Ceylon: Mahaweli Ganga irrigation and hydro-power survey, vol 6, irrigation, part 1, general basic study of project
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| Format: | Texto biblioteca |
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1968
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| Subjects: | IRRIGATION, IRRIGATION SYSTEMS, CANALS, HYDRAULIC STRUCTURES, PLANNING, CROPS, WATER REQUIREMENTS, TRANSPIRATION, EVAPORATION, PRECIPITATION, VOLUME, MEASUREMENT, DRAINAGE SYSTEMS, LAND USE, LAND CLEARING, SOIL CONSERVATION, RESEAU D'IRRIGATION, RIEGO, SISTEMAS DE RIEGO, CANAL, OUVRAGE HYDRAULIQUE, PLANIFICATION, PLANTE DE CULTURE, BESOIN EN EAU, MESURE, RESEAU DE DRAINAGE, UTILISATION DES TERRES, DEFRICHEMENT, CONSERVATION DES SOLS, CANALES, CONSTRUCCIONES HIDRAULICAS, PLANIFICACION, CULTIVOS, NECESIDADES DE AGUA, TRANSPIRACION, EVAPORACION, PRECIPITACION ATMOSFERICA, VOLUMEN, MEDICION, RED DE DRENAJE, UTILIZACION DE LA TIERRA, DESMONTE, CONSERVACION DE SUELOS, |
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