{"id":9352,"date":"2019-12-23T15:39:54","date_gmt":"2019-12-23T07:39:54","guid":{"rendered":"https:\/\/www.humicchina.com\/?p=9352"},"modified":"2025-08-29T15:15:58","modified_gmt":"2025-08-29T07:15:58","slug":"how-to-distinguish-humic-acid-potassium-humate-potassium-fulvate","status":"publish","type":"post","link":"https:\/\/www.humicchina.com\/ru\/blog\/how-to-distinguish-humic-acid-potassium-humate-potassium-fulvate","title":{"rendered":"Humic Acid vs. Potassium Humate: Key Differences in Characteristics, Production, and Agricultural Use"},"content":{"rendered":"<p><span style=\"font-size: 14pt;\"> <img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-9359 \" src=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/Water-solubility-comparison-of-potassium-humate-and-humic-acid-164x225.jpg\" alt=\"Humic acid and Potassium humate difference\" width=\"295\" height=\"405\" srcset=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/Water-solubility-comparison-of-potassium-humate-and-humic-acid-164x225.jpg 164w, https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/Water-solubility-comparison-of-potassium-humate-and-humic-acid.jpg 484w\" sizes=\"(max-width: 295px) 100vw, 295px\" \/><span data-leaf=\"true\"><span class=\"lb\">While <\/span><\/span><a href=\"https:\/\/www.humicchina.com\/\" target=\"_blank\" rel=\"noopener\"><span data-leaf=\"true\"><span class=\"lb\">humates and humic acid<\/span><\/span><\/a><span data-leaf=\"true\"><span class=\"lb\"> are often discussed together, understanding the distinction between raw humic acid and its activated derivative\u2014potassium humate\u2014is critical for choosing the right product for your agricultural or environmental needs. These two substances share a common origin in organic matter, but their chemical properties, production processes, and real-world applications differ significantly. Below, we break down their core differences in <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">characteristics<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> and <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">production methods<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">, along with how these differences impact their performance in soil and crop care.<\/span><\/span><br \/>\n<\/span><\/p>\n<h2>1. Core Characteristics: Why Humic Acid and Potassium Humate Behave Differently<\/h2>\n<p class=\"2\"><span lang=\"EN-US\"><a href=\"https:\/\/www.humicchina.com\/humic-acid\" target=\"_blank\" rel=\"noopener\">Humic acid<\/a>, often referred to as \u201chumic acid raw powder\u201d in agricultural markets, is the unprocessed or minimally processed fraction derived from organic-rich sources like <b>leonardite<\/b> (the most common source) or lignite. Its characteristics are tightly linked to its natural, unmodified state:<\/span><\/p>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Origin and Composition<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: At its core, humic acid is essentially concentrated, screened leonardite or lignite. Leonardite itself forms from ancient, partially decomposed plant and animal matter (humification), where the primary component is <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">humus<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">\u2014and humus is largely made up of humic acid. This means raw humic acid retains the chemical structure of its source material, with high carbon content but minimal alteration.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Solubility: A Defining Limitation<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: The biggest constraint of raw humic acid is its <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">poor water solubility<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">. It does not dissolve in neutral or acidic water (the pH range of most agricultural soils, which typically falls between 5.5\u20137.0). It will only dissolve in strongly alkaline solutions (pH &gt; 8.0), such as those mixed with lime or sodium hydroxide. This insolubility means it cannot be easily applied via irrigation systems (drip, sprinkler, or foliar sprays) and struggles to mix uniformly with water.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Reactivity and Bioavailability<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: Due to its low solubility, raw humic acid breaks down very slowly in soil. Beneficial soil microbes must first decompose the large, complex molecules before their nutrients (carbon, micronutrients) become available to plants. This leads to <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">slow-acting effects<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: improvements in soil structure or nutrient retention may take weeks or even months to become visible.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Key Traits for Use<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: Its insolubility isn\u2019t a complete drawback, however. Raw humic acid excels at long-term soil building: it binds to soil particles to improve aggregation (reducing compaction) and acts as a \u201creservoir\u201d for nutrients, even if those nutrients aren\u2019t immediately accessible. It\u2019s ideal for applications where gradual, sustained soil health improvement is the goal\u2014such as pre-planting soil amendments for perennial crops or lawns.<\/span><\/span><\/li>\n<\/ul>\n<h3 class=\"ace-line heading-h3\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\"><a href=\"https:\/\/www.humicchina.com\/super-potassium-humate-flakes-granule-crystal-powder\" target=\"_blank\" rel=\"noopener\">Potassium Humate<\/a>: The Soluble, Fast-Acting Activated Derivative<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/h3>\n<div class=\"ace-line\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\">Potassium humate is not a \u201cnatural\u201d form of humic acid\u2014it is a <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">chemically activated derivative<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> of raw humic acid. Its characteristics are intentionally modified to address the limitations of raw humic acid, making it far more versatile for modern agriculture:<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Origin and Composition<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: Potassium humate is created by reacting raw humic acid (from leonardite or lignite) with a strong alkaline substance\u2014most commonly <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">potassium hydroxide (KOH)<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">, though sodium hydroxide (NaOH) or ammonia water are sometimes used for other humate salts (e.g., sodium humate, ammonium humate). This reaction \u201cneutralizes\u201d the acidic functional groups in humic acid and replaces them with potassium ions, transforming the molecule into a water-soluble salt.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Solubility: The Game-Changing Advantage<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: Unlike raw humic acid, potassium humate is <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">highly water-soluble<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> across a wide pH range (typically 5.0\u20139.0)\u2014the exact range of most agricultural soils and irrigation water. This solubility means it can be easily mixed with water and applied via <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">any<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> irrigation method: drip systems, sprinklers, foliar sprays, or even as a seed soak. It distributes uniformly in soil and can be directly absorbed by plant roots or leaves.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Reactivity and Bioavailability<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: The activation process breaks down large humic acid molecules into smaller, more reactive fragments, boosting both <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">activity<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> and <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">chelation capacity<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">. Chelation is the ability to bind to micronutrients (iron, zinc, manganese) and make them more soluble for plants\u2014potassium humate\u2019s chelating power is 2\u20133x stronger than raw humic acid. This translates to <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">fast-acting results<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: farmers and gardeners often see improvements within 1 week, including:<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet2 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Enhanced soil water retention (critical for drought-prone areas).<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet2 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Longer, more branched crop roots (improving nutrient and water uptake).<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet2 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Reduced nutrient deficiencies (e.g., less iron chlorosis in tomatoes or corn).<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Key Traits for Use<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: Potassium humate is designed for <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">immediate plant support<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">. It\u2019s perfect for seasonal crops (e.g., vegetables, fruits) where rapid growth or stress recovery is needed\u2014such as after transplanting, during fruit development, or in response to drought or salinity. Its solubility also makes it a top choice for hydroponic or soilless growing systems, where water-soluble nutrients are a must.<\/span><\/span><\/li>\n<\/ul>\n<h3>Side-by-Side Characteristic Comparison<\/h3>\n<p>To clarify the differences, here\u2019s a quick breakdown of their key traits:<\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"184\">Trait<\/td>\n<td width=\"184\">Humic Acid (Raw Powder)<\/td>\n<td width=\"184\">Potassium Humate (Activated)<\/td>\n<\/tr>\n<tr>\n<td width=\"184\"><strong>Solubility<\/strong><\/td>\n<td width=\"184\">Insoluble in neutral\/acidic water; soluble only in strong alkali<\/td>\n<td width=\"184\">Highly soluble in water (pH 5.0\u20139.0)<\/td>\n<\/tr>\n<tr>\n<td width=\"184\"><strong>Bioavailability<\/strong><\/td>\n<td width=\"184\">Low (slow decomposition by soil microbes)<\/td>\n<td width=\"184\">High (direct absorption by roots\/leaves)<\/td>\n<\/tr>\n<tr>\n<td width=\"184\"><strong>Reaction Speed<\/strong><\/td>\n<td width=\"184\">Slow (effects visible in 4\u20138 weeks)<\/td>\n<td width=\"184\">Fast (effects visible in 1\u20132 weeks)<\/td>\n<\/tr>\n<tr>\n<td width=\"184\"><strong>Chelation Capacity<\/strong><\/td>\n<td width=\"184\">Moderate (limited to soil-bound nutrients)<\/td>\n<td width=\"184\">High (binds and delivers micronutrients to plants)<\/td>\n<\/tr>\n<tr>\n<td width=\"184\"><strong>Ideal Application<\/strong><\/td>\n<td width=\"184\">Long-term soil building (pre-plant amendments)<\/td>\n<td width=\"184\">Immediate crop support (irrigation, foliar sprays)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2><span lang=\"EN-US\">2. Production Process: How Raw Humic Acid Becomes Potassium Humate<\/span><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12550\" src=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/HUMIC-ACID-PRODUCTION-PROCESS.jpg\" alt=\"\" width=\"979\" height=\"645\" srcset=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/HUMIC-ACID-PRODUCTION-PROCESS.jpg 979w, https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/HUMIC-ACID-PRODUCTION-PROCESS-300x198.jpg 300w, https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/HUMIC-ACID-PRODUCTION-PROCESS-768x506.jpg 768w\" sizes=\"(max-width: 979px) 100vw, 979px\" \/><\/p>\n<p>Raw humic acid don&#8217;t have any chemical additives. No reaction, so it&#8217;s also treated as high purity leonardite or lignite.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-12551\" src=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/potassium-humate-production-process.jpg\" alt=\"\" width=\"781\" height=\"670\" srcset=\"https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/potassium-humate-production-process.jpg 781w, https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/potassium-humate-production-process-262x225.jpg 262w, https:\/\/www.humicchina.com\/wp-content\/uploads\/2019\/12\/potassium-humate-production-process-768x659.jpg 768w\" sizes=\"(max-width: 781px) 100vw, 781px\" \/><\/p>\n<p>Potassium humate is reacted by leonardite and potassium hydroxide. The humic acid in potassium humate is totally activated. Could be absorbed by plants easily.<\/p>\n<h2 class=\"ace-line heading-h2\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\">3. How to Choose Between Humic Acid and Potassium Humate<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/h2>\n<div class=\"ace-line\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\">Now that you understand their differences, the choice between <a href=\"https:\/\/www.humicchina.com\/agriculture\" target=\"_blank\" rel=\"noopener\">humic acid and potassium humate<\/a> depends on your <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">goals<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> and <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">application method<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">:<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Choose Humic Acid If<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: You want to build long-term soil health (e.g., improving clay or sandy soil structure), reduce compaction over time, or add a slow-release carbon source for soil microbes. It\u2019s best applied as a pre-plant soil amendment (mixed into the top 6\u20138 inches of soil) or as a topdressing for lawns\/perennials.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"ace-line list-div\" dir=\"auto\" data-node=\"true\">\n<ul class=\"list-bullet1 r-list r-list-bullet\">\n<li><span data-leaf=\"true\"><span class=\"lb\">Choose Potassium Humate If<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">: You need fast-acting results (e.g., supporting seedling growth, recovering stressed crops, or boosting fruit quality), or if you plan to use irrigation systems (drip, sprinkler) or foliar sprays. It\u2019s also ideal for hydroponics or soilless mixes, where water solubility is non-negotiable.<\/span><\/span><\/li>\n<\/ul>\n<h2 class=\"ace-line heading-h2\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\">Final Takeaway: Complementary, Not Competitive<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/h2>\n<div class=\"ace-line\" dir=\"auto\" data-node=\"true\"><span data-leaf=\"true\"><span class=\"lb\">While humic acid and potassium humate have distinct traits, they are not rivals\u2014they\u2019re complementary. Many farmers and gardeners use <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">both<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> to balance long-term soil health and short-term crop needs: for example, applying raw humic acid in the fall to build soil structure, then using potassium humate in the spring to kickstart seedling growth. By understanding their differences in characteristics and production, you can leverage each to maximize the health of your soil and crops\u2014aligning with the sustainable practices that make <\/span><\/span><span data-leaf=\"true\"><span class=\"lb\">humates and humic acid<\/span><\/span><span data-leaf=\"true\"><span class=\"lb\"> such valuable tools in modern agriculture.<\/span><\/span><span data-string=\"true\" data-enter=\"true\" data-leaf=\"true\">\u200b<\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>While humates and humic acid are often discussed together, understanding the distinction between raw humic acid and its activated derivative\u2014potassium humate\u2014is critical for choosing the right product for your agricultural or environmental needs. These two substances share a common origin in organic matter, but their chemical properties, production processes, and real-world applications differ significantly. Below, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":11534,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[313,206,141],"class_list":["post-9352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-humic-acid","tag-difference-between-humic-acid-and-potassium-humate","tag-humic-acid-and-potassium-humate-difference","tag-potassium-humate"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.3 (Yoast SEO v26.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The difference between humic acid and potassium humate. - JF<\/title>\n<meta name=\"description\" content=\"The difference between humic acid and potassium humate.:Activate humic acid with strong alkali.The final product is potassium humate.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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