Descubre y comparte nuestro conocimiento público

Se han encontrado 31 recursos

Resultados de búsqueda

Journal Article 1987

Autor: Powell, J.M. Mohamed-Saleem, M.A.

Investigates Nitrogen and Phosphorus transfers in a crop - livestock system in the subhumid zone of Nigeria. Estimates N and P removed from cropland during crop residue grazing and returned to the land through manure, and the contribution crop residues make to cattle diet during the dry season.

Enlace original: https://cgspace.cgiar.org/handle/10568/28109

Investigación en Agricultura
Enlace permanente
Powell, J.M. ,  Mohamed-Saleem, M.A. ,  [Nitrogen and phosphorus transfers in a crop-livestock system in West Africa] ,  Nitrogen and phosphorus transfers in a crop-livestock system in West Africa
Journal Article 1992

Autor: Powell, J.M. Hons, F.M.

A four year field study was conducted in central Texas to evaluate the effects of sorghum (Sorghum bicolor L. Moench) genotype, fertilizer N application rate and stover removal on crop yields and plant nutrient uptake and partitioning. Fertilizer N application rates of 112 kg ha were generally su...

Enlace original: https://cgspace.cgiar.org/handle/10568/28129

Investigación en Agricultura
USA
Enlace permanente
Powell, J.M. ,  Hons, F.M. ,  [Fertilizer nitrogen and stover removal effects on sorghum yields and nutrient uptake and partitioning] ,  Fertilizer nitrogen and stover removal effects on sorghum yields and nutrient uptake and partitioning
Journal Article 1993

Autor: Kouame, C.N. Powell, J.M. Renard, C.A. Quesenberry, K.H.

The integration of forage legumes into the low-input, cereal-based farming system of the Sahel may be the key to sustaining soil, crop, and livestock production. The objectives of this study were to evaluate the effects of intercropping the forage legumes Stylosanthes fruticosa (Retz.) Slston or ...

Enlace original: https://cgspace.cgiar.org/handle/10568/28159

Investigación en Agricultura
Enlace permanente
Kouame, C.N. ,  Powell, J.M. ,  Renard, C.A. ,  Quesenberry, K.H. ,  [Plant yields and fodder quality related characteristics of millet-stylo intercropping systems in the Sahel] ,  Plant yields and fodder quality related characteristics of millet-stylo intercropping systems in the Sahel
Journal Article 1985

Autor: Powell, J.M.

Discusses the contribution of crop residues to livestock feed resources during the dry season in the Abet plains, central Nigeria. Determines the grain and vegetative dry matter yields of predominant crops and the relationship between the two; percentage composition of crop residues; fiber, silic...

Enlace original: https://cgspace.cgiar.org/handle/10568/10903

Investigación en Agricultura
Enlace permanente
Powell, J.M. ,  [Contribution des residus de recoltes au disponible fourrager de saison seche dans la plaine d'Abet (Nigeria central)] ,  Contribution des residus de recoltes au disponible fourrager de saison seche dans la plaine d'Abet (Nigeria central)
Journal Article 1984

Autor: Powell, J.M. Taylor-Powell, E.

Examines the extent and methods of crop production in the Fulani agropastoral system in central Nigeria by analyzing cropping patterns, management techniques employed, and inputs to cropping such as labour, draught power & fertilizers, and output in terms of grain yield, energy and crop residues.

Enlace original: https://cgspace.cgiar.org/handle/10568/10842

Investigación en Agricultura
Enlace permanente
Powell, J.M. ,  Taylor-Powell, E. ,  [Les activities culturales dans le systeme agropastoral peul du Nigeria central] ,  Les activities culturales dans le systeme agropastoral peul du Nigeria central
Journal Article 1985

Autor: Powell, J.M.

Discusses the contribution of crop residues to livestock feed resources during the dry season in the Abet plains, central Nigeria. Determines the grain and vegetative dry matter yields of predominant crops and the relationship between the two; percentage composition of crop residues; fiber, silic...

Enlace original: https://cgspace.cgiar.org/handle/10568/4607

Investigación en Agricultura
Enlace permanente
Powell, J.M. ,  [Contribution of fractionated crop residues to dry-season livestock feed resources in the Abet plains, central Nigeria] ,  Contribution of fractionated crop residues to dry-season livestock feed resources in the Abet plains, central Nigeria
Journal Article 1986

Autor: Powell, J.M.

Discusses the traditonal management of cattle manure in a cropping system in central Nigeria in conjunction with the agronomic benefits and problems of manure use.

Enlace original: https://cgspace.cgiar.org/handle/10568/28569

Investigación en Agricultura
Enlace permanente
Powell, J.M. ,  [Manure for cropping: Case study from central Nigeria] ,  Manure for cropping: Case study from central Nigeria
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
Enlace permanente
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: 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
Enlace permanente
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 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

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo