{"id":207989,"date":"2025-06-20T14:00:00","date_gmt":"2025-06-20T12:00:00","guid":{"rendered":"https:\/\/atami.com\/blog\/uncategorized-usa\/calcium-and-magnesium-in-cultivation-essential-nutrients-for-a-healthy-deficiency-free-harvest"},"modified":"2026-04-29T08:46:17","modified_gmt":"2026-04-29T06:46:17","slug":"calcium-and-magnesium-in-cultivation-essential-nutrients-for-a-healthy-deficiency-free-harvest","status":"publish","type":"post","link":"https:\/\/atami.com\/usa\/blog\/cultivation\/calcium-and-magnesium-in-cultivation-essential-nutrients-for-a-healthy-deficiency-free-harvest","title":{"rendered":"Calcium and Magnesium in Cultivation: Essential Nutrients for a Healthy, Deficiency-Free Harvest"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"207989\" class=\"elementor elementor-207989 elementor-207913\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-998b2ea e-flex e-con-boxed e-con e-parent\" data-id=\"998b2ea\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9dc7c4e elementor-widget elementor-widget-text-editor\" data-id=\"9dc7c4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In the world of cultivation, some nutrients steal all the spotlight\u2026 (yes, we\u2019re looking at you, NPK). Meanwhile, others quietly play a crucial role behind the scenes.<\/p>\n<p>That\u2019s exactly the case with calcium and magnesium: two key macronutrients that are frequently underestimated but can make a huge difference to plant health, growth, and overall crop quality.<\/p>\n<p>In this blog, we explain why they are so important, when they may be lacking, what symptoms they cause and, above all, how to prevent deficiencies with ATA CALMAG and VGN CALMAG, Atami&#8217;s additives designed to meet precisely these needs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b771e9 elementor-widget elementor-widget-image\" data-id=\"3b771e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"813\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-1-e1750321447567.webp\" class=\"attachment-full size-full wp-image-207925\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-1-e1750321447567.webp 1080w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-1-e1750321447567-300x226.webp 300w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-1-e1750321447567-600x452.webp 600w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15f3264 elementor-widget elementor-widget-text-editor\" data-id=\"15f3264\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Contents<\/h2>\n<ol>\n<li>Functions of Calcium in Plants and Signs of Deficiency<\/li>\n<li>Functions of Magnesium in Plants and Signs of Deficiency<\/li>\n<li>Why Calcium and Magnesium Deficiencies Happen in Modern Cultivation<\/li>\n<li>Why You Should Use ATA CALMAG or VGN CALMAG<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<h2>Functions of Calcium in Plants<\/h2>\n<p>Did you know that calcium acts like the &#8220;cement&#8221; of your plants?<\/p>\n<p>Even though it doesn\u2019t directly participate in photosynthesis, <strong>calcium is essential for maintaining the structure and overall health of your crop.<\/strong> It\u2019s far from a filler nutrient \u2014 it plays a critical role in ensuring that plant cells function properly and can defend themselves against stress.<\/p>\n<p>\u00a0<\/p>\n<h3>What does calcium do for plants?<\/h3>\n<ul>\n<li><strong>Cell structure:<\/strong> Calcium is a key part of plant cell walls, giving them rigidity and strength. A plant without calcium is, quite literally, a soft plant.<\/li>\n<li><strong>Root development:<\/strong> It supports the formation and elongation of young roots, improving water and nutrient uptake.<\/li>\n<li><strong>Cell division and elongation:<\/strong> No calcium, no growth.<\/li>\n<li><strong>Enzyme activation:<\/strong> Many internal plant reactions require calcium to kickstart key biological processes.<\/li>\n<li><strong>Stress resistance:<\/strong> Well-structured plants are better equipped to handle drought, heat stress and pathogens.<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<h3>Calcium deficiency symptoms in plant leaves<\/h3>\n<p>Unlike magnesium, <strong>calcium is not very mobile within the plant.<\/strong> That\u2019s why the first signs of deficiency appear in new growth and at shoot tips:<\/p>\n<ul>\n<li><strong>Deformed new leaves<\/strong>, often with curled or sticky edges<\/li>\n<li><strong>Necrosis on leaf margins<\/strong>; brown, dry spots that spread from the edges<\/li>\n<li><strong>Burnt or dead leaf tips<\/strong><\/li>\n<li><strong>Stunted growth<\/strong> in young shoots<\/li>\n<li><strong>In fruits:<\/strong> blossom-end rot (especially in tomatoes), cracked skins, or visible deformities<\/li>\n<\/ul>\n<p>Learn more about calcium deficiency and functions <a href=\"https:\/\/atami.com\/usa\/blog\/cultivation\/calcium-plant-deficiency-symptoms-causes-and-solutions\"><strong>here<\/strong><\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-239e303 elementor-widget elementor-widget-image\" data-id=\"239e303\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2-768x512.webp\" class=\"attachment-medium_large size-medium_large wp-image-207936\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2-768x512.webp 768w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2-300x200.webp 300w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2-600x400.webp 600w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2-1024x682.webp 1024w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-2.webp 1297w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25e2f67 elementor-widget elementor-widget-text-editor\" data-id=\"25e2f67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Functions of Magnesium in Plants<\/h2>\n<h3>What does magnesium do for your crop?<\/h3>\n<p>Magnesium (Mg) is one of those nutrients that often goes unnoticed&#8230; until it\u2019s missing. And when it\u2019s missing, your plants feel it fast.<\/p>\n<p>Here are its key roles:<\/p>\n<ul>\n<li><strong>Central component of chlorophyll<\/strong><br \/>It\u2019s quite literally the heart of the molecule that allows the plant to photosynthesise. Without magnesium, your plant can\u2019t turn light into energy.<\/li>\n<li><strong>Involved in sugar and protein production<\/strong><br \/>Magnesium activates many enzymes related to metabolism, energy transfer and the formation of carbohydrates essential for plant growth.<\/li>\n<li><strong>Helps phosphorus uptake<\/strong><br \/>Phosphorus is crucial for developing strong roots, flowers and fruits \u2014 but its absorption is limited if magnesium is lacking.<\/li>\n<li><strong>Supports internal nutrient transport<\/strong><br \/>Magnesium helps move other nutrients throughout the plant, promoting balanced development and healthy growth.<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<h3>Magnesium deficiency symptoms in plant leaves<\/h3>\n<ul>\n<li><strong>Interveinal chlorosis:<\/strong> Leaves turn yellow between the veins, while the veins themselves remain green.<\/li>\n<li><strong>First appears on older leaves:<\/strong> Since magnesium is a mobile nutrient, the plant redirects it to new growth, leaving older leaves visibly affected \u2014 as you can see in the image below.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0173f5d elementor-widget elementor-widget-image\" data-id=\"0173f5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"743\" height=\"892\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-3.webp\" class=\"attachment-medium_large size-medium_large wp-image-207947\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-3.webp 743w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-3-300x360.webp 300w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-3-600x720.webp 600w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-3-250x300.webp 250w\" sizes=\"(max-width: 743px) 100vw, 743px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c30f2b elementor-widget elementor-widget-text-editor\" data-id=\"5c30f2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li><strong>Advanced deficiency<\/strong> can lead to necrosis and premature leaf drop.<\/li>\n<li><strong>Reduced yield and quality<\/strong>, especially in demanding plants or during late flowering.<\/li>\n<\/ul>\n<p>Learn more about magnesium deficiency and functions <a href=\"https:\/\/atami.com\/usa\/blog\/cultivation\/magnesium-plant-deficiency-symptoms-causes-and-solutions\"><strong>here<\/strong><\/a>.<\/p>\n<p>\u00a0<\/p>\n<h2>When can calcium and magnesium deficiencies occur?<\/h2>\n<p>There are several situations where these <strong>secondary nutrients<\/strong> become absolutely critical:<\/p>\n<ul>\n<li><strong>Fast-growing or high-yielding crops:<\/strong> Vigorous plants with rapid growth or heavy fruiting (like tomatoes, peppers or flowering potted plants) often consume more calcium and magnesium than a standard base fertiliser can provide.<\/li>\n<li><strong>Coco-based substrates:<\/strong> Coco has low buffering capacity for calcium and magnesium, making supplementation essential to avoid deficiencies.<\/li>\n<li><strong>Irrigation with reverse osmosis, distilled or rainwater:<\/strong> These types of water contain very low levels of minerals \u2014 especially calcium.<\/li>\n<li><strong>LED lighting:<\/strong> Under LED grow lights, plants photosynthesise more efficiently and have faster metabolism. This increases their demand for calcium and magnesium, particularly during the flowering stage. When LED growing, adding a calcium and magnesium supplement becomes a must.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7523d7f elementor-widget elementor-widget-image\" data-id=\"7523d7f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"577\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4-768x577.webp\" class=\"attachment-medium_large size-medium_large wp-image-207958\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4-768x577.webp 768w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4-300x225.webp 300w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4-600x451.webp 600w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4-1024x769.webp 1024w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-4.webp 1297w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a0d514 elementor-widget elementor-widget-text-editor\" data-id=\"6a0d514\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li><strong>Nutrient competition:<\/strong> An excess of certain elements can interfere with uptake:\n<ul>\n<li>High potassium levels can block magnesium absorption.<\/li>\n<li>Too much phosphorus competes with calcium.<\/li>\n<li>Sodium in hard or saline water also makes nutrient uptake more difficult.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Acidic or heavily leached soils<\/strong>, where magnesium is easily washed away.<\/li>\n<\/ul>\n<p><strong>\ud83d\udca1 The key is prevention<\/strong><\/p>\n<p>Even if your base fertiliser includes calcium and magnesium, these conditions often require an extra boost. These elements don\u2019t accumulate easily, and their deficiency quickly impacts plant health.<\/p>\n<p>Using targeted supplements like <strong>ATA CALMAG<\/strong> or <strong>VGN CALMAG<\/strong> helps cover this increased demand and prevents nutrient lockouts or imbalances.<\/p>\n<p>These are <strong>CalMag products for plants<\/strong> designed to restore balance and boost your crop\u2019s health.<\/p>\n<p>\u00a0<\/p>\n<h2>Why use ATA CALMAG or VGN CALMAG? The calcium and magnesium your crop needs for a healthy and abundant harvest.<\/h2>\n<p>When your plants get enough calcium and magnesium, they grow stronger, develop greener leaves, produce healthier flowers and yield tastier fruits. These two nutrients are essential for:<\/p>\n<ul>\n<li><strong>Vigorous vegetative growth<\/strong><\/li>\n<li><strong>Smooth flowering without deficiencies<\/strong><\/li>\n<li><strong>Improved nutrient uptake and energy production<\/strong><\/li>\n<\/ul>\n<p>That\u2019s why supplementing with <strong>a calcium and magnesium product<\/strong> is often a smart move \u2014 especially if you\u2019re growing fast, under lights or in coco.<\/p>\n<p>At Atami, we make it easy for you with <strong>two CalMag solutions tailored to different growing styles:<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-40f92dc e-con-full e-flex e-con e-child\" data-id=\"40f92dc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0d64f2b e-con-full e-flex e-con e-child\" data-id=\"0d64f2b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7233d4e elementor-widget elementor-widget-text-editor\" data-id=\"7233d4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>ATA CALMAG<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c929ffb elementor-widget elementor-widget-image\" data-id=\"c929ffb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"1190\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5.webp\" class=\"attachment-full size-full wp-image-207969\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5.webp 650w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5-300x549.webp 300w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5-600x1098.webp 600w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5-164x300.webp 164w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-5-559x1024.webp 559w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fd401e9 e-con-full e-flex e-con e-child\" data-id=\"fd401e9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73a42e8 elementor-widget elementor-widget-text-editor\" data-id=\"73a42e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>A fast-acting mineral boost with calcium, magnesium and iron.<\/strong> A versatile solution that tackles three common deficiencies in one go.<\/p>\n<p><strong>Perfect for:<\/strong><\/p>\n<ul>\n<li>Growing in <strong>coco or hydroponic systems<\/strong>, where calcium and magnesium retention is limited.<\/li>\n<li>Using <strong>reverse osmosis, rainwater or soft water<\/strong>, which are naturally low in minerals.<\/li>\n<li>The <strong>vegetative phase<\/strong>, especially if plants are weak or under stress.<\/li>\n<\/ul>\n<p><strong>Recommended dosage:<\/strong> 0.1 \u2013 1 ml\/L, depending on water quality and deficiency level.<br \/>Fully compatible with all Atami mineral feeding programmes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-64be65d e-con-full e-flex e-con e-child\" data-id=\"64be65d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a77206d e-con-full e-flex e-con e-child\" data-id=\"a77206d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-993b9ad elementor-widget elementor-widget-text-editor\" data-id=\"993b9ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A <strong>100% organic CalMag additive<\/strong> with <strong>no nitrogen<\/strong>, part of Atami\u2019s new <strong>VGN range<\/strong> \u2014 perfect for growers seeking a natural, sustainable boost.<\/p>\n<p><strong>Perfect for:<\/strong><\/p>\n<ul>\n<li><strong>Organic farming<\/strong> and living soils.<\/li>\n<li>Systems that support <strong>beneficial soil microbes<\/strong>.<\/li>\n<li>The<strong> flowering phase<\/strong>, thanks to its nitrogen-free formula.<\/li>\n<\/ul>\n<p><strong>Recommended dosage:<\/strong> 1 \u2013 2 ml\/L, depending on crop type and stage.<\/p>\n<p><strong>Certified organic. Zero nitrogen. Respects the soil\u2019s natural balance, what more could you want?<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-076ab2a e-con-full e-flex e-con e-child\" data-id=\"076ab2a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9a922ff elementor-widget elementor-widget-text-editor\" data-id=\"9a922ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><b>VGN CALMAG<\/b><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5658879 elementor-widget elementor-widget-image\" data-id=\"5658879\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"346\" height=\"627\" src=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-6-e1750332215206.webp\" class=\"attachment-full size-full wp-image-208006\" alt=\"\" srcset=\"https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-6-e1750332215206.webp 346w, https:\/\/atami.com\/wp-content\/uploads\/2025\/06\/Calcium-and-Magnesium-in-Cultivation-Essential-Nutrients-for-a-Healthy-Deficiency-Free-Harvest-6-e1750332215206-300x544.webp 300w\" sizes=\"(max-width: 346px) 100vw, 346px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b9a354 elementor-widget elementor-widget-text-editor\" data-id=\"3b9a354\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>When to apply CalMag?<\/h2>\n<ul>\n<li><strong>Preventively<\/strong>, in demanding crops, under <strong>LED lighting<\/strong>, in <strong>coco substrate<\/strong>s, or when watering with<strong> low-mineral water<\/strong>.<\/li>\n<li><strong>To correct deficiencies<\/strong>, when early symptoms appear (chlorosis, dry tips, poor vigour).<\/li>\n<li><strong>As an occasional boost<\/strong>, if nutrient uptake isn\u2019t as strong as it should be.<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<h2>Final thoughts: Complete nutrition starts with the essentials<\/h2>\n<p><strong>Calcium and magnesium<\/strong> are more than just secondary nutrients \u2014 they\u2019re the invisible support structure that keeps your plants <strong>healthy, strong and productive<\/strong>. Without them, <strong>photosynthesis, cell division<\/strong> and <strong>nutrient absorption<\/strong> can\u2019t function properly.<\/p>\n<p>That\u2019s why if you grow in coco, use <strong>soft water<\/strong> or rely on <strong>LED lighting, CalMag supplementation<\/strong> isn\u2019t optional \u2014 it\u2019s a smart investment in your crop\u2019s success.<\/p>\n<p><strong>\ud83d\udc49 ATA CALMAG<\/strong> and <strong>VGN CALMAG<\/strong> are essential allies in avoiding the nutrient deficiencies that could hold your grow back.<\/p>\n<p>Start using them today and give your plants the extra edge they need to thrive.<br \/><strong>Your plants (and you) will thank you.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In the world of cultivation, some nutrients steal all the spotlight\u2026 (yes, we\u2019re looking at you, NPK). Meanwhile, others quietly play a crucial role behind the scenes. That\u2019s exactly the case with calcium and magnesium: two key macronutrients that are frequently underestimated but can make a huge difference to plant health, growth, and overall crop [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":207983,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"iawp_total_views":22,"footnotes":""},"categories":[329],"tags":[3533,3535,3532,3534,3537,3531,3536,3530],"class_list":["post-207989","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cultivation","tag-calcium-deficiency-symptoms-in-plant-leaves-usa","tag-functions-of-magnesium-in-the-plant-usa","tag-how-does-calcium-help-plants-in-photosynthesis-usa","tag-how-does-magnesium-help-plants-in-the-process-of-photosynthesis-usa","tag-magnesium-nutrient-deficiency-in-plants-usa","tag-plant-macronutrient-calcium-deficiency-symptoms-usa","tag-what-does-a-plant-look-like-with-a-calcium-deficiency-usa","tag-what-happens-to-a-plant-with-a-calcium-deficiency-usa"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast 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