Stipagrostis pungens is a perennial grass species which belongs to the Poaceae family. It is usually found with several erect culms, grows up to 1.5 m in height, and forms substantial tufts. It is a tall stiff glabrous grass with pungent leaves, and a C4 grass with sclerophyllous, spine-tipped, inrolled leaves, with sunken stomata. The root system extends laterally for a radius of 20 m or more. The roots are covered throughout their length by a sandy sheath, which is penetrated by the root hairs that occur throughout the entire length of the sheath.
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Library ResourceDocuments de politique et mémoiresseptembre, 2018Afrique septentrionale, Tunisie
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Library ResourceRapports et recherchesjuillet, 2018Afrique septentrionale, Égypte, Maroc, Soudan, Tunisie, Afrique orientale, Éthiopie, Asie méridionale, Afghanistan, Inde, Iran, Asie occidentale, Iraq, Jordanie, Liban, Palestine, République arabe syrienne
Widespread heat waves, floods, and droughts last year were a strong reminder of the threats posed by climate change. In the non-tropical dry areas where ICARDA works we are becoming accustomed to record high temperatures and increasing water scarcity year on year. Resilience and climate change adaptation are at the heart of ICARDA’s new Strategic Plan 2017-2026 – a bold and ambitious effort to harness cutting-edge science and deliver the tools and technologies that smallholder farmers need to maintain agricultural production and protect their livelihoods.
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Library ResourceArticles et Livresmars, 2018Égypte, Afrique septentrionale
The agricultural development on newly reclaimed lands has led to many national debates about food
security and budget deficits, and the living conditions of the new settlers at the local level. This debate
is still crucial for present day Egypt, a country facing major challenges, including food security, agriculture
modernization, employment generation, and land fragmentation due to dramatic population growth.
In this context, policy makers are always seeking the best land allocation system for these new lands. This -
Library Resource
Volume 7 Issue 4
Publication évaluée par des pairsdécembre, 2018MarocWith the rapid rate of population growth and economic development, cities face enormous challenges that require both optimal and integrated solutions to meet the needs of growth and to protect the environment and sustainable development. These urban dynamics, which change over time, extend not only horizontally and upward, but also downward. Thus, underground space has been utilized increasingly to relieve the urban surface and to ensure the exploitation of underground resources.
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Library Resource
Volume 7 Issue 4
Publication évaluée par des pairsdécembre, 2018ÉgypteHistorically, the Nile Delta has played an integral part in Egyptian civilization, as its fertile soils have been cultivated for centuries. The region offers a lush oasis among the expansive arid climate of Northern Africa; however, in recent decades, many anthropogenic changes to the environment have jeopardized Egypt’s agricultural productivity. Political instability and lack of sufficient regulations regarding urban growth and encroachment have put agricultural land in the area at risk.
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Library ResourceArticles et Livresdécembre, 2018Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Éthiopie, Érythrée, Cameroun, Soudan du Sud, République centrafricaine, Sénégal, Tchad, Niger, Soudan
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Library ResourceArticles et Livresdécembre, 2018Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Éthiopie, Érythrée, Cameroun, Soudan du Sud, République centrafricaine, Sénégal, Tchad, Niger, Soudan, Afrique occidentale, Afrique
Feed and grazing management affect both the quantity and quality of animal manure and consequently nutrient cycling in the mixed crop-livestock systems in West Africa Sahel. Dietary measures can significantly influence the composition of manure and hence it’s agricultural value. High nutrient feed will generally result in higher nutrient content of the manure whereas a decline in feed quality will generally lead to increase in the indigestible fractions in the feeds.
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Library ResourceArticles et Livresoctobre, 2018Soudan, Afrique
In the Gash Delta of Eastern Sudan, spate irrigation (flood-recession farming) contributes substantially to rural livelihoods by providing better yields than rainfed dryland farming. However, spate irrigation farmers are challenged by the unpredictability of flooding. In recent decades, the number of farmers practicing spate irrigation has decreased, due to varying rainfall intensity and frequency, insufficient infrastructure and farmers’ limited capacity to manage such variations.
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Library ResourceManuels et directivesavril, 2018Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Éthiopie, Érythrée, Cameroun, Soudan du Sud, République centrafricaine, Sénégal, Tchad, Niger, Soudan, Afrique, Afrique orientale
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Library ResourceMatériels institutionnels et promotionnelsavril, 2018Maroc, Eswatini, Mali
Depuis plus de soixante ans, la FAO accompagne le développement du Maroc dans le secteur de l’alimentation et de<p></p>l’agriculture. Le pays a bénéficié de plus de 200 projets nationaux ainsi que de 65 projets régionaux depuis l’ouverture de la<p></p>Représentation de la FAO à Rabat en 1982.
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