17 documents satisfont la requête. Vérifiez les termes recherchés ou relancez la recherche sur le texte intégral
Soil management CRSP : steeplands in the Dominican Republic with a proposal for collaboration in : humid tropics in Peru, acid savannas in Colombia and Brazil
Auteur(s) : University of Florida. Institute of Food and Agricultural Sciences. University of Florida. Center for Latin American Studies. University of Florida. Center for Tropical Agriculture.
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Soil science in the Caribbean
Auteur(s) : Soil Science Conference, (1950
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Aplicación de la tecnologia (SIG) en la cartografia
Auteur(s) : Hernandez J., Alberto Universidad Veracruzana Instituto de Suelos (Academia de Ciencias de Cuba)
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Factors affecting fertility of selected brown sand soils of Guyana
Auteur(s) : Downer, Alfred Victor, 1937-
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Estudio de la región de Upala
Auteur(s) : Instituto de Tierras y Colonización
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Rhizobium-related constraints to grain legume production in St. Kitts, West Indies
Auteur(s) : Million, Jeff B ( Jeff Bacon ), 1957- ( Dissertant ) Sartain, Jerry B. ( Thesis advisor ) Hubbell, David H. ( Thesis advisor ) Sylvia, David M. ( Reviewer ) Buhr, Kenneth L. ( Reviewer ) Fry, Jack L. ( Reviewer )
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Sondeo report ; Las Cuevas Watershed, Dominican Republic
Auteur(s) : Hildebrand, Peter E. Farming Systems Support Project
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Soil survey of Mayaguez area of western Puerto Rico (Area de Mayagüez Puerto Rico)
Auteur(s) : Gierbolini, Roberto E United States -- Soil Conservation Service University of Puerto Rico (Río Piedras Campus) -- College of Agriculture and Mechanic Arts
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Guatemalan small farmer Partager

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Muestreo de suelos e interpretación de resultados de análisis ; Evaluación de la fertilidad de suelos y fertilización del cultivo de maíz para la región VI de Guatemala
Auteur(s) : Estrada, Luis A Del Valle, Ricardo Instituto de Ciencia y Tecnología Agrícolas (Guatemala)
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Copy of resignation letter from John F. Stevens to President Theodore Roosevelt
Auteur(s) : Stevens, John F. (John Frank), 1853-1943 ( Author, Primary )
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Study of soil characteristics as developed in a grass mulch system of vegetable cultivation in Jamaica
Auteur(s) : Davis, Malcolm S
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Some Notes on Deep Deformation (Circular) Slides
Auteur(s) : MacDonald, Donald F. ( Author, Primary )
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Estudio fisiológico de unos tipos predominantes de tierras de Guatemala
Auteur(s) : Deger, Erwin Conradin, d. 1941 Pensabene, Augusto
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Soil survey of San Juan area of Puerto Rico
Auteur(s) : Boccheciamp, Rafael A United States -- Soil Conservation Service Puerto Rico -- Federal Experiment Station, Mayaquez
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El Salvador ; Uso de la tierra ; Land use
Auteur(s) : Alliance for Progress
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