نتایج جستجو برای: west african

تعداد نتایج: 189401  

2005
S. W. Chenyambuga O. Hanotte J. Hirbo P. C. Watts S. J. Kemp G. C. Kifaro P. S. Gwakisa P. H. Petersen E. O. Rege

Genetic diversity of sub-Saharan African goats was assessed using 19 microsatellite markers. Breeds were sampled from eastern Africa (Maasai, Kigezi, Mubende, North West Highland, Arsi-Bale), southern Africa (Ndebele, Pafuri) and West Africa (West African Dwarf, Maure, Djallonke). European breeds (Grisons Striped, Toggenburg), Asian breeds (Mongolian Cashmere, Bandipur) and a Middle East breed ...

Journal: :International Higher Education 2012

Journal: :The Canadian Entomologist 1894

2000
J.-L. Garcia

The review is an attempt to specify particular features of the biological processes involved in the nitrogen cycle as they occur in the following categories of West African ecosystems : flooded rice .fields, rain-fed agroecosystems, and forests. In rice fields in Senegal the nitrogen input through blue-green algae was reported to be in the range -, of 1-30 kg ha-' yr-'. Figures for heterotrophi...

Journal: :Cahiers Agricultures 2011

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