Thesiss

In Morocco, agriculture is still empirical and most of the farmer's practices are inherited from colonization. Present Moroccan farming systems limit the opportunity to leave crop residue on the soil surface, which could help to conserve soil and water. Agricultural residues hav…

Cereal stubble and straw are widely used as animal feeds for sheep in arid areas of Morocco. Their low protein concentration limit their intake and therefore their potential of production. A 10-wk wheat (Triticum aestivum L.) stubble grazing trial was conducted to study the effe…

Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera sen…

Context . Approximately one billion people live in semi-arid and arid regions, and of these about 40% live on less than a dollar a day. Legumes crops are an important component of sustainable agriculture, but they are often grown under intermittent or terminal droughts. Thus, im…

Piliostigma reticulatum and Guiera senegalensis are two native shrubs that coexist with row crops in parkland systems of the Sahel of Africa. Although permanently green all year around in soil depleted in nutrients and dry for a nine-month period, these shrubs have been largely …