Añadido Recientemente
-
An assessment of the shade and ground cover influence on the mitigation of water‑driven soil erosion in a coffee agroforestry system
(2024-04-08)Coffee cultivation under agroforestry systems is one of the main agricultural activities in Central America, but climate change is putting its sustainability at risk. Rainfall erosivity has worsened, thus driving soil ... -
Evolution of Approaches on Water Resources Management and Integrated Watershed Management Planning: Complement, Synergies, and the Way Forward
Several approaches were used since the beginning of times to do water management. Relatively recent is the integrated water resources management (IWRM) proposed as an intent to bring a standard approach which is currently ... -
Efecto de tres fungicidas sobre la germinación de semilla infectada de frijol (Phaseolus vulgaris).
(IICA, San José (Costa Rica), 1976-10-01)Semilla de baja calidad de frijol (cv "Tuí") se trató con los fungicidas captan, thiram y benomyl a una dosis de 50, 75 y 50 mg del producto comercial por 40g de semilla, respectivamente. Esta semilla infectada con un alto ... -
Rural Technologies and Practices in Ancient Peru
(Springer Nature, 2025-02)This chapter will address two of the most representative technolog-ical works related to water management in Peru. The Cumbemayo Canal and the AMUNAS. The first one is a pre-Columbian hydraulic work located in the trop-ical ... -
Epidemiología de algunas enfermedades foliares de la yuca en diferentes sistemas de cultivo, 1: Mildiu polvoroso y roña
(IICA, San José (Costa Rica), 1976-10-01)A study was conducted at Turrialba, Costa Rica to determine the incidence, severity and progress curves of mildew (Oidrum manihotis P. Hem.) and scab (Sphaceloma sp.) in cassava cultivated under different systems. The ... -
The Effect of Crises on Fiscal and Political Re-Centralization
(SAGE Publications, 2024-03-27)Economic stability plays a crucial role in any fiscal and political decentralization process. In the face of financial and economic shocks, when revenues and expenditures are reduced, countries may decide to gather resources ... -
Natural selection for drought resistance in Pinus caribaea Morelet
(1976-10-01)Se ha especulado que Pinus caribea var caribea es más resistente a la sequía que P. caribea var hondurensis. La diferencia morfológica entre los arbolitos de las tres variedades de P. caribea, más la mayor supervivencia ... -
Bright but flickering lights of sustainable, community-based groundwater supply and management: ASADAS in Costa Rica
(IOP Publishing, 2025-04-08)Este artículo trata la gestión del agua subterránea, y presenta cómo encaminarla a ser más equitativa y eficaz y cómo organizaciones como las ASADAS en Costa Rica, tienen una gran parte en este proceso en zonas rurales. ... -
Composición química y valor nutritivo de algunas leguminosas de grano
(1976-11-01)Este trabajo tiene como finalidad evaluar química y nutricionalmente quince cultivares de leguminosas de grano: 6 de frijol común (Phaseolus vulgaris), 7 de frijol de costa (Vigna sinensis), 1 de gandul (Cajanus cajan) y ... -
Producao de metabólitos tóxicos por Fusarium oxysporum f. passiflorae causando murcha de plantulas de maracuja (Passiflora edulis Sims.)
(IICA, San José (Costa Rica), 1976-10-01)An isolate of Fusarium oxysporum f. passiflore produced toxin(s) "in vitro" which caused willing of seedlings of the toxin(s) occurred after 16 days of incubation. One-tenth dilution in water did not affect its toxicity. ...
RSS 1.0