{"id":131626,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/persistencia-y-prediccion-del-comportamiento-en-el-suelo-de-herbicidas-de-cultivos-herbaceos\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"persistencia-y-prediccion-del-comportamiento-en-el-suelo-de-herbicidas-de-cultivos-herbaceos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/persistencia-y-prediccion-del-comportamiento-en-el-suelo-de-herbicidas-de-cultivos-herbaceos\/","title":{"rendered":"Persistencia y prediccion del comportamiento en el suelo de herbicidas de cultivos herbaceos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Yolanda Lechon Perez <\/strong><\/h2>\n<p>Se estudia el comportamiento de los herbicidas clortoluron, isoproturon, metribuzina y terbutrina.Se determinan los coeficientes de adsorcion de los herbicidas en diferentes suelos utilizando tres metodos experimentales. El herbicida mas adsorbido fue la terbutrina, seguida del clortoluron, el isoproturon y la metribuzina. Se obtuvieron buenos ajustes a la ecuacion de freundlich. Se determinaron constantes de desorcion de muestras con residuos envejecidos de clortoluron obteniendose un importante incremento de la adsorcion.  se determinaron las constantes de degradacion de los herbicidas en diferentes suelos a distintas condiciones de humedad y temperatura ensayando distintos sistemas de incubacion. La cinetica de reaccion fue de primer orden y el isoproturon fue el herbicida que menos persiste seguido de la terbutrina, el clortoluron y la metribuzina.  se realizaron tratamientos con estos herbicidas en parcelas experimentales y se realizo un muestreo amplio de fincas de cereal tratadas con clortoluron y terbutrina. El isoproturon fue el compuesto que persistio menos seguido de la metribuzina, la terbutrina y el clortoluron.  se obtuvo en todos los casos lixiviacion a los segundos diez centimetros y el isoproturon resulto ser el compuesto mas lixiviable.  se aplicaron dos modelos de simulacion deterministas, uno mecanicista (leachp) y otro funcional (leacha). No existen diferencias importantes en las simulaciones realizadas con ambos modelos pero cuando existen, el modelo funcional simula una mayor persistencia y una menor lixiviacion que el modelo mecanicista. La simulacion de los contenidos en la primera capa fue bastante precisa pero no se simulo el patron de lixiviacion observado en campo.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Persistencia y prediccion del comportamiento en el suelo de herbicidas de cultivos herbaceos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Persistencia y prediccion del comportamiento en el suelo de herbicidas de cultivos herbaceos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Yolanda Lechon Perez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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> Tadeo Lluch Jos\u00e9 Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Mateo Sagasta Azpeitia Eloy <\/li>\n<li> Carrasco Dorrien Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<li>M  Carmen Cartagena Causap\u00e9 (vocal)<\/li>\n<li>Jos\u00e9 Antonio D\u00edez L\u00f3pez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Yolanda Lechon Perez Se estudia el comportamiento de los herbicidas clortoluron, isoproturon, metribuzina y terbutrina.Se determinan los [&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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