{"id":18450,"date":"2018-03-09T09:06:59","date_gmt":"2018-03-09T09:06:59","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/control-de-malas-hierbas-en-tabaco-nicotiana-tabacum-l-mediante-la-tecnica-de-dosis-reducidas-de-herbicidas-en-la-comarca-del-bierzo\/"},"modified":"2018-03-09T09:06:59","modified_gmt":"2018-03-09T09:06:59","slug":"control-de-malas-hierbas-en-tabaco-nicotiana-tabacum-l-mediante-la-tecnica-de-dosis-reducidas-de-herbicidas-en-la-comarca-del-bierzo","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/control-de-malas-hierbas-en-tabaco-nicotiana-tabacum-l-mediante-la-tecnica-de-dosis-reducidas-de-herbicidas-en-la-comarca-del-bierzo\/","title":{"rendered":"Control de malas hierbas en tabaco (nicotiana tabacum l.), mediante la t\u00e9cnica de dosis reducidas de herbicidas, en la comarca del bierzo"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Lozano Garrido Jes\u00fas Enrique <\/strong><\/h2>\n<p>En el cultivo del tabaco, las malas hierbas, interfieren en su desarrollo, causando una disminuci\u00f3n del rendimiento de la cosecha, al sustraer parte de los elementos nutritivos disponibles en el suelo, ser hu\u00e9spedes de par\u00e1sitos y enfermedades que se propagan posteriormente al tabaco y dificultar la recolecci\u00f3n originando roturas en las hojas. Adem\u00e1s, la incorrecta utilizaci\u00f3n de los herbicidas debido en gran medida al desconocimiento de la flora invasora presente en las parcelas, est\u00e1 causando un gran impacto ambiental y originando selecci\u00f3n de flora resistente, m\u00e1s dif\u00edcil de combatir con los herbicidas disponibles.  los objetivos son:  1,- elaboraci\u00f3n de un inventario de flora arvense que afecta al cultivo de tabaco en la comarca del bierzo.  2,- control de dicha flora mediante la t\u00e9cnica de dosis reducidas de herbicidas.  3,- reducci\u00f3n de costes en los tratamientos.  se efectu\u00f3 una prospecci\u00f3n de la zona tabaquera en los a\u00f1os 1995 y 1996, visit\u00e1ndose parcelas en los t\u00e9rminos municipales de carracedelo, quil\u00f3s, cacabelos y camponaraya, donde se concentra m\u00e1s del 90% de la producci\u00f3n de tabaco, para determinar que especies tienen mayor incidencia en el cultivo.  durante los a\u00f1os 1997, 1998 y 1999 se realizaron las experiencias de campo para evaluar la t\u00e9cnica de dosis reducidas de herbicidas, utilizando mezclas de nueve materias activas. Los tratamientos se realizaron en post-trasplante del cultivo. Se utiliza el m\u00e9todo estad\u00edstico de bloques completos al azar, con parcelas testigo para facilitar las observaciones sobre la eficacia de las distintas mezclas herbicidas, analiz\u00e1ndose los resultados con arreglo a dos modelos, que var\u00edan en funci\u00f3n del c\u00e1lculo de la eficacia del tratamiento.  las especies adventicias con mayor incidencia en el cultivo son: amaranthus hybridus l., Stellaria media (l.) Vill., Chenopodium album l., Capsella bursa-pastoris moench., Arrhenatherum elatius subsp., Bulbosum (willd<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Control de malas hierbas en tabaco (nicotiana tabacum l.), mediante la t\u00e9cnica de dosis reducidas de herbicidas, en la comarca del bierzo<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Control de malas hierbas en tabaco (nicotiana tabacum l.), mediante la t\u00e9cnica de dosis reducidas de herbicidas, en la comarca del bierzo <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Lozano Garrido Jes\u00fas Enrique <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 15\/07\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Villar\u00edas Moradillo Jos\u00e9 Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pedro Urbano terr\u00f3n <\/li>\n<li>Carlos Zaragoza larios (vocal)<\/li>\n<li>angel Fombellida villafruela (vocal)<\/li>\n<li>Jaime Costa vilamajo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lozano Garrido Jes\u00fas Enrique En el cultivo del tabaco, las malas hierbas, interfieren en su desarrollo, causando [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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