About: Contour trenching

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Contour trenching is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for water, and soil conservation, and to increase agricultural production. Between two trenches crops can benefit during the growing season (when there is less rain) from the subsoil water reserve gathered during the rainy season.

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  • Contour trenching is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for water, and soil conservation, and to increase agricultural production. Between two trenches crops can benefit during the growing season (when there is less rain) from the subsoil water reserve gathered during the rainy season. (en)
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  • Contour trenching is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for water, and soil conservation, and to increase agricultural production. Between two trenches crops can benefit during the growing season (when there is less rain) from the subsoil water reserve gathered during the rainy season. (en)
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  • Contour trenching (en)
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