Browsing Boletines by Title
Now showing items 105-124 of 130
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Significance of the presence of potassium bearing feldspars and micas in some soils of Puerto Rico
(2010-05-05)This bulletin updates and compiles published and unpublished information on the feldspar content, especially the K-bearing ones, of soils of Puerto Rico as they fit into the U.S. Soil Taxonomy. -
Significance of the presence of potassium bearing feldspars and micas in some soils of Puerto Rico
(University of Puerto Rico, Mayagüez Campus, Agricultural Experiment Station, 1981-03)According to Meyerhoff the island of PR can be broadly divided into five main formations: 1).Quarternary and Recent uncosolidated deposits occuring mainly along the northeast and southern coasts; 2) Tertiary limestone ... -
Soil studies in Lajas Valley
(2010-05-05) -
Soil studies in the projected Coamo irrigation area
(2010-06-04) -
Soybean trials in Puerto Rico
(2010-05-05) -
Taxonomic classification of the soils of Puerto Rico, 1975
(2010-05-03)En este trabajo se describe un nuevo sistema de clasificación de suelos conocido como U.S. Soil Taxonomy y su nomenclatura tal y como aplica a Puerto Rico. Además, se incluyen definiciones para que se facilite entener el ... -
The management and utilization of the forage crops of Puerto Rico
(2010-06-04)En este boletín se presentan datos obtenidos mediante observaciones e investigaciones en Puerto Rico, relacionados con el manejo y utilización de las yerbas forrajeras más importantes del país, y las recomendaciones ... -
The method of foliar diagnosis as applied to sugarcane
(2010-06-04) -
The present status of economic entomology in Puerto Rico
(2010-05-04) -
The role of crop and industrial residues on erosion control, properties and productivity of some major soils of Puerto Rico
(2010-05-05)En este trabajo se ofrecen datos de una serie de experimentos de campo, invernadero y laboratorio sobre el efecto de los residuos de cosechas e industriales en el control de la erosión, las propiedades y la productividad ... -
Updated taxonomic classification of the soils of Puerto Rico
(2010-05-04)This report updates the information provided in Bulletin 245, without repetition. Details of the system and nomenclature remain unchanged and are not given herewith. -
Updated taxonomic classification of the soils of Puerto Rico, 1994
(2010-05-05)This report presents the current classification of the soils of Puerto Rico and reflects additional field and laboratory work conducted between January 1977 and August 1994 and recent revisions of the soil taxonomy.