South Africa - Soil conservation in South Africa, with special reference to the control of erosion caused by water.
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| Format: | Texto biblioteca |
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1965
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| Subjects: | EROSION CONTROL, WATER EROSION, SOIL CONSERVATION, CULTURAL METHODS, TERRACE CROPPING, LUTTE ANTIEROSION, EROSION HYDRIQUE, CONSERVATION DES SOLS, CONTROL DE LA EROSION, EROSION POR EL AGUA, CONSERVACION DE SUELOS, MODE DE CULTURE, CULTURE EN TERRASSE, METODOS DE CULTIVO, CULTIVO EN TERRAZAS, |
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