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Journal Article 1996

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

In the Sahel of West Africa, the productivities of rangelands, croplands and livestock are inextricably linked. Cattle, sheep and goats graze rangelands and crop residues, and their manure/urine is used to fertilize crops. Rangelands provide important feeds during the manuring period, resulting i...

Enlace original: https://cgspace.cgiar.org/handle/10568/28104

Investigación en Agricultura
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Powell, J.M. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Turner, M.D. ,  [Nutrient cycling in integrated rangeland/cropland systems of the Sahel] ,  Nutrient cycling in integrated rangeland/cropland systems of the Sahel
Journal Article 1994

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

Plant density and tiller cunts were done in several Sahelian rangelands in Mali, under a variety of soil, rainfall and grazing situations. Numeric models were developed to explain the dynamic relationship between grass tillering and herb density. Tests of application of these models to the plant ...

Enlace original: https://cgspace.cgiar.org/handle/10568/28095

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Leeuw, P.N. de ,  Diarra, L. ,  [Modelling tillering of annual grasses as a function of plant density: Application to Sahelian rangelands productivity and dynamics] ,  Modelling tillering of annual grasses as a function of plant density: Application to Sahelian rangelands productivity and dynamics
Journal Article 2009-08-30

Autor: Hiernaux, Pierre H.Y. Mougin, E. Diarra, L. Soumaguel, N. Lavenu, F. Tracol, Y. Diawara, M.

Twenty-five rangeland sites were monitored over two decades (1984–2006) first to assess the impact of the 1983–1984 droughts on fodder resources, then to better understand ecosystem functioning and dynamics. Sites are sampled along the south–north bioclimatic gradient in Gourma (Mali), within thr...

Enlace original: https://cgspace.cgiar.org/handle/10568/1955

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Mougin, E. ,  Diarra, L. ,  Soumaguel, N. ,  Lavenu, F. ,  Tracol, Y. ,  Diawara, M. ,  [Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali] ,  Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali
Conference Paper 1995

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

This paper deals with foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali. It discusses the location of study site, vegetation in the grazing orbit, herd management and livestock behaviour. Results on seasonal variation in feed supply, selection of the annual grazing or...

Enlace original: https://cgspace.cgiar.org/handle/10568/2774

Investigación en Agricultura
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Diarra, L. ,  Hiernaux, Pierre H.Y. ,  Leeuw, P.N. de ,  [Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali] ,  Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali
Journal Article 1996

Autor: Hiernaux, Pierre H.Y. Turner, M.D.

1. growth and nutrient-uptake responses of annual rangeland to defoliation were studied at 13 sandy range sites located across the Sahelian zone of mali between 1977 and 1989. 34 clipping experiments (site-years) were conducted using identical treatment designs with respect to the timing and freq...

Enlace original: https://cgspace.cgiar.org/handle/10568/28870

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Turner, M.D. ,  [The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands] ,  The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands
Journal Article 1999

Autor: Ayantunde, Augustine A. Hiernaux, Pierre H.Y. Fernández Rivera, S. Keulen, H. van Udo, H.M.J.

The selective use by cattle of range resources in the Sahel was assessed in terms of quantity and nutritional quality of the herbage grazed and diet selected. Peak standing crop was 1951 kg ha -1 dry matter (DM) with 47.9 kg nitrogen (N) ha-1 and 7.4 kg phosphorus (P) ha -1. Esophageally fistulat...

Enlace original: https://cgspace.cgiar.org/handle/10568/28875

Investigación en Agricultura
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Ayantunde, Augustine A. ,  Hiernaux, Pierre H.Y. ,  Fernández Rivera, S. ,  Keulen, H. van ,  Udo, H.M.J. ,  [Selective grazing by cattle on spatially and seasonally heterogenous rangeland in Sahel] ,  Selective grazing by cattle on spatially and seasonally heterogenous rangeland in Sahel
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
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

Investigación en Agricultura
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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 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
Enlace permanente
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

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