{"id":4837,"date":"2026-01-01T18:23:47","date_gmt":"2026-01-01T17:23:47","guid":{"rendered":"https:\/\/agribiomix.com\/irrigation-and-fertilization-of-paulownia\/"},"modified":"2026-01-28T14:35:02","modified_gmt":"2026-01-28T13:35:02","slug":"irrigation-and-fertilization-of-paulownia","status":"publish","type":"post","link":"https:\/\/agribiomix.com\/en\/irrigation-and-fertilization-of-paulownia\/","title":{"rendered":"Irrigation and fertilization of Paulownia"},"content":{"rendered":"\n<style>\n  .abx-a1{\n    --c-vert:#1F8A5B;\n    --c-bleuvert:#0EA5A5;\n    --c-ambre:#F59E0B;\n\n    --c-muted:rgba(0,0,0,.68);\n    --c-bord:rgba(0,0,0,.12);\n    --c-fond:rgba(0,0,0,.02);\n    --c-carte:rgba(255,255,255,.92);\n\n    --r:18px;\n    --r2:26px;\n    --ombre:0 18px 50px rgba(0,0,0,.10);\n\n    color: inherit;\n    font-family: inherit;\n  }\n  @media (prefers-color-scheme: dark){\n    .abx-a1{\n      --c-muted:rgba(255,255,255,.70);\n      --c-bord:rgba(255,255,255,.14);\n      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details{margin-top:10px}\n  .abx-a1 .faq summary{font-weight:900}\n  .abx-a1 .divider{height:1px;background:var(--c-bord);margin:18px 0}\n\n  \/* Anchor offset *\/\n  .abx-a1 [id]{scroll-margin-top:90px}\n<\/style>\n\n<article class=\"abx-a1\">\n  <div class=\"wrap\">\n\n    <header class=\"hero\">\n      <div class=\"hero-in\">\n        <div>\n          <h1>Paulownia Irrigation and Fertilization: Maximizing Yields<\/h1>\n\n          <p class=\"chapo\">\n  Good <a href=\"https:\/\/agribiomix.com\/en\/soil-and-drainage-for-paulownia-successful-planting-technical-guide\/\">draining soil<\/a> is the basis. But to achieve its growth objectives (3 to 5 m per year), Paulownia needs to be managed as an intensive crop.\n The difference between a stunted tree and a valuable log depends on <strong>access to water<\/strong> and a rigorous <strong>NPK fertilization plan<\/strong>.\n          <\/p>\n\n          <div class=\"pastilles\" aria-label=\"rep\u00e8res\">\n             <span class=\"pastille\"><span class=\"dot\"><\/span> Irrigation : Drip vs Gravity<\/span>\n            <span class=\"pastille\"><span class=\"dot bv\"><\/span> Fertilization plan: Nitrogen and Potash<\/span>\n            <span class=\"pastille\"><span class=\"dot am\"><\/span> Input withdrawal schedule<\/span>\n          <\/div>\n\n          <div class=\"sp\"><\/div>\n\n        \n            \n          \n\n          <div class=\"note\">\n            <strong>The key principle:<\/strong> Paulownia is a &#8220;transformer&#8221;. It converts water and nitrogen into ultra-light wood. No fuel, no growth.  \n          <\/div>\n        <\/div>\n\n        <aside class=\"aside\" aria-label=\"Acc\u00e8s direct\">\n          <h2>Related resources<\/h2>\n          <p>\n  To understand the impact of these techniques on the finished product (wood) and profitability.\n          <\/p>\n\n          <div class=\"btns\">\n             <a class=\"btn pri\" href=\"\/?product_cat=biomateriaux\" rel=\"noopener\">\n Our hybrid plants \u2192\n <\/a>\n            <a class=\"btn sec\" href=\"https:\/\/agribiomix.com\/en\/paulownia-groats-quality-criteria-cutting-schedule-precautions\/\" rel=\"noopener\">\n Wood quality criteria \u2192\n <\/a>\n            <a class=\"btn sec\" href=\"https:\/\/agribiomix.com\/en\/paulownia-wood-prices-in-2026-value-markets-and-strategic-advice\/\" rel=\"noopener\">\n Profitability study \u2192\n <\/a> \n          <\/div>\n\n          <div class=\"sp\"><\/div>\n\n         \n        <\/aside>\n      <\/div>\n    <\/header>\n\n    <div class=\"sp\"><\/div>\n\n    <section class=\"bloc\" id=\"irrigation\">\n      <h2>1. Water Management: Quantity and Frequency<\/h2>\n\n      <p>\n  Paulownia&#8217;s large leaves (optimized C4 photosynthesis) transpire enormously. Water stress is the primary <a href=\"https:\/\/agribiomix.com\/en\/growth-of-paulownia-in-france-limiting-factors-and-realistic-expectations\/\">factor limiting<\/a> growth. \n      <\/p>\n\n      <h3>Le Goutte-\u00e0-Goutte (Recommended)<\/h3>\n      <p>\n  This is the queen of techniques. Unlike sprinkling, which encourages leaf diseases, drip irrigation brings water directly to the roots. \n      <\/p>\n      <ul>\n        <li><strong>Year 1:<\/strong> 15 to 20 liters \/ tree \/ week (in 2 or 3 applications).<\/li>\n        <li><strong>Year 2+:<\/strong> 30 to 50 litres\/tree\/week in dry periods.<\/li>\n      <\/ul>\n\n      <div class=\"note\">\n        <strong>Drainage alert:<\/strong> Never forget that water should not stagnate. If your soil is heavy, divide up the contributions (a little every day) rather than flooding once a week. \n      <\/div>\n    <\/section>\n\n    <div class=\"sp\"><\/div>\n\n    <section class=\"bloc\" id=\"fertilisation\">\n      <h2>2. Fertilization plan: The Nitrogen-Potash Duo<\/h2>\n\n      <p>\n  Paulownia has similar needs to corn. It needs &#8220;food&#8221; to build up its biomass quickly. \n      <\/p>\n\n      <div class=\"grid\">\n        <div class=\"card\">\n          <div class=\"badge\"><span class=\"pill\"><\/span>  Nitrogen (N)<\/div>\n          <p class=\"muted\">\n            <strong>The engine of growth.<\/strong><br\/>  Use in spring and early summer. Promotes leaf and green stem development. \n            <em>Source: Urea, ammonium nitrate or poultry droppings.<\/em>\n          <\/p>\n        <\/div>\n\n        <div class=\"card\">\n          <div class=\"badge\"><span class=\"pill bv\"><\/span>  Potash (K)<\/div>\n          <p class=\"muted\">\n            <strong>Hardener.<\/strong><br\/>  Essential in late summer. It enables lignification (transformation of green wood into hardwood) and winter frost resistance. \n          <\/p>\n        <\/div>\n\n        <div class=\"card\">\n          <div class=\"badge\"><span class=\"pill am\"><\/span>  Trace elements<\/div>\n          <p class=\"muted\">\n  Beware of <strong>Magnesium<\/strong> and <strong>Iron<\/strong> deficiencies (especially in calcareous soil pH > 7.5), visible by discoloration between the veins.\n          <\/p>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <div class=\"sp\"><\/div>\n\n    <section class=\"bloc\" id=\"calendrier\">\n      <h2>Service schedule (Technical Itinerary)<\/h2>\n\n      <p>\n  Timing is as important as quantity. Applying nitrogen too late prevents the tree from preparing for winter, increasing the risk of frost. \n      <\/p>\n\n      <div class=\"tablewrap\" role=\"region\" aria-label=\"Calendrier fertilisation paulownia\">\n        <table>\n          <thead>\n            <tr>\n              <th>Period<\/th>\n              <th>Action<\/th>\n              <th>Target<\/th>\n              <th>Product type<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>March &#8211; April<\/strong><\/td>\n              <td>Start irrigation (if dry)<\/td>\n              <td>Root awakening<\/td>\n              <td>Water only<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>May &#8211; June<\/strong><\/td>\n              <td><strong>Nitrogen fertilization (N)<\/strong><\/td>\n              <td>Vegetative bloom (Height)<\/td>\n              <td>N-rich fertilizer (e.g. 20-10-10)<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>July &#8211; August 15<\/strong><\/td>\n              <td>Maintenance + Irrigation max<\/td>\n              <td>Maintain rhythm<\/td>\n              <td>N-P-K balance<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>End of August<\/strong><\/td>\n              <td><strong>TOTAL nitrogen stop<\/strong><\/td>\n              <td>Stop vertical growth<\/td>\n              <td>Potash (K) alone<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>September<\/strong><\/td>\n              <td>Irrigation reduction<\/td>\n              <td>Controlled water stress<\/td>\n              <td>Strengthens budding (lignification)<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>October<\/strong><\/td>\n              <td>Irrigation stop<\/td>\n              <td>Dormancy<\/td>\n              <td>&#8211;<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <div class=\"note\">\n        <strong>Why stop Nitrogen in August?<\/strong>  If you push the tree to grow in September, the wood will remain green and tender (&#8220;herbaceous&#8221;). At the first frost in October\/November, the top of the tree will freeze and you&#8217;ll lose 1 to 2 meters of marketable log. \n      <\/div>\n    <\/section>\n\n    <div class=\"sp\"><\/div>\n\n    <section class=\"bloc\" id=\"donnees\">\n      <h2>Summary of unit requirements (Estimates)<\/h2>\n\n      <p>\n  Data to be adapted according to your initial soil analysis.\n      <\/p>\n\n      <details>\n        <summary>Display NPK units per hectare<\/summary>\n        <pre>annee,unites_N_ha,unites_P_ha,unites_K_ha,frequence_apport\nannee_1,50-80,30-40,40-60,mensuel_mai_juillet\nannee_2,100-150,50-60,80-100,mensuel_mai_juillet\nannee_3_plus,150-200,60-80,100-120,fractionne_printemps\nrecommandation_eau,15-20L_semaine_plant,30-50L_semaine_arbre,,selon_pluviometrie<\/pre>\n      <\/details>\n    <\/section>\n\n    <div class=\"sp\"><\/div>\n\n    <section class=\"bloc faq\" id=\"faq\">\n      <h2>Technical FAQs<\/h2>\n\n      <details>\n        <summary>Can liquid manure be used?<\/summary>\n        <p class=\"muted\">\n  Yes, it&#8217;s excellent, but be careful with burial. Manure must be well composted to avoid burning the young roots. Organic fertilization is best done in the autumn before planting.  \n        <\/p>\n      <\/details>\n\n      <details>\n        <summary>Is irrigation compulsory?<\/summary>\n        <p class=\"muted\">\n  For <strong>quality lumber<\/strong> production in 7-8 years: YES.\n Without irrigation, Paulownia survives but grows much more slowly (12-15 year cycles) and the wood will be denser, less homogeneous (irregular rings), which reduces its market value.\n        <\/p>\n      <\/details>\n\n      <div class=\"divider\" aria-hidden=\"true\"><\/div>\n\n      <h3>Need equipment or advice?<\/h3>\n      <p class=\"muted\">\n  We help our farmer customers size their projects.\n      <\/p>\n\n      <div class=\"btns\" style=\"margin-top:10px\">\n         <a class=\"btn pri\" href=\"https:\/\/agribiomix.com\/en\/produit\/paulownia-elongata-plants\/\" rel=\"noopener\">\n Order Paulownia Plants \u2192\n <\/a>\n        <a class=\"btn sec\" href=\"mailto:edouard@agribiomix.com\" rel=\"noopener\">\n Contact Agribiomix \u2192\n <\/a> \n      <\/div>\n    <\/section>\n\n    <script type=\"application\/ld+json\">\n    {\n      \"@context\": \"https:\/\/schema.org\",\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Quelle quantit\u00e9 d'eau pour un Paulownia ?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Un jeune plant n\u00e9cessite 15 \u00e0 20 litres par semaine la premi\u00e8re ann\u00e9e. Un arbre adulte en production consomme jusqu'\u00e0 50 litres par semaine en \u00e9t\u00e9 pour une croissance optimale.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Quand arr\u00eater l'azote sur le Paulownia ?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Il est imp\u00e9ratif d'arr\u00eater les apports d'azote fin ao\u00fbt. Cela permet \u00e0 l'arbre de stopper sa croissance verticale et de commencer sa lignification (ao\u00fbtement) pour r\u00e9sister au gel.\"\n          }\n        }\n      ]\n    }\n    <\/script>\n\n  <\/div>\n<\/article>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Paulownia Irrigation and Fertilization: Maximizing Yields Good draining soil is the basis. But to achieve its growth objectives (3 to 5 m per year), Paulownia needs to be managed as an intensive crop. The difference between a stunted tree and a valuable log depends on access to water and a rigorous NPK fertilization plan. Irrigation [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1,109],"tags":[],"class_list":["post-4837","post","type-post","status-publish","format-standard","hentry","category-non-classifiee","category-technical-route"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.7 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Irrigation and Fertilization of Paulownia: Technical Itinerary<\/title>\n<meta name=\"description\" content=\"How much water for Paulownia? 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