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Africa urgently needs a uniquely African Green Revolution- a revolution that is long overdue, a revolution that will help the continent in its quest for dignity and peace Mr. Kofi Annan, Former Secretary General of the United Nations (UN), currently the Board Chair of Alliance for a Green Revolution in Africa (AGRA) Research work on soil in Sub-Saharan Africa (SSA) has generated numerous outputs but very few have been translated into adoption to improve the livelihoods of the smallholder farmers. This is the greatest challenge Africa needs to address in order to achieve the highly sought after green revolution Andre Bationo Soil Health Specialist, Alliance for a Green Revolution in Africa (AGRA), Accra, Ghana An African Green Revolution can apply the power of knowledge and technology with an environmental touch: disseminating many crop varieties that will thrive in diverse conditions; improving soil health through integrated soil fertility management; and developing technologies that maximize the use of rainwater, deliver small-scale irrigation and mitigate against impacts of unfavourable and changing climatic conditions.
Biology --- Agriculture. Animal husbandry. Hunting. Fishery --- biologie --- landbouw
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Inclusion of legumes in cropping systems can play an increasingly important role to maintain soil fertility and sustain crop production. Legumes are an important source of nutrition to both humans and livestock by providing the much needed protein, minerals, fiber and vitamins. The sale of legumes seed, leaves and fiber generates income for the marginalized communities especially women in the dryland areas. Cultivation of legumes is essential for the regeneration of nutrient-deficient soils. Legumes can be incorporated into cropping systems as green manure, intercropped or rotated with cereals and as leguminous shrubs in improved fallow systems. By biologically fixing nitrogen (BNF) in the soil, legumes provide a relatively low-cost method of replacing otherwise expensive inorganic nitrogen in the soil. Legumes also improve other soil physical properties, provide ground cover and reduce soil erosion, increase soil organic matter, cation exchange capacity, microbial activity and lowers soil temperature and suppress weeds and pests. All these beneficial effects result in enhanced soil fertility and boosts subsequent cereal crop yields. Legumes therefore play an important role of improving the livelihoods of smallholder farmers around the world. Despite the above benefits, production of legumes in SSA is hampered by a number of constraints. Most soils in SSA are deficient in key nutrients especially phosphorus that is essential for proper legume establishment. Other limitations include low soil pH, high salinity, drought and flooding. Legume production is also hindered by new diseases, pests, and weeds, which farmers need to learn how to control if the full benefits of legumes are to be gained. Beyond the abiotic factors are issues of access to inputs (improved seed and fertilizers), markets and access to relevant production information. This book presents a synthesis of research work on legumes and draws attention to the importance of legumes in integrated soil fertility management (ISFM) and poverty alleviation in SSA.
Agriculture. Animal husbandry. Hunting. Fishery --- landbouw --- armoede
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Biology --- Agriculture. Animal husbandry. Hunting. Fishery --- biologie --- landbouw --- Africa
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Agriculture. Animal husbandry. Hunting. Fishery --- landbouw --- armoede
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