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Zero-grazing and Biogas

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Created on 11 February 2013
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Full title: Sustainable Land Management in Sub-Saharan Africa_ No 4. Road Runoff harvesting


Agriculture in Sub-Saharan Africa is constrained by highly variable rainfall, frequent droughts and low water productivity. There is an urgent need for better management of water on farmers' fields - and for increasing its availability through water harvesting.

These mini-films show a series of Sustainable Land Management (SLM) practices that have been proven in Sub-Saharan Africa. As well as helping to control land degradation and improve production, the practices constitute important components within the climate change adaptation strategies of small-scale farmers. An analytical conclusion is also included.

The director and script-writer, William Critchley, Senior Sustainable Land Management Specialist at the Centre for International Cooperation, VU University of Amsterdam, reviews development experience, and sets out the state of the art in Sub-Saharan Africa.

In number five of the series, zero-grazing dairy production is introduced. This is a labour-intensive method of production that maximizes milk output per unit area: this is ideally suited to urban/ peri-urban agriculture where land is scarce yet there is often plenty of family labour. Fodder may be grown in the backyard, or brought in from close-by areas.

Zero-grazing can be conveniently combined with the production of biogas; the manure, mixed with water, provides input to the biogas plant. The purposes are, among others, recycling of local wastes into milk and fertile slurry with the zero-grazing; and production of clean renewable energy close to home with the biogas.

More info: Information Cards: Sustainable Land Management in Sub-Saharan Africa 
Directed and scripted by: William Critchley (VU University)
Produced by: Josephine Rogers (Countrywise Communication)
Year: 2012
Language: English



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