{"id":694,"date":"2025-07-05T10:05:32","date_gmt":"2025-07-05T10:05:32","guid":{"rendered":"https:\/\/conectagrao.com.br\/blog\/?p=694"},"modified":"2025-08-10T14:16:55","modified_gmt":"2025-08-10T14:16:55","slug":"calcario-agricola-o-que-e-beneficios-e-impactos-na-produtividade","status":"publish","type":"post","link":"https:\/\/conectagrao.com.br\/blog\/calcario-agricola-o-que-e-beneficios-e-impactos-na-produtividade\/","title":{"rendered":"Calc\u00e1rio Agr\u00edcola: o que \u00e9? Benef\u00edcios e impactos na produtividade?"},"content":{"rendered":"\n<p>No Brasil, grande parte dos solos, como os Latossolos e Argissolos, t\u00eam pH entre 4,0 e 5,5, o que os classifica como naturalmente \u00e1cidos. Assim essa condi\u00e7\u00e3o reduz a disponibilidade de nutrientes como f\u00f3sforo e molibd\u00eanio, eleva os n\u00edveis t\u00f3xicos de alum\u00ednio e prejudica a microbiota do solo.<\/p>\n\n\n\n<p>O calc\u00e1rio agr\u00edcola surge como solu\u00e7\u00e3o eficaz: neutraliza o pH, afasta \u00edons t\u00f3xicos e melhora a fertilidade. Neste guia, voc\u00ea descobrir\u00e1 o que \u00e9, como age no solo, contudo os diferentes tipos dispon\u00edveis, quando aplicar e quais s\u00e3o os benef\u00edcios.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. O que \u00e9 e para que serve?<\/h3>\n\n\n\n<p>O calc\u00e1rio agr\u00edcola \u00e9 um insumo composto principalmente por carbonato de c\u00e1lcio (CaCO\u2083) e\/ou de magn\u00e9sio (MgCO\u2083), produzido atrav\u00e9s da moagem de rochas calc\u00e1rias ou dolom\u00edticas.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"675\" height=\"450\" src=\"https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/mina-de-calcario.webp\" alt=\"\" class=\"wp-image-699\" style=\"width:524px;height:auto\" srcset=\"https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/mina-de-calcario.webp 675w, https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/mina-de-calcario-300x200.webp 300w\" sizes=\"(max-width: 675px) 100vw, 675px\" \/><figcaption class=\"wp-element-caption\">Mina de calc\u00e1rio.<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p>Sua a\u00e7\u00e3o no solo \u00e9 tripla:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Eleva o pH, neutralizando a acidez.<\/li>\n\n\n\n<li>Reduz a toxicidade por alum\u00ednio e mangan\u00eas.<\/li>\n\n\n\n<li>Fornece nutrientes essenciais (Ca\u00b2\u207a e Mg\u00b2\u207a) e estimula a atividade microbiol\u00f3gica .<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">3. Tipos de calc\u00e1rio<\/h3>\n\n\n\n<p>A classifica\u00e7\u00e3o baseia-se no teor de magn\u00e9sio (MgO) :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tipo<\/th><th>Teor de MgO<\/th><th>Caracter\u00edsticas<\/th><\/tr><\/thead><tbody><tr><td><strong>Calc\u00edtico<\/strong><\/td><td>&lt; 5%<\/td><td>Fonte b\u00e1sica eficaz para pH<\/td><\/tr><tr><td><strong>Dolom\u00edtico<\/strong><\/td><td>&gt; 12%<\/td><td>Fornece Mg adicional ao Ca<\/td><\/tr><tr><td><strong>Magnesiano<\/strong><\/td><td>5\u201312% (n\u00e3o mais oficial)<\/td><td>Combina propriedades de ambos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Outros materiais, como cal virgem (\u00f3xidos CaO\/MgO) e cal hidratada (hidr\u00f3xidos), oferecem maior reatividade, ou seja, efeito mais r\u00e1pido no solo, por\u00e9m com menor efeito duradouro .<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Como o calc\u00e1rio age quimicamente<\/h3>\n\n\n\n<p>A rea\u00e7\u00e3o t\u00edpica no solo \u00e9:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>CaCO\u2083 + H\u2082O + CO\u2082 \u2192 Ca\u00b2\u207a + 2\u00b7OH\u207b + CO\u2082<br><\/code><\/pre>\n\n\n\n<p>As hidroxilas (OH\u207b) neutralizam H\u207a e precipitam Al\u00b3\u207a, reduzindo a acidez e os elementos t\u00f3xicos. Logo o processo costuma levar cerca de tr\u00eas meses para se completar .<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Benef\u00edcios agron\u00f4micos<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Neutraliza\u00e7\u00e3o da acidez<\/strong> \u2013 reduz os \u00edons H\u207a e Al\u00b3\u207a, elevando o pH.<\/li>\n\n\n\n<li><strong>Melhora da fertilidade<\/strong> \u2013 aumenta a satura\u00e7\u00e3o por bases (Ca e Mg).<\/li>\n\n\n\n<li><strong>Sa\u00fade do solo<\/strong> \u2013 estimula microrganismos ben\u00e9ficos.<\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o das plantas<\/strong> \u2013 reduz toxicidade e melhora o crescimento radicular.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/calcario-mina-1024x681.jpeg\" alt=\"\" class=\"wp-image-697\" srcset=\"https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/calcario-mina-1024x681.jpeg 1024w, https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/calcario-mina-300x199.jpeg 300w, https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/calcario-mina-768x511.jpeg 768w, https:\/\/conectagrao.com.br\/blog\/wp-content\/uploads\/2025\/07\/calcario-mina.jpeg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<div style=\"border: 2px solid #ff9800; border-radius: 10px; padding: 20px; background: #ffffff; box-shadow: 0 4px 12px rgba(0,0,0,0.1); font-family: Arial, sans-serif; width: 100%; max-width: 100%; margin: 20px 0; text-align: center; box-sizing: border-box;\">\n  \n  <h3 style=\"color: #ff9800; font-size: 24px; margin-top: 0; margin-bottom: 15px;\">\n    <span style=\"display: none;\" class=\"whatsapp-icon\">\n      <img decoding=\"async\" src=\"https:\/\/e7.pngegg.com\/pngimages\/347\/373\/png-clipart-computer-icons-whatsapp-whatsapp-text-trademark-thumbnail.png\" alt=\"WhatsApp\" style=\"width: 40px; height: 40px; border-radius: 50%; object-fit: cover;\">\n    <\/span>\n  <\/h3>\n  \n  <div style=\"display: flex; justify-content: center; align-items: center; flex-wrap: wrap; margin-bottom: 10px;\">\n    <div style=\"text-align: center; margin-right: 10px;\"> <!-- Reduzido o margin-right -->\n      <p style=\"font-size: 16px; color: #333; line-height: 1.5; margin: 0;\">\n        \ud83d\udcf0 Not\u00edcias &#038; Mercado | \ud83d\udd14 Novidades <span class=\"desktop-separator\">|<\/span>\n      <\/p>\n    <\/div>\n    <div style=\"text-align: center;\">\n      <p style=\"font-size: 16px; color: #333; line-height: 1.5; margin: 0;\">\n        \u26c5 Clima | \ud83d\ude80 Tecnologia | \ud83d\udcf1 Blog\n      <\/p>\n    <\/div>\n  <\/div>\n  \n  <a href=\"https:\/\/www.whatsapp.com\/channel\/0029VaLMT22GOj9f6eVOpJ0N\" target=\"_blank\" style=\"background: #25D366; color: #fff; padding: 10px 20px; font-size: 16px; font-weight: bold; text-decoration: none; border-radius: 30px; display: inline-block; transition: all 0.3s; position: relative;\">\n    <img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/6\/6b\/WhatsApp.svg\" alt=\"WhatsApp\" style=\"width: 20px; height: 20px; vertical-align: middle; margin-right: 5px;\">\n    Entrar no Canal\n  <\/a>\n  \n  <p style=\"font-size: 12px; color: #666; margin-top: 15px; font-weight: bold;\">\n    Sua conex\u00e3o com as melhores informa\u00e7\u00f5es do agroneg\u00f3cio!\n  <\/p>\n<\/div>\n\n<style>\n@media (max-width: 768px) {\n  .desktop-separator {\n    display: none; \/* Ocultar o separador \"|\" em dispositivos m\u00f3veis *\/\n  }\n  h3 {\n    font-size: 20px; \/* Diminuir o tamanho da fonte do t\u00edtulo em dispositivos m\u00f3veis *\/\n  }\n  p {\n    font-size: 14px; \/* Diminuir o tamanho da fonte dos par\u00e1grafos em dispositivos m\u00f3veis *\/\n  }\n  a {\n    font-size: 14px; \/* Diminuir o tamanho da fonte do bot\u00e3o em dispositivos m\u00f3veis *\/\n    padding: 8px 15px; \/* Ajustar o padding do bot\u00e3o em dispositivos m\u00f3veis *\/\n  }\n}\n<\/style>\n\n\n\n<h3 class=\"wp-block-heading\">6. Qual escolher e quando aplicar?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>An\u00e1lise de solo<\/strong>: fundamental para identificar os n\u00edveis de pH, Ca, Mg e acidez.<\/li>\n\n\n\n<li><strong>Calc\u00edtico<\/strong> \u00e9 suficiente se apenas for necess\u00e1ria a corre\u00e7\u00e3o do pH.<\/li>\n\n\n\n<li><strong>Dolom\u00edtico<\/strong> \u00e9 indicado quando h\u00e1 car\u00eancia de magn\u00e9sio.<\/li>\n\n\n\n<li><strong>Cal virgem ou hidratada<\/strong> t\u00eam a\u00e7\u00e3o r\u00e1pida e exigem menores doses, mas s\u00e3o menos dur\u00e1veis.<\/li>\n\n\n\n<li>logo deve-se considerar tamb\u00e9m par\u00e2metros como PRNT (Poder Relativo de Neutraliza\u00e7\u00e3o Total) e fatores de reatividade de cada fonte.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Assim o calc\u00e1rio agr\u00edcola \u00e9 essencial para corrigir solos \u00e1cidos, melhorando o pH, fornecendo nutrientes e favorecendo a microbiota. Logo a escolha ideal depende da an\u00e1lise de solo e dos objetivos de manejo (mais imediatos ou de longo prazo). Assim ao trabalhar com um agr\u00f4nomo e considerar vari\u00e1veis como PRNT e reatividade, voc\u00ea garantir\u00e1 uma aplica\u00e7\u00e3o eficaz e sustent\u00e1vel.<\/p>\n\n\n\n<p><strong>Refer\u00eancia<\/strong><br>SEBIM, J.P.M. <em>Calc\u00e1rio agr\u00edcola: o que \u00e9, como aplicar e qual o impacto na produtividade da lavoura<\/em>. <a href=\"https:\/\/agroadvance.com.br\/blog-calcario-agricola\/?utm_source=google&amp;utm_medium=organic&amp;utm_campaign=&amp;utm_content=blog&amp;utm_term=\">Blog Agroadvance.<\/a> 2 de julho de 2025.<\/p>\n\n\n\n<p>Escrito por: Kao\u00ea Rauch-equipe ConectaGr\u00e3o<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Descubra o que \u00e9 calc\u00e1rio agr\u00edcola, seus principais tipos, como ele age no solo e os benef\u00edcios diretos na corre\u00e7\u00e3o da acidez e no aumento da produtividade. Entenda quando e como aplicar o calc\u00e1rio corretamente para melhorar a fertilidade do solo e obter melhores resultados na lavoura.<\/p>\n","protected":false},"author":1,"featured_media":701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_uag_custom_page_level_css":"","footnotes":""},"categories":[32,1],"tags":[102,103,100,101,105,106,107],"class_list":["post-694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agricultura","category-blog","tag-acidez-do-solo","tag-aumento-da-produtividade","tag-calcario-agricola","tag-correcao-do-solo","tag-fertilidade-do-solo","tag-manejo-agricola","tag-ph-do-solo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Calc\u00e1rio Agr\u00edcola: o que \u00e9? 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