{"id":19702,"date":"2026-03-10T12:09:48","date_gmt":"2026-03-10T12:09:48","guid":{"rendered":"https:\/\/pfi-germany.de\/?p=19702"},"modified":"2026-03-10T12:12:16","modified_gmt":"2026-03-10T12:12:16","slug":"npk","status":"publish","type":"post","link":"https:\/\/pfi-germany.de\/en\/npk\/","title":{"rendered":"NPK"},"content":{"rendered":"<h3 class=\"wp-block-heading has-pfi-blue-color has-text-color has-link-color wp-elements-2845e50b2004767473970c05191443bf\" style=\"margin-bottom:var(--wp--preset--spacing--20)\">Herstellung wasserl\u00f6slicher NK, PK oder NPK-D\u00fcnger auf Basis von Biogas G\u00e4rrest und G\u00fclle<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-328c6305 wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-d56d7ed6 wp-block-group-is-layout-flex\" style=\"margin-bottom:0;padding-bottom:0\">\n<figure class=\"wp-block-image size-full is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik.png\" alt=\"\" class=\"wp-image-19713\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik.png 500w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik-300x300.png 300w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik-150x150.png 150w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik-50x50.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/NPK-Logo-mit-Grafik-12x12.png 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-98bb686d wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group has-global-padding is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-0b710646 wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-pfi-grey-background-color has-background is-nowrap is-layout-flex wp-container-core-group-is-layout-cbd023f1 wp-block-group-is-layout-flex\" style=\"border-radius:20px;padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10)\">\n<h6 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-ed53c8ae6f1a04d8e1d7931b77a7de10\" style=\"border-radius:20px\">Project Information<\/h6>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-658170e2 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top has-white-color has-pfi-blue-background-color has-text-color has-background has-link-color wp-elements-62a3e9cfb39762c23d9fd745bec7af00 is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:20px;padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);flex-basis:130px\">\n<h6 class=\"wp-block-heading\">Duration:        <\/h6>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>1 November 2024 \u2013 31 October 2027<\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-pfi-blue-color has-alpha-channel-opacity has-pfi-blue-background-color has-background is-style-default\"\/>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-f2b5d7df wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--10);margin-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-column is-vertically-aligned-top has-white-color has-pfi-blue-background-color has-text-color has-background has-link-color wp-elements-702bd9b300b86df469b0d56b5d179730 is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:20px;padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);flex-basis:130px\">\n<h6 class=\"wp-block-heading\">Project Sponsors: <\/h6>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Federal Ministry of Agriculture, Food and Regional Identity<\/li>\n\n\n\n<li>WIR! programme (Change through Innovation in the Region)<\/li>\n\n\n\n<li>Project Management J\u00fclich<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-pfi-blue-color has-alpha-channel-opacity has-pfi-blue-background-color has-background\"\/>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-f2b5d7df wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--10);margin-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-column is-vertically-aligned-top has-white-color has-pfi-blue-background-color has-text-color has-background has-link-color wp-elements-4cc9a2ab78bf080595714274e0906c45 is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:20px;padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--10);flex-basis:130px\">\n<h6 class=\"wp-block-heading\">Project Partners:<\/h6>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Biotechnologie Nordhausen GmbH<\/li>\n\n\n\n<li>K-UTEC AG Salt Technologies<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-d1c8e660 wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--10);margin-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-column is-vertically-aligned-top has-white-color has-text-color has-link-color wp-elements-d3fa56307e42e8180b1318963c8e0f5e is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:20px;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:200px\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bmleh.de\/EN\/Home\/home_node.html\"><img loading=\"lazy\" decoding=\"async\" width=\"1720\" height=\"1400\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024.png\" alt=\"\" class=\"wp-image-19708\" style=\"object-fit:cover\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024.png 1720w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-300x244.png 300w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-1024x833.png 1024w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-768x625.png 768w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-50x41.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-1600x1302.png 1600w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-1536x1250.png 1536w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/logo_bmel_foerderzusatz_2024-15x12.png 15w\" sizes=\"auto, (max-width: 1720px) 100vw, 1720px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/international.fnr.de\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"833\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1.jpg\" alt=\"\" class=\"wp-image-5320\" style=\"width:300px\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1.jpg 1600w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-300x156.jpg 300w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-1024x533.jpg 1024w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-768x400.jpg 768w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-50x26.jpg 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-1536x800.jpg 1536w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/05\/fnr_logo_rgb_1600px-1-18x9.jpg 18w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.btn-biotechnologie.de\/\"><img loading=\"lazy\" decoding=\"async\" width=\"268\" height=\"54\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-BTN.png\" alt=\"\" class=\"wp-image-19706\" style=\"object-fit:cover\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-BTN.png 268w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-BTN-50x10.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-BTN-18x4.png 18w\" sizes=\"auto, (max-width: 268px) 100vw, 268px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/www.k-utec.de\/en\/home\"><img loading=\"lazy\" decoding=\"async\" width=\"281\" height=\"79\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-K-UTec.png\" alt=\"\" class=\"wp-image-19707\" style=\"width:164px;height:auto\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-K-UTec.png 281w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-K-UTec-50x14.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/Logo-K-UTec-18x5.png 18w\" sizes=\"auto, (max-width: 281px) 100vw, 281px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-3a781681 wp-block-group-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--30);margin-bottom:var(--wp--preset--spacing--30);padding-top:0;padding-bottom:0\">\n<div class=\"gradient-separator\"><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignwide has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 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%\">\n<h2 class=\"wp-block-heading has-pfi-blue-color has-text-color has-link-color wp-elements-6a974289e32d63e80426c195fa141ad2\">Initial situation &amp; project description<\/h2>\n\n\n\n<p class=\"has-text-align-left translation-block\">Fertilizers containing nitrogen and phosphate play a key role in achieving high yields on agricultural land. At the same time, traditional fertilizer production is energy-intensive and associated with continuously rising costs. The <strong>overall objective <\/strong> of the project is to use fermentation residues and manure as a source of raw materials for the production of high-quality nitrogen and phosphate fertilizers.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28b55a6e wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"435\" height=\"473\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Oxidation.png\" alt=\"\" class=\"wp-image-19709\" style=\"width:320px\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Oxidation.png 435w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Oxidation-276x300.png 276w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Oxidation-50x54.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Oxidation-11x12.png 11w\" sizes=\"auto, (max-width: 435px) 100vw, 435px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full is-style-default\" style=\"margin-top:0;margin-bottom:0\"><img loading=\"lazy\" decoding=\"async\" width=\"502\" height=\"339\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Kreislauf.png\" alt=\"\" class=\"wp-image-19710\" style=\"object-fit:cover\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Kreislauf.png 502w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Kreislauf-300x203.png 300w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Kreislauf-50x34.png 50w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2026\/03\/N-Kreislauf-18x12.png 18w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>Energy-intensive production, rising costs, and increasing dependence on imports are key challenges in the use of nitrogen- and phosphorus-containing artificial fertilizers. The use of fermentation residues from biogas plants is one way to limit the use of synthetic fertilizers. However, direct fertilization has disadvantages. The typically high ammonium content in fermentation residues often results in undesirable emissions and fertilization that does not meet requirements. Therefore, this joint project aims to develop a new process for producing water-soluble potassium phosphate and nitrate fertilizers from fermentation residues. Water-soluble fertilizers enable crop fertilization tailored to requirements and are also high-priced. This considerably reduces the above-mentioned ecological problems and increases added value. The economic chances of success are also supported by the fact that biogas plants are often unable to fully utilize the heat released, which means that energy reserves are available at low cost for the concentration steps required for the crystallization of the fertilizer salts.<\/p>\n\n\n\n<p>Within the joint project, PFI focused on developing processes for separating ammonium and phosphate from fermentation residues and on the biological oxidation of NH4 to nitrate. Project partner BTN is concentrating on developing processes for the direct oxidation of ammonium in fermentation residues. The partner K-UTEC converts the nitrate and phosphate concentrates obtained into marketable fertilizers.<\/p>\n\n\n\n<p class=\"translation-block\">The project with the <strong>funding code FKZ 2224NR023A<\/strong>is financially supported by the Federal Ministry of Food and Agriculture (BMLEH) as part of the \u201cSustainable Renewable Resources\u201d funding program via the project management agency FNR.<\/p>\n\n\n\n<div class=\"wp-block-group alignfull has-black-color has-white-background-color has-text-color has-background has-link-color wp-elements-0a5e9a1ebae03ab835ce3894a0876227 has-global-padding is-layout-constrained wp-container-core-group-is-layout-53f4c9c0 wp-block-group-is-layout-constrained\" style=\"border-style:none;border-width:0px;border-top-left-radius:50px;border-top-right-radius:100px;border-bottom-left-radius:200px;border-bottom-right-radius:0px;margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--30);padding-right:0;padding-bottom:var(--wp--preset--spacing--10);padding-left:0\">\n<h2 class=\"wp-block-heading has-text-align-center has-pfi-blue-color has-text-color has-link-color has-x-large-font-size wp-elements-abcc05539f1e72c20020f755ea32cccb\">Any questions about the project? <\/h2>\n\n\n\n<div class=\"wp-block-group alignwide has-global-padding is-content-justification-center is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center has-pfi-blue-color has-text-color has-link-color wp-elements-67ca7248d2df9f684ac01200ef8559e3 is-layout-flow wp-block-column-is-layout-flow\" style=\"font-style:normal;font-weight:800\">\n<h2 class=\"wp-block-heading has-text-align-center has-large-font-size\">Your Contact Person:<\/h2>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-59e203da wp-block-columns-is-layout-flex\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-pfi-grey-background-color has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-radius:20px;padding-top:var(--wp--preset--spacing--10);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--10);padding-left:var(--wp--preset--spacing--20);flex-basis:100%\">\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-63331d0c wp-block-group-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:0;padding-bottom:var(--wp--preset--spacing--20);padding-left:0\">\n<figure class=\"wp-block-image size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"1200\" src=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn.jpg\" alt=\"\" class=\"wp-image-2255\" style=\"border-radius:10px;width:150px\" srcset=\"https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn.jpg 960w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn-240x300.jpg 240w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn-819x1024.jpg 819w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn-768x960.jpg 768w, https:\/\/pfi-germany.de\/wp-content\/uploads\/2025\/01\/Dr._Fiehn-50x63.jpg 50w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-group is-vertical is-content-justification-center is-layout-flex wp-container-core-group-is-layout-b6c1f246 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading has-text-align-left has-pfi-blue-color has-text-color has-link-color wp-elements-6450ab336733845f2fb2e5efffa931a9\" style=\"font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.86), 1.5rem);\"><strong><strong><strong><strong>Dr. Thomas Fiehn<\/strong><\/strong><\/strong><\/strong><\/h3>\n\n\n\n<p class=\"has-text-align-center\"><strong><strong><strong><strong><strong><strong><strong><strong><strong>Biotechnology<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons has-custom-font-size has-white-background-color has-background has-link-color has-small-font-size wp-elements-e7a6d03abe80bb91d434a11af640dae8 is-layout-flex wp-block-buttons-is-layout-flex\" style=\"border-radius:10px;font-style:normal;font-weight:1000\">\n<div class=\"wp-block-button has-custom-font-size has-small-font-size\" style=\"font-style:normal;font-weight:1000\"><a class=\"wp-block-button__link has-pfi-blue-color has-white-background-color has-text-color has-background has-link-color wp-element-button\" href=\"tel:+4963312490844\" style=\"border-radius:10px\" target=\"_blank\" rel=\"noreferrer noopener\">\ud83d\udcde +49 6331 2490 844<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons has-custom-font-size has-white-background-color has-background has-link-color has-small-font-size wp-elements-ff92175df13eed4fb468f34fc7c34348 is-layout-flex wp-block-buttons-is-layout-flex\" style=\"border-radius:10px;font-style:normal;font-weight:1000\">\n<div class=\"wp-block-button has-custom-font-size has-small-font-size\" style=\"font-style:normal;font-weight:1000\"><a class=\"wp-block-button__link has-pfi-blue-color has-white-background-color has-text-color has-background has-link-color wp-element-button\" href=\"mailto:thomas.fiehn@pfi-biotechnology.de\" style=\"border-radius:10px\" target=\"_blank\" rel=\"noreferrer noopener\">\u2709\ufe0f  write an email <\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-right:0;padding-left:0\">\n<div class=\"wp-block-group alignfull is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-023ea1b8 wp-block-group-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-top:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20)\">\n<div class=\"gradient-separator-up\"><\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-container-content-0733e5d0\"><strong>Sign up for our newsletter to stay up to date.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-container-content-0733e5d0\">Did you enjoy our blog article? Then sign up for our newsletter today! Published quarterly, it provides exciting insights into all things PFI. Stay informed about the latest topics in research, development, and testing\u2014always up to date!&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-10860990 wp-block-buttons-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--10);padding-bottom:var(--wp--preset--spacing--10)\">\n<div class=\"wp-block-button has-custom-font-size\" style=\"font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.708), 1.3rem);\"><a class=\"wp-block-button__link has-white-color has-pfi-blue-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/pfi-germany.de\/en\/newsletteranmeldung\/\" style=\"padding-right:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">Newsletter Registration<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p class=\"translation-block\">Fertilizers containing nitrogen and phosphate play a key role in achieving high yields on agricultural land. At the same time, traditional fertilizer production is energy-intensive and associated with continuously rising costs. The <strong>overall objective <\/strong> of the project is to use fermentation residues and manure as a source of raw materials for the production of high-quality nitrogen and phosphate fertilizers.<\/p>","protected":false},"author":4,"featured_media":19713,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,61],"tags":[85,45,64,83,84],"class_list":["post-19702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-forschungsprojekte","category-laufende-forschungsprojekte","tag-bioraffinerietechnik","tag-biotechnologie","tag-forschung","tag-kreislaufwirtschaft","tag-stoffstrommanagement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NPK - Pr\u00fcf- und Forschungsinstitut Pirmasens e.V.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pfi-germany.de\/en\/npk\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NPK - Pr\u00fcf- und Forschungsinstitut Pirmasens e.V.\" \/>\n<meta property=\"og:description\" content=\"Stickstoff- und phosphathaltige D\u00fcnger spielen eine zentrale Rolle, um hohe Ertr\u00e4ge auf den landwirtschaftlichen Fl\u00e4chen zu erzielen. 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