Resource-poor farmers in developing nations cultivate marginal lands, thereby exacerbating the problem of soil degradation through poor plant growth and ground coverage. An assessment of ground cover under such a practice will provide a guideline for soil conservation. Ground cover by leguminous cover crops (e.g., Mucuna pruriens, Pueraria phaseoloides and Vigna unguiculata), associated with yam, maize and rice was measured in three different experiments in southwestern Nigeria using beaded-string method while leaf area was measured using a flat-bed scanner.
Résultats de la recherche
Showing items 1 through 9 of 172.-
Library ResourceDocuments de politique et mémoiresdécembre, 2007Nigéria
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Library ResourceArticles et Livresdécembre, 2009Algérie, Soudan, Burkina Faso, Nigéria, Mauritanie, Tchad, Mali, Cameroun, Sénégal, République centrafricaine, Soudan du Sud, Éthiopie, Niger, Érythrée
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Library ResourceRapports et recherchesdécembre, 2014Afrique, Afrique occidentale
Monitoring land-based investments in Sub-Saharan Africa (SSA): review of existing initiatives and options on way forward for developing a monitoring system
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Library ResourceArticles et Livresdécembre, 2013Ghana
The demand for rice (Oryza sativa) in Ghana is increasing at a rate of 11.8% from 939, 920 t in 2010. Though there has been some increase in production it does not match the increase in consumption. This study seeks to determine the most suitable areas for inland valley rice cultivation using computer based models for selected sites (15km by 15km) in the Brong Ahafo Region (BAR) and Western Region (WR) of Ghana. A sensitivity analysis was carried out by excluding the least contributing parameters and varying their weights to determine highly suitable areas.
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Library ResourceArticles et Livresdécembre, 2010Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Sénégal, Éthiopie, Niger, Uruguay, Érythrée, Cameroun, Tchad, République centrafricaine, Soudan du Sud, Soudan, Brésil, Afrique, Amérique du Sud
For over a decade, the globalisation of environmental, economic and social issues has induced rapid modification in agriculture and land. These changes raise the question of future extensive livestock systems in regards to the worldwide challenge to double livestock production by 2050 in ways which are safe for the environment. In order to better understand and follow modification processes, a comparative study of livestock systems and land dynamics has been carried out on seven case studies on three continents through the use of a common grid.
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Library ResourceArticles et Livresnovembre, 2011Togo, Mexique, Espagne
In this paper we analyze the causal chain, from the driving forces to the state, impacts and system responses, for several present and past human activities related to land use and land degradation. The DPSIR framework approach is used for analysing and assessing land degradation problems within a comprehensive view of interactions between human society and the environment.
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Library ResourceMultimédiaaoût, 2018Lettonie, Nigéria
Rural households are displaced from their lands without any plan in place to resettle or compensate them, for a promise of improvement in their living standards. This has not only resulted in a decline in the living standard of the rural populace, in terms of loss of land and livelihoods, the poor are also further marginalized and impoverished. This study examines the welfare implication of domestic land grabs among rural households in Delta State, Nigeria, employing primary data obtained from one hundred and seventy-three representative farming households.
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Library ResourceArticles et Livresdécembre, 2013Nigéria
Basically, climate change refers to any change in climate overtime, generally caused by natural variability and/or human activities. It has great devastating impact, particularly on agriculture and by extrapolation on farmers and the national economy. The frontline agricultural extension workers are expected to be among the principal stakeholders to teach farmers how to cope with climate change.
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Library ResourceDocuments et rapports de conférencedécembre, 2015Mali, Ghana, Afrique
Ever since the oil, financial and food crises of 2008, sub-Saharan Africa has witnessed a marked increase in large-scale investment in agricultural land. The drivers of this investment are varied and include growing food, water and energy insecurity as well as social and economic interests of investors and recipient countries. The shape of these investments and their eventual outcomes are equally influenced by the existing land and water governance systems in the host countries.
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Library ResourceDocuments de politique et mémoiresdécembre, 2001Sénégal
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