1096
10
20655
-
http://socictopen.socict.org/files/original/cc796770cca208d63b991212e2edc3f0.pdf
633cda638d97d3b0708fc618a04d5af9
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Infidelity of SARS-CoV Nsp14-exonuclease mutant virus replication is revealed by complete genome sequencing.
Creator
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Ralph S. Baric, Xiao-Tao Lü, Mark R. Denison, Timothy B. Stockwell, Kelvin Li, Rachel L. Graham, Rebecca A Halpin, David J Spiro, Michelle M Becker, Eli Venter, Lance D Eckerle, Sana Scherbakova
Description
An account of the resource
Most RNA viruses lack the mechanisms to recognize and correct mutations that arise during genome replication, resulting in quasispecies diversity that is required for pathogenesis and adaptation. However, it is not known how viruses encoding large viral RNA genomes such as the Coronaviridae (26 to 32 kb) balance the requirements for genome stability and quasispecies diversity. Further, the limits of replication infidelity during replication of large RNA genomes and how decreased fidelity impacts virus fitness over time are not known. Our previous work demonstrated that genetic inactivation of the coronavirus exoribonuclease (ExoN) in nonstructural protein 14 (nsp14) of murine hepatitis virus results in a 15-fold decrease in replication fidelity. However, it is not known whether nsp14-ExoN is required for replication fidelity of all coronaviruses, nor the impact of decreased fidelity on genome diversity and fitness during replication and passage. We report here the engineering and recovery of nsp14-ExoN mutant viruses of severe acute respiratory syndrome coronavirus (SARS-CoV) that have stable growth defects and demonstrate a 21-fold increase in mutation frequency during replication in culture. Analysis of complete genome sequences from SARS-ExoN mutant viral clones revealed unique mutation sets in every genome examined from the same round of replication and a total of 100 unique mutations across the genome. Using novel bioinformatic tools and deep sequencing across the full-length genome following 10 population passages in vitro, we demonstrate retention of ExoN mutations and continued increased diversity and mutational load compared to wild-type SARS-CoV. The results define a novel genetic and bioinformatics model for introduction and identification of multi-allelic mutations in replication competent viruses that will be powerful tools for testing the effects of decreased fidelity and increased quasispecies diversity on viral replication, pathogenesis, and evolution.
Date
A point or period of time associated with an event in the lifecycle of the resource
2010
Identifier
An unambiguous reference to the resource within a given context
DOI: 10.1371/journal.ppat.1000896
Source
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PLoS Pathogens
Publisher
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Public Library of Science (PLoS)
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Biology (General), Immunologic diseases. Allergy
-
http://socictopen.socict.org/files/original/a2b30f38c240ade48155ad8d5dbc0dd9.pdf
73355d61e902442aa92140cb4ca58902
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Inflammation and Vascular Injury as the Basis of COVID-19 Skin Changes: Preliminary Analysis of 23 Patients from the Literature [Letter].
Creator
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Alin Laurentiu Tatu, Thomas Nadasdy, Florin Ciprian Bujoreanu
Date
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2021
Identifier
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10.2147/CCID.S305847
Source
A related resource from which the described resource is derived
Clinical, cosmetic and investigational dermatology
-
http://socictopen.socict.org/files/original/abd4273e5c213790bd49c877fb12ca1d.pdf
bd01f103b576b24de77a75a19631e81f
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Inflammatory Cytokine: IL-17A Signaling Pathway in Patients Present with COVID-19 and Current Treatment Strategy
Creator
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Shibabaw T
Description
An account of the resource
Tewodros Shibabaw Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, EthiopiaCorrespondence: Tewodros ShibabawDepartment of Biochemistry, School of Medicine, University of Gondar, P.O. Box 196, Gondar, EthiopiaTel +251910162171Email shitewodros@gmail.comAbstract: Coronavirus disease 2019 (COVID-19) is a globally communicable public health disease caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV-2). Eradication of COVID-19 appears practically impossible but, therefore, more effective pharmacotherapy is needed. The deteriorated clinical presentation of patients with COVID-19 is mainly associated with hypercytokinemia due to notoriously elevated pro-inflammatory cytokines such as interleukin (IL)-1B, IL-6, IL-8, IL-17, granulocyte-macrophage colony-stimulating factor (GM-CSF), granulocyte colony-stimulating factor (G-CSF), interferon-γ-inducible protein (IP10), monocyte chemoattractant protein (MCP1), and tumor necrosis factor-α (TNFα), and is usually responsible for cytokine release syndrome. In the cytokine storm, up-regulation of T-helper 17 cell cytokine IL-17A, and maybe also IL-17F, is mostly responsible for the immunopathology of COVID-19 and acute respiratory distress syndrome. Herein, I meticulously review the exuberant polarization mechanism of naïve CD4+ T cells toward Th17 cells in response to SARS-CoV-2 infection and its associated immunopathological sequelae. I also, propose, for clinical benefit, targeting IL-17A signaling and the synergic inflammatory cytokine IL-6 to manage COVID-19 patients, particularly those presenting with cytokine storm syndrome.Keywords: IL-17A, inflammation, immunopathology, COVID-19, cytokine storm, Th17, IL-6, ARDS
Date
A point or period of time associated with an event in the lifecycle of the resource
2020
Subject
The topic of the resource
inflammation, covid-19, ARDS, cytokine storm, Immunopathology, IL-6, TH17, IL-17A
Source
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Biotemas
Publisher
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Universidade Federal de Santa Catarina
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Pathology
-
http://socictopen.socict.org/files/original/378aec98d95b07e35530725b7cb82670.pdf
c764131e0b87eb838a7924fcd6a57a03
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Inflammatory cytokines, T lymphocyte subsets, and ritonavir involved in liver injury of COVID-19 patients.
Creator
An entity primarily responsible for making the resource
Shengtao Liao, Ke Zhan, Li Gan, Yang Bai, Jinfang Li, Guodan Yuan, Ying Cai, An Zhang, Song He, Zhechuan Mei
Date
A point or period of time associated with an event in the lifecycle of the resource
2020
Identifier
An unambiguous reference to the resource within a given context
10.1038/s41392-020-00363-9
Source
A related resource from which the described resource is derived
Signal transduction and targeted therapy
-
http://socictopen.socict.org/files/original/6e3613c29f2a6bff449168aeb82b2a0f.pdf
8cfca847cffb5177ed45b359a6759b00
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Inflammatory stress in SARS-COV-2 associated Acute Kidney Injury.
Creator
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Junzhe Chen, Wenbiao Wang, Ying Tang, Xiao-Ru Huang, Xueqing Yu, Hui-Yao Lan
Description
An account of the resource
Increasing clinical evidence shows that acute kidney injury (AKI) is a common and severe complication in critically ill COVID-19 patients. The older age, the severity of COVID-19 infection, the ethnicity, and the history of smoking, diabetes, hypertension, and cardiovascular disease are the risk factor for AKI in COVID-19 patients. Of them, inflammation may be a key player in the pathogenesis of AKI in patients with COVID-19. It is highly possible that SARS-COV-2 infection may trigger the activation of multiple inflammatory pathways including angiotensin II, cytokine storm such as interleukin-6 (IL-6), C-reactive protein (CRP), TGF-β signaling, complement activation, and lung-kidney crosstalk to cause AKI. Thus, treatments by targeting these inflammatory molecules and pathways with a monoclonal antibody against IL-6 (Tocilizumab), C3 inhibitor AMY-101, anti-C5 antibody, anti-TGF-β OT-101, and the use of CRRT in critically ill patients may represent as novel and specific therapies for AKI in COVID-19 patients.
Date
A point or period of time associated with an event in the lifecycle of the resource
2021
Subject
The topic of the resource
Cytokines, inflammation, covid-19, mechanisms, AKI
Identifier
An unambiguous reference to the resource within a given context
10.7150/ijbs.58791
Source
A related resource from which the described resource is derived
International journal of biological sciences
-
http://socictopen.socict.org/files/original/1ba4895a406bb72e2860963defa11885.pdf
1c0df3a650da820457f324004e47c131
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Influence of Absolute Humidity, Temperature and Population Density on COVID-19 Spread and Decay Durations: Multi-Prefecture Study in Japan
Creator
An entity primarily responsible for making the resource
Sachiko Kodera, Jose Gomez-Tames, Akimasa Hirata, Essam A. Rashed
Description
An account of the resource
This study analyzed the spread and decay durations of the COVID-19 pandemic in different prefectures of Japan. During the pandemic, affordable healthcare was widely available in Japan and the medical system did not suffer a collapse, making accurate comparisons between prefectures possible. For the 16 prefectures included in this study that had daily maximum confirmed cases exceeding ten, the number of daily confirmed cases follow bell-shape or log-normal distribution in most prefectures. A good correlation was observed between the spread and decay durations. However, some exceptions were observed in areas where travelers returned from foreign countries, which were defined as the origins of infection clusters. Excluding these prefectures, the population density was shown to be a major factor, affecting the spread and decay patterns, with R2 = 0.39 (p
Date
A point or period of time associated with an event in the lifecycle of the resource
2020
Subject
The topic of the resource
covid-19, population density, temperature, absolute humidity, spread and decay durations
Identifier
An unambiguous reference to the resource within a given context
10.3390/ijerph17155354
Source
A related resource from which the described resource is derived
Epidemiology and Health
Publisher
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Korean Society of Epidemiology
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Medicine
-
http://socictopen.socict.org/files/original/f602359e7188f68830abb3816fdaa147.pdf
9a7175cb2026fe90dbd46f8a9aed1f46
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Coronavirus
Description
An account of the resource
Dominio científico: Coronavirus
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Influence of anonymous HIV testing on national HIV surveillance in the Republic of Korea (2000 to 2015): a retrospective analysis
Creator
An entity primarily responsible for making the resource
Mee-Kyung Kee, Myeongsu Yoo, Jaehyung Seong, Ju Yeon Choi, Myung Guk Han, Joo-Shil Lee, Youngmee Jee, Kisoon Kim, Sung Soon Kim, Chun Kang
Description
An account of the resource
Abstract Background Owing to the continuous increase in the number of new human immunodeficiency virus (HIV) infection in Korea, public health centers (PHCs) have performed anonymous tests since 1989. No study has examined the patterns of anonymous HIV testing performed at PHCs and the characteristics of HIV infection detected in those tests. We aimed to assess the influence of anonymous HIV testing on Korea’s national HIV surveillance. Methods HIV screening test data from 253 PHCs over a 16-year period were classified into 13 groups based on reason for testing. For anonymous HIV test takers (Anonymous), the HIV positivity per 10,000 tests was calculated, as repetitions could not be distinguished. Those with suspected HIV infection voluntarily underwent HIV testing and revealed their identity (Suspected). HIV prevalence was calculated as the number of HIV-positive persons per 10,000 test takers. Analyses were performed using chi-square and Cochran-Armitage trend test with SAS 9.4. Results Approximately 400,000 HIV screening tests were performed at PHCs annually, which remained unchanged in the past 10 years. The proportion of anonymous testing increased from
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Subject
The topic of the resource
HIV prevalence, Anonymous test, public health center, Korea
Identifier
An unambiguous reference to the resource within a given context
DOI: 10.1186/s12889-019-7866-y
Source
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BMC Public Health
Publisher
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BMC
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Public aspects of medicine
Language
A language of the resource
EN
-
http://socictopen.socict.org/files/original/93e4afd968bcd04e8c206a906fe45a79.pdf
2acab5f73d75aa11d3d74c8d913ef058
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Influence of Boron, Tungsten and Molybdenum Modifiers on Zirconia Based Pt Catalyst for Glycerol Valorization
Creator
An entity primarily responsible for making the resource
Manuel Checa, Vicente Montes, Jesús Hidalgo-Carrillo, Alberto Marinas, Francisco J. Urbano
Description
An account of the resource
The influence of boron, tungsten and molybdenum modifiers on zirconia-based Pt catalyst was studied for glycerol valorization. Zirconia modified supports were prepared by impregnation of ZrO2 with either boric, silicontungstic or phosphomolybdic acids to obtain supports with enhanced Brönsted acidic properties. The modified supports were subsequently impregnated with chloroplatinic acid to obtain Pt-based catalysts. Pt incorporation resulted in the increase in Lewis acidity of the solids, being more significant for the Pt//W/ZrO2 catalyst. Reduced Pt catalysts were tested for the liquid-phase glycerol hydrogenolysis, observing a synergistic effect between catalyst acid sites and metal function that proved to be crucial in glycerol hydrogenolysis. The Pt//W/ZrO2 catalyst was the most active catalyst in this reaction, being the only leading to 1,3-PDO (45% sel., 160 °C) while Pt//Mo/ZrO2 is the best option for 1,2-PDO (49% sel., 180 °C). Reusability studies carried out for Pt//W/ZrO2 showed that catalytic activity dropped after the first use, remaining constant for the second and subsequent ones. Selectivity to reaction products also changes during reuses. Therefore, the selectivity to 1,2 PDO increases in the first reuse in detriment to the selectivity to n-propanol whereas the selectivity to 1,3-PDO remains constant along the uses. This behavior could be associated to the lixiviation of W species and/or catalyst fouling during reaction runs.
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Subject
The topic of the resource
HPAs, Pt catalysts, acid zirconia, catalysts deactivation, catalysts stability, glycerol hydrogenolysis, glycerol valorization
Identifier
An unambiguous reference to the resource within a given context
10.3390/nano9040509
Source
A related resource from which the described resource is derived
Nanomaterials
Publisher
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MDPI AG
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Chemistry
Relation
A related resource
<a href="https://www.mdpi.com/2079-4991/9/4/509" target="_blank" rel="noreferrer noopener">https://www.mdpi.com/2079-4991/9/4/509</a>
-
http://socictopen.socict.org/files/original/53aa883e2b8313b90d19046f35255d1c.pdf
955e692ddf3cfec81a4ce9e5b61d099f
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Influence of climatic variables on the yield of transient crops in the province in Los Ríos, Ecuador
Creator
An entity primarily responsible for making the resource
Betty Beatriz González Osorio, Roberto Barragán Monrroy, Luis Simba Ochoa, Marisol Rivero Herrada
Description
An account of the resource
e objective of this study was to determine the changes andeffects of climate variables on transient crop yields in the province of Los Ríos, Ecuador. Temperature and precipitation were analyzed based on historicalseries from 1981-2015, current series (2016-2019) and projections (2019-2050). ArcGis 10,3soware was used to measure the climatic variability of these parameters. Vulnerability analysisconsidered production under the effect of weather conditions. Results indicate that the averagemulti-year temperature variation is 25,86 °C and the precipitation is 2 202.83 mm, what favoredthe production of 5 225 kg ha -1 of maize, 3 076.8 kg ha -1 rice and 1 147 kg ha -1 of soybeans.According to climate projections for 2016-2050, an increase of 1.07 ° C in the temperaturevariable and decrease in precipitation (303 mm) which will generate a decrease in crop yields in29; 27 and 24 % for corn, rice and soy respectively.
Date
A point or period of time associated with an event in the lifecycle of the resource
2020
Subject
The topic of the resource
Adaptation, Climatic changes, agricultural production
Source
A related resource from which the described resource is derived
Centro Agrícola
Publisher
An entity responsible for making the resource available
Universidad Central Marta Abreu" de Las Villas"
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture (General), Plant ecology
Relation
A related resource
<a href="http://cagricola.uclv.edu.cu/descargas/pdf/V47-Numero_4/cag07420.pdf" target="_blank" rel="noreferrer noopener">http://cagricola.uclv.edu.cu/descargas/pdf/V47-Numero_4/cag07420.pdf</a>
-
http://socictopen.socict.org/files/original/85a553e1fd88e3d72008ce444015ed4b.pdf
257f1584450e1b6624964d715ac540d1
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Influence of Conservation Tillage and Soil Water Content on Crop Yield in Dryland Compacted Alfisol of Central Chile Influencia de la Labranza de Conservación y el Contenido de Agua sobre el Rendimiento del Cultivo en un Alfisol compactado del Secano Central de Chile
Creator
An entity primarily responsible for making the resource
Natalia Valderrama V, Alejandro del Pozo, Ingrid Martinez G, Carlos Ovalle, Hamil Uribe, Christian Prat, Marco Sandoval, Fernando Fernández, Erick Zagal
Description
An account of the resource
Chilean dryland areas of the Mediterranean climate region are characterized by highly degraded and compacted soils, which require the use of conservation tillage systems to mitigate water erosion as well as to improve soil water storage. An oat (Avena sativa L. cv. Supernova-INIA) - wheat (Triticum aestivum L. cv. Pandora-INIA) crop rotation was established under the following conservation systems: no tillage (Nt), Nt + contour plowing (Nt+Cp), Nt + barrier hedge (Nt+Bh), and Nt + subsoiling (Nt+Sb), compared to conventional tillage (Ct) to evaluate their influence on soil water content (SWC) in the profile (10 to 110 cm depth), the soil compaction and their interaction with the crop yield. Experimental plots were established in 2007 and lasted 3 yr till 2009 in a compacted Alfisol. At the end of the growing seasons, SWC was reduced by 44 to 51% in conservation tillage systems and 60% in Ct. Soil water content had a significant (p < 0.05) interaction with tillage system and depth; Nt+Sb showed lower SWC between 10 to 30 cm, but higher and similar to the rest between 50 to 110 cm except for Ct. Although, SWC was higher in conservation tillage systems, the high values on soil compaction affected yield. No tillage + subsoiling reduced soil compaction and had a significant increment of grain yield (similar to Ct in seasons 2008 and 2009). These findings show us that the choice of conservation tillage in compacted soils of the Mediterranean region needs to improve soil structure to obtain higher yields and increment SWC.En Chile, las zonas de clima mediterráneo se caracterizan por suelos altamente degradados y compactados por erosión, lo que requiere el uso de sistemas de labranza conservacionista para mitigar la erosión hídrica, así como incrementar el contenido de agua en el suelo. Se evaluó una rotación avena (Avena sativa L. cv. Supernova-INIA) - trigo (Triticum aestivum L. cv. Pandora-INIA) establecida bajo los siguientes sistemas conservacionistas: cero labranza (Nt), Nt + curvas de nivel (Nt+Cp), Nt + franjas vivas (Nt+Bh) y Nt + subsolado (Nt+Sb), las que fueron comparadas al sistema de labranza convencional (Ct), para evaluar su influencia en el contenido de agua en el suelo (SWC) en el perfil (10 a 110 cm profundidad), la compactación del suelo y su interacción con el rendimiento del cultivo. Las parcelas experimentales fueron establecidas 3 años seguidos (2007 al 2009) en un Alfisol compactado. Al final de la temporada, el SWC disminuyó 44 a 51% en los sistemas conservacionistas y 60% en el sistema convencional. El sistema de labranza y la profundidad tuvieron un efecto significativo (p < 0.05) en el SWC; Nt+Sb presentó un menor contenido de agua entre los 10 y 30 cm y similar al resto de los sistemas conservacionistas entre los 50 y 110 cm, sin embargo, superior a Ct. Aunque los sistemas conservacionistas mostraron un mayor SWC, la alta compactación afectó los rendimientos. Cero labranza + subsolado redujo la compactación del suelo e incrementó significativamente el rendimiento en grano (similar a Ct en las temporadas 2008 y 2009). Estos resultados nos muestran que la elección de un sistema conservacionista en suelos compactados de la región mediterránea, requiere mejorar la estructura del suelo para obtener mejores rendimientos e incrementar el contenido de agua en el suelo.
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
Subject
The topic of the resource
Avena, Water erosion, erosión hídrica, neutron probe, neutrómetro, oat, penetrometer resistance, resistencia a la penetración, subsoiling, subsolado, trigo, wheat
Source
A related resource from which the described resource is derived
Chilean Journal of Agricultural Research
Publisher
An entity responsible for making the resource available
Instituto de Investigaciones Agropecuarias, INIA
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Agriculture, Environmental sciences
Relation
A related resource
<a href="http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400018" target="_blank" rel="noreferrer noopener">http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400018</a>