{"id":28283,"date":"2011-12-13T00:00:00","date_gmt":"2011-12-13T05:00:00","guid":{"rendered":"http:\/\/www.farmchemicalsinternational.com\/2011\/12\/13\/weed-control-plagues-african-agriculture\/"},"modified":"2014-11-21T14:22:55","modified_gmt":"2014-11-21T19:22:55","slug":"weed-control-plagues-african-agriculture","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/pt\/agrochemicals\/herbicides\/weed-control-plagues-african-agriculture\/","title":{"rendered":"Controle de ervas daninhas \u00e9 uma praga na agricultura africana"},"content":{"rendered":"<p>Apenas 5% de hectares de pequenas explora\u00e7\u00f5es agr\u00edcolas recebem aplica\u00e7\u00f5es de herbicidas, de acordo com as \u00faltimas <a href=\"http:\/\/www.ingentaconnect.com\/content\/resinf\/opm\"><em>Perspectivas sobre o manejo de pragas<\/em><\/a> publica\u00e7\u00e3o.<\/p>\n<p>No relat\u00f3rio, a CropLife Foundation, que aborda os desenvolvimentos internacionais em prote\u00e7\u00e3o de cultivos e biotecnologia agr\u00edcola, detalhou os problemas enfrentados pelos pequenos agricultores na \u00c1frica Subsaariana e poss\u00edveis solu\u00e7\u00f5es para ajudar os produtores a obter herbicidas em um estudo intitulado \u201cOverlooking the Obvious: The Opportunity for Herbicides in Africa\u201d.<\/p>\n<p>A raiz da discrep\u00e2ncia entre a aplica\u00e7\u00e3o em pequenos produtores e em grandes planta\u00e7\u00f5es est\u00e1 no canal de distribui\u00e7\u00e3o, diz Leonard Gianessi, diretor do Crop Protection Research Institute, uma unidade de pesquisa da CropLife Foundation.<\/p>\n<p>\u201cO problema n\u00e3o \u00e9 a regulamenta\u00e7\u00e3o. Os produtos herbicidas necess\u00e1rios para pequenos produtores s\u00e3o registrados h\u00e1 anos\u201d, ele diz. \u201cEles s\u00e3o amplamente usados em grandes fazendas comerciais e governamentais. Eles est\u00e3o dispon\u00edveis a um pre\u00e7o baixo. Um problema \u00e9 a distribui\u00e7\u00e3o de produtos para milhares de pequenas lojas, treinamento de aplicadores e desenvolvimento de servi\u00e7os de pulveriza\u00e7\u00e3o.\u201d<\/p>\n<p>Ervas daninhas de folhas largas e gram\u00edneas dominam o espectro de ervas daninhas na \u00c1frica, de acordo com a CropLife. Problemas com ervas daninhas s\u00e3o mais severos nas regi\u00f5es tropicais africanas do que na Europa e Am\u00e9rica do Norte por causa do clima t\u00f3rrido e da intensidade da luz do continente, fazendo com que as ervas daninhas proliferem em uma taxa mais r\u00e1pida.<\/p>\n<p>\u201cGovernos e organiza\u00e7\u00f5es internacionais de ajuda n\u00e3o est\u00e3o focados em ervas daninhas ou herbicidas. Embora a erva daninha parasita Striga tenha sua aten\u00e7\u00e3o, eles n\u00e3o fizeram do controle de ervas daninhas de campos agr\u00edcolas um foco \u2013 escolhendo, em vez disso, focar em melhoramento de culturas, fertilizantes, irriga\u00e7\u00e3o, etc.\u201d, diz Gianessi.<\/p>\n<p>H\u00e1 duas raz\u00f5es para isso, ele acrescenta, relacionadas a pap\u00e9is de g\u00eanero e volumes de pesticidas. A remo\u00e7\u00e3o de ervas daninhas \u00e9 considerada \u201ctrabalho de mulheres\u201d, que o governo considera de baixa prioridade. Al\u00e9m disso, as equipes de organiza\u00e7\u00f5es de ajuda internacional se op\u00f5em a projetos que levariam a um aumento no uso de pesticidas.<\/p>\n<p>Organiza\u00e7\u00f5es como a CropLife Zambia assumiram a vanguarda na educa\u00e7\u00e3o de agricultores sobre aplica\u00e7\u00e3o de herbicidas. Com uma pequena doa\u00e7\u00e3o, eles treinaram aplicadores de herbicidas que, por uma taxa, contrataram seus servi\u00e7os. A demanda dos agricultores tem sido t\u00e3o grande que o pa\u00eds ficou sem herbicidas nos \u00faltimos dois anos, de acordo com a organiza\u00e7\u00e3o.<\/p>\n<p>A ci\u00eancia das ervas daninhas tamb\u00e9m recebe pouco financiamento em compara\u00e7\u00e3o \u00e0 patologia vegetal e \u00e0 entomologia, diz Gianessi.<\/p>\n<p>Ao reduzir a m\u00e3o de obra necess\u00e1ria para o controle de ervas daninhas, o uso de herbicidas pode permitir que recursos adicionais sejam investidos em culturas alimentares em benef\u00edcio da seguran\u00e7a alimentar na regi\u00e3o, de acordo com o <em>Perspectivas<\/em> publica\u00e7\u00e3o.<\/p>\n<p> Junto com a seguran\u00e7a alimentar e melhor nutri\u00e7\u00e3o, um dos benef\u00edcios potenciais do uso de herbicidas inclui um aumento na renda. Al\u00e9m disso, crian\u00e7as e mulheres poderiam passar mais tempo recebendo educa\u00e7\u00e3o em vez de capinando.<\/p>\n<p>\u201cA ado\u00e7\u00e3o de herbicidas por pequenos produtores vai acontecer de baixo para cima, n\u00e3o de cima para baixo\u201d, diz Gianessi.<\/p>\n<p>Para ler o completo <em>Perspectivas sobre o manejo de pragas<\/em><em>para<\/em> relat\u00f3rio publicado pela Research Information Ltd., <a href=\"http:\/\/www.ingentaconnect.com\/content\/resinf\/opm\">Clique aqui.<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Apenas 5% de acres de fazendas de pequenos produtores recebem aplica\u00e7\u00f5es de herbicidas, de acordo com a publica\u00e7\u00e3o mais recente Outlooks on Pest Management. No\u2026<\/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":[25,19],"tags":[],"class_list":["post-28283","post","type-post","status-publish","format-standard","hentry","category-africa-middle-east","category-herbicides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Weed Control Plagues African Agriculture - AgriBusiness Global<\/title>\n<meta name=\"description\" content=\"Only 5% of smallholder farm acres receive herbicide applications, according to the latest Outlooks on Pest Management publication. 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