Title Input Editor

Description Input Editor

UPR Adm Central, Calle Flamboyán Jardín Botánico Sur, Río Piedras, PR (787) 250 - 0000 repositorio.upr@upr.edu

Biblioteca UPR
  • Start
  • About Us
    • Institutional Repository
    • Self-archiving
    • Rights, Licenses and Certifications
    • Staff
  • Libraries
    • UPR libraries
    • Catalog
  • Services
    • Library Directors
    • UPR repository
    • UPR patents
  • Help
    • Guides
  • Contact us
    • Contact Us
  • Start
  • About Us
    • Institutional Repository
    • Self-archiving
    • Rights, Licenses and Certifications
    • Staff
  • Libraries
    • UPR libraries
    • Catalog
  • Services
    • Library Directors
    • UPR repository
    • UPR patents
  • Help
    • Guides
  • Contact us
    • Contact Us
UPR Adm Central, Calle Flamboyán Jardín Botánico Sur, Río Piedras, PR(787) 250 - 0000repositorio.upr@upr.edu
Search 
  •   UPR Repository
  • University of Puerto Rico
  • Theses & Dissertations
  • Search
  •   UPR Repository
  • University of Puerto Rico
  • Theses & Dissertations
  • Search
    • English
    • Español
  • English 
    • English
    • Español
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Search

Show Advanced FiltersHide Advanced Filters

Filters

Use filters to refine the search results.

Now showing items 1-10 of 55

  • Sort Options:
  • Relevance
  • Title Asc
  • Title Desc
  • Issue Date Asc
  • Issue Date Desc
  • Author Asc
  • Author Desc
  • Results Per Page:
  • 5
  • 10
  • 20
  • 40
  • 60
  • 80
  • 100
Thumbnail

Evaluación de características hortícolas de cinco líneas avanzadas de ají dulce (Capsicum chinense Jacq.) 

González-Berrocales, Kelvin E. (2018-05)
Sweet chili is the sixth most important vegetable in Puerto Rico. It is used to make “sofrito”, an important ingredient in Puerto Rican cuisine. The production of this vegetable depends on the planting of cultivars adapted ...
Thumbnail

Fijación biológica de nitrógeno y almacenamiento de carbon en agrosistemas de producción de carbono en agrosistemas de producción de café (Coffea arábica L.) en Puerto Rico 

Avilés-Vázquez, Ixia I. (2009)
Coffee agroforestry systems have been promoted because they have smaller environmental impact than sun grown coffee. The majority of shade grown coffee systems use leguminous trees capable of fixing N2 from the atmosphere, ...
Thumbnail

Organic sweet pepper yield and soil microbial communities as afected by a commercial organic fertilizer and sunn hemp as a cover crop in Puerto Rico 

Negrete-Aveiga, Ana M. (2013)
Sunn hemp (Crotalaria juncea) is a legume cover crop that produces large amounts of biomass which, combined with its relatively high nitrogen (N) content and N-fixing capacity, can potentially offset N fertilizer needs by ...
Thumbnail

Consumo voluntario y digestibilidad del heno de pasto pajón (Diachanthium annulatum) tratado con un complejo enzimático y uno nitrogenado 

Caridad-del Rosario, Joaquín (2012)
Two experiments were conducted to determine if the chemical composition (CC), in vivo voluntary intake (VI) and digestibility in vivo and in situ degradability of mature Bluestem grass hay (BGH) (Dichanthium annulatum), ...
Thumbnail

Rendimiento de materia seca y características fermentativas de ensilajes de maíz ( Zea mays L.) Asociados con leguminosas anuales 

Zavala-Jerez, David E. (2011)
Corn (Zea mays L) is an ideal crop for silage due to its high levels of fermentable carbohydrates, but its major limitation for use in human and animal feeding is its low crude protein concentration (CP). An alternative ...
Thumbnail

Potencial productivo de Crotalaria Juncea CV. Tropic Suns en agroecosistemas de Puerto Rico 

Santos-Vargas, Ana D. (2010)
Sunn hemp (Crotalaria juncea L.) is a multipurpose legume of fast growth and high N2 fixation ability, thus justifying its use on degraded soils in the tropic to improve their fertility. However, there is limited information ...
Thumbnail

Restorative effects of combined sustainable practices on the biological, physical and chemical properties of a soil and crop productivity 

Pagán-Roig, Ian C. (2013)
Unsuitable agricultural practices have exacerbated worldwide soil degradation, thus limiting food production. There is a need to develop and better understand the effect of sustainable production practices that have the ...
Thumbnail

Validación del modelo de simulación para el rastreo de nutrientes (ntt) a nivel de finca en una siembra de plátano en Salinas Puerto Rico 

Carmona Ortega, Fabián (2021-07-02)
A field study was conducted to assess the ability of the Nutrient Tracking Tool (NTT) model to estimate N losses in a plantain (Musa spp. v. "maricongo") farm in the southern semi-arid coast of Puerto Rico. I evaluated ...
Thumbnail

Promoting the use of tropical legumes as cover crops in Puerto Rico 

Carlo-Acosta, Sonia I. (2009)
Degradation and misuse of agricultural land has made it necessary to identify solutions to address this serious problem. Cover crops have long been used in the tropics to increase soil and water conservation, especially ...
Thumbnail

Mejoramiento para resistencia a "zucchini yellow mosaic virus" en la calabaza (Cucurbita moschata) en Puerto Rico 

Sierra-Rivera, Luis G. (2012)
Zucchini yellow mosaic virus (ZYMV) es una enfermedad viral altamente destructiva que afecta las cucurbitáceas causando grandes pérdidas económicas en la producción agrícola. En Cucurbita moschata Duchesne, „Nigerian Local‟ ...
  • 1
  • 2
  • 3
  • 4
  • . . .
  • 6

Browse

All of UPR DIReCommunities & CollectionsTitlesThis CollectionTitles

My Account

Login

Discover

AuthorAcevedo-González, Melisa A. (1)Altema, Rose F. (1)Andújar-Amarante, Feliciano A. (1)Aponte-Zayas, Alfredo (1)Asencio-Cuello, Víctor J. (1)Avilés-Vázquez, Ixia I. (1)Buitrago-Escobar, Diana P. (1)Caridad-del Rosario, Joaquín (1)Carlo-Acosta, Sonia I. (1)Carmona Ortega, Fabián (1)... View MoreAdvisorValencia-Chin, Elide (15)Beaver, James S. (12)Wessel-Beaver, Linda (8)Román-Paoli, Elvin (3)Van-Bloem, Skip J. (3)Schröder, Eduardo C. (2)Brunner, Bryan (1)Chong, Joaquín A. (1)Estévez-de Jensen, Consuelo (1)Flores-Mangual, Mario L. (1)... View MoreKeywordsLeguminosas (6)Phaseolus vulgaris L. (3)Agroecosistemas (2)BCMV (2)BGYMV (2)Café (2)Calabaza (2)Dry forest (2)Fermentación (2)Fertilización (2)... View MoreSubject HeadingCorn--Fertilizers (2)Cover crops (2)Cover crops--Puerto Rico (2)Plantain banana--Puerto Rico (2)Animal feeding (1)Animal nutrition (1)Bacterial diseases of plants (1)Bananas -- Effect of glyphosate on (1)Bananas -- Fertilizers (1)Bananas -- Weed control (1)... View MoreTypeThesis (55)Date2020 - 2021 (3)2010 - 2019 (43)2007 - 2009 (9)Department
Department of Crops and Agro-Environmental Sciences (55)
Program
Agronomy (55)
CollectionTheses & Dissertations (55)

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors
  • Propose Content |
  • Learn More |
  • Statistics |
  • Feedback |
  • Contact Us
Biblioteca UPR

Universidad de Puerto Rico © 2021 - Todos los derechos reservados.