{"id":60333,"date":"2017-10-20T09:19:00","date_gmt":"2017-10-20T13:19:00","guid":{"rendered":"https:\/\/www.agribusinessglobal.com\/?p=60333"},"modified":"2019-10-01T09:56:29","modified_gmt":"2019-10-01T13:56:29","slug":"precision-agriculture-to-improve-nutrient-use-efficiency-in-brazil","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/pt\/markets\/precision-agriculture-to-improve-nutrient-use-efficiency-in-brazil\/","title":{"rendered":"Agricultura de precis\u00e3o para melhorar a efici\u00eancia do uso de nutrientes no Brasil"},"content":{"rendered":"<section class=\"body\">Por <a href=\"http:\/\/www.precisionag.com\/author\/rodrigo-trevisan\/\">Rodrigo Trevisan<\/a>&nbsp;<\/p>\n<p>Como mencionei no meu <a href=\"http:\/\/www.precisionag.com\/regions\/americas\/future-of-digital-agriculture-arrives-at-south-american-precision-ag-event\/\">\u00faltimo artigo<\/a>, o Simp\u00f3sio IPNI Brasil sobre Agricultura de Precis\u00e3o foi realizado no in\u00edcio de outubro em Goi\u00e2nia, Goi\u00e1s, no centro-oeste do Brasil. Os participantes eram principalmente prestadores de servi\u00e7os, consultores de safra, laborat\u00f3rios de an\u00e1lise de solo, empresas de fertilizantes, empresas de m\u00e1quinas agr\u00edcolas, pesquisadores e fazendeiros. As apresenta\u00e7\u00f5es foram feitas por importantes pesquisadores de agricultura de precis\u00e3o do Brasil, EUA e M\u00e9xico, com foco nas melhores pr\u00e1ticas de gest\u00e3o de fertilizantes.<\/p>\n<p>V\u00e1rios conceitos-chave para a ado\u00e7\u00e3o da agricultura de precis\u00e3o foram relembrados e discutidos. O t\u00f3pico que gerou mais controv\u00e9rsia foi a amostragem de solo em grade, principalmente devido \u00e0s preocupa\u00e7\u00f5es com a densidade m\u00ednima de pontos necess\u00e1ria para caracterizar eficientemente a variabilidade espacial de uma \u00e1rea. O padr\u00e3o comumente adotado de um ponto para cada 3 a 5 hectares nem sempre \u00e9 suficiente para isso. Esquemas de amostragem densa t\u00eam pouca aceita\u00e7\u00e3o devido aos custos mais altos. O uso de sensores remotos e proximais para a coleta de dados auxiliares densos ainda \u00e9 marginalmente adotado. As principais alternativas discutidas foram o uso de zonas de manejo ou amostragem em c\u00e9lulas regulares, sem o uso de interpola\u00e7\u00e3o. Isso ocorre especialmente quando o n\u00famero total de pontos \u00e9 pequeno, menor que cerca de 60, devido a pequenas \u00e1reas ou baixa densidade de amostragem. Um dos fatores limitantes para a ado\u00e7\u00e3o de zonas de manejo no Brasil \u00e9 a falta de mapas de produtividade de boa qualidade. Estima-se que essa importante fonte de dados esteja sendo coletada em menos de 1% da \u00e1rea de produ\u00e7\u00e3o de gr\u00e3os no Brasil.<\/p>\n<div id=\"attachment_60334\" style=\"width: 645px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.agribusinessglobal.com\/pt\/markets\/precision-agriculture-to-improve-nutrient-use-efficiency-in-brazil\/attachment\/ipni-brazil-635x357\/\" rel=\"attachment wp-att-60334\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-60334\" class=\"wp-image-60334 size-full\" src=\"https:\/\/files.agribusinessglobal.com\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357.jpg\" width=\"635\" height=\"357\" alt=\"Precision Agriculture to Improve Nutrient Use Efficiency in Brazil\" srcset=\"https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357.jpg 635w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-300x169.jpg 300w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-320x180.jpg 320w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-501x282.jpg 501w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-136x77.jpg 136w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-330x186.jpg 330w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-128x72.jpg 128w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-16x9.jpg 16w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-32x18.jpg 32w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-64x36.jpg 64w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-85x48.jpg 85w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-150x84.jpg 150w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-318x179.jpg 318w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-580x326.jpg 580w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-145x82.jpg 145w, https:\/\/d6kq167ddwbdq.cloudfront.net\/farmchemint\/wp-content\/uploads\/2017\/10\/IPNI-Brazil-635x357-100x57.jpg 100w\" sizes=\"auto, (max-width: 635px) 100vw, 635px\" \/><\/a><p id=\"caption-attachment-60334\" class=\"wp-caption-text\">Imagem da sess\u00e3o de encerramento do Simp\u00f3sio de Agricultura de Precis\u00e3o do IPNI Brasil. O professor Jos\u00e9 Paulo Molin apresentou uma revis\u00e3o hist\u00f3rica do desenvolvimento da agricultura de precis\u00e3o no Brasil e tend\u00eancias futuras.<\/p><\/div>\n<p>Tamb\u00e9m foram discutidas as pr\u00e1ticas de manejo para aproveitar a variabilidade. Foi consenso que h\u00e1 uma necessidade urgente de evolu\u00e7\u00e3o do conhecimento agron\u00f4mico para possibilitar recomenda\u00e7\u00f5es mais completas e assertivas. Um exemplo de pesquisa que foi apresentado \u00e9 o uso de culturas de cobertura plantadas em diferentes densidades em cada zona de manejo de acordo com o principal problema a ser superado. Entender a rela\u00e7\u00e3o entre atributos do solo e do relevo, como capacidade de reten\u00e7\u00e3o de \u00e1gua e resposta da cultura aos fertilizantes, tamb\u00e9m se mostrou importante para gerar prescri\u00e7\u00f5es. Uma das ferramentas que pesquisadores e agricultores est\u00e3o usando para avan\u00e7ar neste assunto \u00e9 o uso de ensaios on-farm em cada zona de manejo. Popula\u00e7\u00e3o de plantas e taxas de fertilizantes t\u00eam sido os assuntos mais comumente abordados por meio desta t\u00e9cnica. Este tamb\u00e9m ser\u00e1 um dos t\u00f3picos discutidos no <a href=\"http:\/\/sap.pecege.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Semin\u00e1rio de Agricultura de Precis\u00e3o,<\/a> que ser\u00e1 realizado em Piracicaba \u2013 SP em novembro.<\/p>\n<p>A import\u00e2ncia de treinar e educar pessoas em agricultura de precis\u00e3o tamb\u00e9m foi mencionada por muitos palestrantes. Ap\u00f3s aproximadamente 20 anos de uso da agricultura de precis\u00e3o no Brasil, menos de 5% dos cursos de gradua\u00e7\u00e3o em Agronomia ou Engenharia Agr\u00edcola incorporaram a agricultura de precis\u00e3o como disciplina em seu curr\u00edculo acad\u00eamico. Apesar da exist\u00eancia de muitos cursos de curta dura\u00e7\u00e3o e at\u00e9 mesmo de p\u00f3s-gradua\u00e7\u00e3o, muitos alunos de gradua\u00e7\u00e3o nem sequer t\u00eam a chance de serem formalmente apresentados a conceitos importantes da agricultura de precis\u00e3o. <a href=\"http:\/\/asbraap.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">Associa\u00e7\u00e3o Brasileira de Agricultura de Precis\u00e3o (AsBraAP)<\/a>, criado no ano passado, deve somar esfor\u00e7os para promover a educa\u00e7\u00e3o em agricultura de precis\u00e3o e melhorar a qualifica\u00e7\u00e3o de profissionais em \u00e1reas correlatas. Outra a\u00e7\u00e3o importante da AsBraAP \u00e9 promover o Congresso Brasileiro de Agricultura de Precis\u00e3o. O CONBAP 2018 foi lan\u00e7ado oficialmente durante o evento e acontecer\u00e1 no ano que vem em Curitiba \u2013 Paran\u00e1, em outubro.<\/p>\n<p>O Simp\u00f3sio de Agricultura de Precis\u00e3o do IPNI Brasil apresentou excelente qualidade t\u00e9cnica e um bom ambiente para aprendizado e networking profissional. Mais do que isso, refor\u00e7ou a import\u00e2ncia de gerar e disseminar bons conhecimentos. A agricultura de precis\u00e3o \u00e9 uma excelente ferramenta para melhorar a efici\u00eancia do uso de nutrientes e muitas pessoas est\u00e3o se unindo para avan\u00e7ar com essa tecnologia no Brasil e no mundo.<\/p>\n<\/section>\n<p>&nbsp;<\/p>\n<p><em>Nota do Editor: Rodrigo Trevisan \u00e9 Coordenador de Agricultura de Precis\u00e3o da Terra Santa Agro (<a href=\"http:\/\/www.terrasantaagro.com\" target=\"_blank\" rel=\"noopener noreferrer\">www.terrasantaagro.com<\/a>), respons\u00e1vel pelo desenvolvimento de projetos relacionados \u00e0 agricultura de precis\u00e3o em mais de 180 mil hectares cultivados com soja, milho e algod\u00e3o.\u00a0<\/em><\/p>\n<p><em>Veja o artigo original <a href=\"http:\/\/www.precisionag.com\/regions\/ipni-brazil-precision-agriculture-to-improve-nutrient-use-efficiency\/\">aqui<\/a>.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>O Simp\u00f3sio IPNI Brasil sobre Agricultura de Precis\u00e3o foi realizado no in\u00edcio de outubro em Goi\u00e2nia, Goi\u00e1s, no centro-oeste do Brasil.<\/p>","protected":false},"author":72,"featured_media":49973,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1604,26,5],"tags":[598,554,578],"class_list":["post-60333","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agtech","category-americas","category-markets","tag-brazil","tag-featured","tag-precision-agriculture"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Precision Agriculture to Improve Nutrient Use Efficiency in Brazil - AgriBusiness Global<\/title>\n<meta name=\"description\" content=\"The IPNI Brazil Symposium on Precision Agriculture was held in early October in Goi\u00e2nia, Goi\u00e1s, in central western Brazil.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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