.M. ,  [Faecal excretion by ruminants and manure availability for crop production in semi-arid West Africa] ,  Faecal excretion by ruminants and manure availability for crop production in semi-arid West Africa
Conference Paper 1995

Autor: Hiernaux, Pierre H.Y. Leeuw, P.N. de Diarra, L.

In the Sahelian rangelands biomass production is constrained by soil moisture in the drier (100-250 mm) parts and by soil nutrients in the wetter parts. Similarly, for a given Sahelian range, nutrient deficiency would be more prominent in good than in poor rainfall years. To test this hypothesis,...

Enlace original: https://cgspace.cgiar.org/handle/10568/2778

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Hiernaux, Pierre H.Y. ,  Leeuw, P.N. de ,  Diarra, L. ,  [The interactive effects of rainfall, nutrient supply and defoliation on the herbage yields of Sahelian rangelands in north-east Mali] ,  The interactive effects of rainfall, nutrient supply and defoliation on the herbage yields of Sahelian rangelands in north-east Mali
Conference Paper 1998

Autor: Hiernaux, Pierre H.Y. Williams, Timothy O. Fernández Rivera, S. Schlecht, E.
Enlace original: https://cgspace.cgiar.org/handle/10568/50784

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Williams, Timothy O. ,  Fernández Rivera, S. ,  Schlecht, E. ,  [Les roles de l'elevage dans l'intensification des modes de production agricole au Sahel: Options socio-economiques et techniques] ,  Les roles de l'elevage dans l'intensification des modes de production agricole au Sahel: Options socio-economiques et techniques
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 1983

Autor: Hiernaux, Pierre H.Y.

Discusses the aim of studies on vegetation & feed resources in pastoral systems, describing the collection & presentation of data in the descriptive phase; identification of constraints in the diagnostic phase; and analysis of the impact of selected variables or technical innovations on the syste...

Enlace original: https://cgspace.cgiar.org/handle/10568/50024

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  [Les vegetations et les ressources fourrageres dans les systemes pastoraux] ,  Les vegetations et les ressources fourrageres dans les systemes pastoraux
Journal Article 2007-02-15

Autor: Ayantunde, Augustine A. Kango, M. Hiernaux, Pierre H.Y. Udo, H.M.J. Tabo, Ramadjita

This study documents indigenous knowledge of breeds of cattle, sheep and goats in southwestern Niger, and includes both pastoralists and agropastoralists. Our study included sheep and goats in view of the increasing importance of small ruminants in livestock production systems in the Sahel since ...

Enlace original: https://cgspace.cgiar.org/handle/10568/1293

Investigación en Agricultura
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Ayantunde, Augustine A. ,  Kango, M. ,  Hiernaux, Pierre H.Y. ,  Udo, H.M.J. ,  Tabo, Ramadjita ,  [Herders' perceptions on ruminant livestock breeds and breeding management in Southwestern Niger] ,  Herders' perceptions on ruminant livestock breeds and breeding management in Southwestern Niger

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