{"id":36118,"date":"2025-01-24T18:58:11","date_gmt":"2025-01-24T13:28:11","guid":{"rendered":"https:\/\/www.nextias.com\/ca\/?p=36118"},"modified":"2025-01-24T18:58:12","modified_gmt":"2025-01-24T13:28:12","slug":"nitrogen-use-efficiency","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/24-01-2025\/nitrogen-use-efficiency","title":{"rendered":"Nitrogen Use Efficiency"},"content":{"rendered":"\n<p><strong>Syllabus: GS3\/ Agriculture<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Context<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A report by the Food and <strong>Agriculture Organization of the United Nations (FAO),<\/strong> highlighted that the rise in nitrogen fertilizers has resulted in biodiversity loss and exacerbated climate change.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>About<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nitrogen is an essential component of food constituents, particularly amino acids and proteins required for the growth of plants, animals, and humans.<\/li>\n\n\n\n<li><strong>Improving Nutrient use efficiency (NUE)is critical for;<\/strong>\n<ul class=\"wp-block-list\">\n<li>Reducing excessive use of nitrogen fertilizers,<\/li>\n\n\n\n<li>Mitigating environmental pollution, such as nitrate leaching and greenhouse gas emissions,<\/li>\n\n\n\n<li>Enhancing crop yields.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Findings of the Study<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nitrogen Use Trends:<\/strong> Humans introduce approximately <strong>150 teragrams (Tg)<\/strong> of reactive nitrogen annually through agriculture and industry, over twice the pre-industrial levels.\n<ul class=\"wp-block-list\">\n<li>This could rise to <strong>600 Tg per year by 2100<\/strong>, driven by climate change, increasing nitrogen losses into the environment.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Contributors to Nitrogen Pollution: <\/strong>Livestock farming accounts for about <strong>one-third<\/strong> of human-induced nitrogen emissions.\n<ul class=\"wp-block-list\">\n<li>Synthetic fertilizers, land-use changes, and manure emissions further exacerbate nitrogen pollution.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Regional Disparities: <\/strong>Nitrogen pollution is most severe in regions like <strong>North America, Western Europe, and parts of Asia,<\/strong> where fertilizers have been overused for decades.\n<ul class=\"wp-block-list\">\n<li>Conversely, in some low- and middle-income countries, restricted access to fertilizers leads to nitrogen depletion, soil degradation, and reduced crop productivity.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Impacts of Nitrogen Pollution<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Health Impacts:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>It causes methemoglobinemia (blue baby syndrome) <\/strong>in infants by reducing blood&#8217;s oxygen-carrying capacity.<\/li>\n\n\n\n<li><strong>It is linked to cancers, reproductive issues<\/strong>, and thyroid problems from long-term nitrate exposure.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Environmental Impacts:<\/strong>\n<ul class=\"wp-block-list\">\n<li>It leads to <strong>eutrophication<\/strong>, harmful algal blooms, and oxygen-depleted <strong>&#8220;dead zones&#8221;<\/strong> in water bodies.<\/li>\n\n\n\n<li>It contributes to climate change through<strong> nitrous oxide<\/strong> emissions, <strong>300 times <\/strong>more potent than carbon dioxide.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Policy recommendations<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fertilizer Production: <\/strong>The fertilizer industry should minimize greenhouse gas emissions during nitrogen fertilizer production.\n<ul class=\"wp-block-list\">\n<li>Efforts should also focus on reducing wasteful losses during storage, transportation, and application.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Biological Nitrogen Fixation:<\/strong> Governments should promote leguminous crops like soybean and alfalfa to enhance nitrogen fixation through sustainable crop rotations.<\/li>\n\n\n\n<li><strong>National Climate Commitments:<\/strong> Integrate sustainable nitrogen management into <strong>nationally determined contributions (NDCs)<\/strong> and mitigation actions, targeting reduced nitrous oxide emissions to align with the <strong>Paris Agreement\u2019s 1.5 \u00b0C goal.<\/strong><\/li>\n\n\n\n<li><strong>Sustainable Practices:<\/strong> Encourage investment in high-efficiency, low-emission fertilizers and promote recycling organic residues to improve system efficiency and reduce environmental pollution.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Concluding remarks<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sustainable nitrogen management is integral to achieving the <strong>Sustainable Development Goals (SDGs) by 2030,<\/strong> particularly those focusing on hunger eradication, health improvement, clean water, climate action, and preserving ecosystems.<\/li>\n\n\n\n<li>Hence governments, industries, and individuals must collectively work towards achieving this goal to ensure a resilient and sustainable future for all.<\/li>\n<\/ul>\n\n\n\n<p><strong>Source: <\/strong><a href=\"https:\/\/openknowledge.fao.org\/items\/22a5f68b-9d0c-4e40-aaac-9ef19b29fe58\" target=\"_blank\" rel=\"noopener\"><strong>FAO<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A report by the Food and Agriculture Organization of the United Nations (FAO), highlighted that the rise in nitrogen fertilizers has resulted in biodiversity loss and exacerbated climate change.<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-36118","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/36118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=36118"}],"version-history":[{"count":1,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/36118\/revisions"}],"predecessor-version":[{"id":36119,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/36118\/revisions\/36119"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=36118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=36118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=36118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}