 | 182 páginas
( 2701 MARULL , J. A method of soil and water conservation analysis . Ph.D. thesis . Cornell University , 1952. San José , IICA , 1965. 109 p . ( 2702 SEMPLE , A. T. Soil conservation - who is responsible in Central America and Mexico . | |
 | 70 páginas
... J.D. A Method of Soil and Water Conservation Analysis . Ph . D. Thesis Cornell Univ . Ithaca , N.Y. 1952. 108 p . 8.12 Aún en los casos en que claramente le convendría - 20 1 2 5 6 9 9 11 11 ADOPCION DE CULTIVO EN FAJAS. | |
 | 70 páginas
67-97 MARULL , J.D. A Method of Soil und Water Conservation Analysis . Ph.D. Thesis . Cornell University . Ithaca , New York , 1952 San José , Costa Rica . IICA 1965 , 108 pág . 6 anexos . MARULL , J.D. Desarrollo Agrícola por Areas ... | |
 | 438 páginas
( 5836 ) MARULL , J. A method of soil and water conservation analysis . Ph.D. thesis . Cornell University , 1952. San José , Costa Rica , IICA , 1965. 109 P. ( 5837 ) SEMINARIO SOBRE MANEJO DE SUELOS Y EL PROCESO DE DESARROLLO EN ... | |
 | 186 páginas
Waterproofing soil to collect precipitation . of Soil and Water Conservation 16 ( 6 ) : 281–282 . 1961 . Journal y FRASIER , G. V. Creating hidrophobic soils for water harvesting . ... Methods of soil analysis . | |
 | Warren Forsythe - 1975 - 228 páginas
CODONI , M. R. Density of soil suspensions and the use of densimeters for mechanical analyses . Soil Science 56 : 7-18 . 7 . 8 . 9 . 10 . The densimeter method of mechanical analyses . Soil Science 56 : 423-431 . 1943 . | |
 | Warren Forsythe - 1975 - 240 páginas
CODONI , M. R. Density of soil suspensions and the use of densimeters for mechanical analyses . Soil Science 56 : 7-18 . The densimeter method of mechanical analyses . Soil Science 56 : 423-431 . 1943 . 7 . 8. DAY , P. R. Physical basis ... | |
 | 64 páginas
... 1995-2002 * TECHNICAL AREA Watershed Management THEMATIC LINES a ) b ) e ) Watershed rehabilitation planning Methods for proper land use Hydrology modulation Soil and water conservation practices Socioeconomic analysis and outreach ... | |
| |
