{"id":28707,"date":"2012-04-23T00:00:00","date_gmt":"2012-04-23T04:00:00","guid":{"rendered":"http:\/\/www.farmchemicalsinternational.com\/2012\/04\/23\/one-third-of-us-farmers-to-add-herbicide-sites-of-action-in-2012\/"},"modified":"2014-11-21T09:38:56","modified_gmt":"2014-11-21T14:38:56","slug":"one-third-of-us-farmers-to-add-herbicide-sites-of-action-in-2012","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/es\/agrochemicals\/herbicides\/one-third-of-us-farmers-to-add-herbicide-sites-of-action-in-2012\/","title":{"rendered":"Un tercio de los agricultores de EE. UU. Agregar\u00e1n sitios de acci\u00f3n de herbicidas en 2012"},"content":{"rendered":"<p>M\u00e1s de un tercio de los agricultores estadounidenses que respondieron a una encuesta realizada por BASF dijeron que planean agregar m\u00faltiples sitios de acci\u00f3n de herbicidas este a\u00f1o en respuesta a la propagaci\u00f3n de malezas resistentes al glifosato.<\/p>\n<p>M\u00e1s de 50% de los agricultores estadounidenses encuestados reconocieron la existencia de malezas resistentes al glifosato en sus campos, y muchos culparon a la resistencia de reducir los rendimientos, seg\u00fan BASF. Incluso los agricultores que no han visto resistencia al glifosato en sus campos dijeron que ajustar\u00edan sus programas de control de malezas.<\/p>\n<p>\u201cIndica que los agricultores comprenden que los desaf\u00edos actuales del control de malezas exigen el uso de un enfoque de gesti\u00f3n m\u00e1s integral\u201d, dijo en un comunicado el Dr. Dan Westberg, Gerente T\u00e9cnico de Mercado de BASF. &quot;El uso repetido de una sola qu\u00edmica es la raz\u00f3n n\u00famero uno por la que muchos han desarrollado poblaciones de malezas resistentes&quot;.<\/p>\n<p>M\u00e1s de 80% de los encuestados dijeron que estar\u00edan dispuestos a invertir d\u00f3lares adicionales para controlar las malezas resistentes. La Weed Science Society of America ha confirmado 13 especies diferentes de malezas resistentes al glifosato que roban ganancias en 28 estados de EE. UU.<\/p>\n<p>Muchos encuestados tambi\u00e9n dijeron que aplicar\u00edan un herbicida de preemergencia antes o durante la siembra para una base de control de malezas, as\u00ed como tambi\u00e9n agregar\u00edan mezclas de tanque a sus aplicaciones posteriores, dijo BASF. Aproximadamente un tercio de los encuestados dijo que trabajar\u00eda con un consultor para planificar sus programas.<\/p>\n<p class=\"subhead\">Cambio dr\u00e1stico desde 2010<\/p>\n<p>En 2010, una encuesta de BASF pregunt\u00f3 a los clientes si pensaban que la resistencia a los herbicidas afecta el rendimiento. Solo 23% respondi\u00f3 &quot;s\u00ed&quot;.<\/p>\n<p>Esto marca un cambio dr\u00e1stico con respecto a su encuesta m\u00e1s reciente, que pregunt\u00f3 a los agricultores qu\u00e9 cantidad de malezas resistentes al impacto del rendimiento ten\u00edan en sus rendimientos en 2011: esta vez, 73% dijo que hab\u00eda al menos alg\u00fan impacto en el rendimiento.<\/p>\n<p>Sin embargo, no todos los agricultores est\u00e1n de acuerdo en que la resistencia sea una preocupaci\u00f3n inmediata. El diecis\u00e9is por ciento de los encuestados dijeron que no gastar\u00edan m\u00e1s para controlar las malezas resistentes. Un tercio de los encuestados dijo que no cree que las malezas resistentes afecten siquiera el retorno de la inversi\u00f3n.<\/p>\n<p>BASF cit\u00f3 al cient\u00edfico de malezas de la Universidad de Tennessee, Dr. Larry Steckel, quien dijo que las malezas resistentes al glifosato han asestado a los agricultores de Tennessee un golpe financiero del orden de $200 millones.<\/p>\n<p>\u201cY eso es muy conservador\u201d, dijo Steckel, \u201cporque no se cuentan los campos que se cultivaron y no se cosecharon. Ha tenido un gran impacto, muy por encima de lo que pensaba al entrar en esto hace seis o siete a\u00f1os &quot;.<\/p>\n<p>Los cient\u00edficos de malezas recomiendan que los productores adopten un programa de manejo de malezas m\u00e1s completo para prolongar la eficacia del glifosato. Esto incluye el empleo de m\u00faltiples sitios de acci\u00f3n de herbicidas en la temporada de crecimiento, dijo Westberg.<\/p>\n<p><em>Fuente: BASF, editado por Jaclyn Sindrich, editora gerente<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e1s de un tercio de los agricultores estadounidenses que respondieron a una encuesta realizada por BASF dijeron que planean agregar m\u00faltiples herbicidas ...<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[],"class_list":["post-28707","post","type-post","status-publish","format-standard","hentry","category-herbicides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>One-Third of US Farmers to Add Herbicide Sites of Action in 2012 - AgriBusiness Global<\/title>\n<meta name=\"description\" content=\"More than one-third of US farmers responding to a survey conducted by BASF said they plan to add multiple herbicide sites of action this year in response\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agribusinessglobal.com\/es\/agrochemicals\/herbicides\/one-third-of-us-farmers-to-add-herbicide-sites-of-action-in-2012\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"One-Third of US Farmers to Add Herbicide Sites of Action in 2012 - 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