{"id":2418,"date":"2025-12-19T21:42:54","date_gmt":"2025-12-19T21:42:54","guid":{"rendered":"https:\/\/www.tarleton.edu\/tiaer\/?page_id=2418"},"modified":"2026-04-07T16:01:27","modified_gmt":"2026-04-07T16:01:27","slug":"nutrient-tracking-tool-ntt","status":"publish","type":"page","link":"https:\/\/www.tarleton.edu\/tiaer\/modeling-and-analysis\/nutrient-tracking-tool-ntt\/","title":{"rendered":"Nutrient Tracking Tool (NTT)"},"content":{"rendered":"\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">The <a href=\"http:\/\/ntt.tiaer.tarleton.edu\">Nutrient Tracking Tool (NTT)<\/a> is a free web-based tool that allows farmers and land managers to estimate how management practices affect environmental and economic outcomes, including crop yield, nutrient losses, soil carbon sequestration, sediment erosion, and profitability. NTT models agronomic outcomes using the <a href=\"https:\/\/epicapex.tamu.edu\/\">Agricultural Policy Environmental eXtender (APEX)<\/a> model and economic outcomes using the Farm Economic Model (FEM).<\/mark><\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">NTT has built-in soils data from Web Soil Survey (USDA-NRCS) and weather data from the PRISM database (PRISM Climate Group, Oregon State University), which allows NTT to be run with just management information. NTT has successfully assisted decision makers in adopting management practices to reduce nutrient pollution and improve water quality without sacrificing agricultural productivity.<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"686\" src=\"https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image-1024x686.png\" alt=\"NTT uses inputs from a variety of sources to run both APEX and FEM which produce the model outputs.\" class=\"wp-image-2419\" srcset=\"https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image-1024x686.png 1024w, https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image-300x201.png 300w, https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image-597x400.png 597w, https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image-768x515.png 768w, https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/image.png 1085w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>NTT can estimate the impacts of a wide range of best management practices (BMPs) including cultural &amp; structural practices. <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">No-Till &amp; Reduced Tillage<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Manure &amp; Nutrient Management (Rate, Timing, Placement, Source)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Crop Rotation &amp; Cover Crops<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Land use conversion<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Grazing Practices (Including Fencing)<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Irrigation Management<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Tile Drain Management<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Grassed Waterways<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Constructed Wetlands, Reservoirs, &amp; Ponds<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Forest &amp; Grassland Buffers<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Terraces &amp; Land Levelling<\/mark><\/li>\n\n\n\n<li><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Contour Buffers<\/mark><\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">NTT Version &amp; Fact Sheet<\/mark><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/ntt.tiaer.tarleton.edu\/welcomes\/new?locale=en\">Nutrient Tracking Tool Base Version<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/ntt-re.tiaer.tarleton.edu\/welcomes\/new?locale=en\">Nutrient Tracking Tool Research and Education Version<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.tarleton.edu\/tiaer\/wp-content\/uploads\/sites\/59\/2025\/12\/Nutrient-Tracking-Tool-fact-sheet.pdf\" data-type=\"attachment\" data-id=\"2421\">NTT Fact Sheet<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-tarleton-black-color\">Published Papers on NTT<\/mark><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/doi.org\/10.2489\/jswc.66.6.400\">Nutrient Tracking Tool\u2014a user-friendly tool for calculating nutrient reductions for water quality trading<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/doi.org\/10.2489\/jswc.70.5.115A\">Evaluating Nutrient Tracking Tool and simulated conservation practices<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/doi.org\/10.2489\/jswc.2024.00042\">Estimating soil carbon change using the web-based Nutrient Tracking Tool (NTT) with APEX<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/doi.org\/10.1016\/j.agwat.2016.07.009\">Framework to parameterize and validate APEX to support deployment of the nutrient tracking tool<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2020.138485\" data-type=\"link\" data-id=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2020.138485\">Crop growth, hydrology, and water quality dynamics in agricultural fields across the Western Lake Erie Basin: Multi-site verification of the Nutrient Tracking Tool (NTT)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/doi.org\/10.1007\/s11368-023-03521-y\">Assessing nutrient and sediment load reduction potential of vegetation by utilizing the nutrient tracking tool at the field and watershed scale in a Great Lakes priority watershed<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Nutrient Tracking Tool (NTT) is a free web-based tool that allows farmers and land managers to estimate how management practices affect environmental and economic outcomes, including crop yield, nutrient &#8230;<\/p>\n","protected":false},"author":1045,"featured_media":0,"parent":585,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-fullwidth.php","meta":{"_acf_changed":false,"inline_featured_image":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"class_list":["post-2418","page","type-page","status-publish","hentry"],"acf":[],"coauthors":[],"author_meta":{"author_link":"https:\/\/www.tarleton.edu\/tiaer\/author\/dmenefee\/","display_name":"dmenefee"},"relative_dates":{"created":"Posted 4 months ago","modified":"Updated 6 days ago"},"absolute_dates":{"created":"Posted on December 19, 2025","modified":"Updated on April 7, 2026"},"absolute_dates_time":{"created":"Posted on December 19, 2025 9:42 pm","modified":"Updated on April 7, 2026 4:01 pm"},"featured_img_caption":"","featured_img":false,"series_order":"","_links":{"self":[{"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/pages\/2418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/users\/1045"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/comments?post=2418"}],"version-history":[{"count":8,"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/pages\/2418\/revisions"}],"predecessor-version":[{"id":2506,"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/pages\/2418\/revisions\/2506"}],"up":[{"embeddable":true,"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/pages\/585"}],"wp:attachment":[{"href":"https:\/\/www.tarleton.edu\/tiaer\/wp-json\/wp\/v2\/media?parent=2418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}