{"id":2091,"date":"2025-02-07T09:03:46","date_gmt":"2025-02-07T08:03:46","guid":{"rendered":"https:\/\/ist.blogs.inrae.fr\/agronomy\/?p=2091"},"modified":"2025-02-07T09:05:07","modified_gmt":"2025-02-07T08:05:07","slug":"minimizing-the-potential-risk-of-soil-nitrogen-loss-through-optimal-fertilization-practices-in-intensive-agroecosystems","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/agronomy\/2025\/02\/07\/minimizing-the-potential-risk-of-soil-nitrogen-loss-through-optimal-fertilization-practices-in-intensive-agroecosystems\/","title":{"rendered":"Minimizing the potential risk of soil nitrogen loss through optimal fertilization practices in intensive agroecosystems"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><figure style=\"width: 380px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/media.springernature.com\/full\/springer-static\/image\/art%3A10.1007%2Fs13593-025-01006-5\/MediaObjects\/13593_2025_1006_Fig1_HTML.jpg\" alt=\"Fig. 1\" width=\"390\" height=\"221\" aria-describedby=\"Fig1\" \/><figcaption class=\"wp-caption-text\">Assessment of gross nitrification and N immobilization rates under long-term chemical fertilizer and manure application treatments. Photocredit: Jun Wang.<\/figcaption><\/figure>\n<div id=\"Abs1-content\" class=\"c-article-section__content\">\n<p>Nitrification and nitrogen (N) immobilization are important pathways in soil N transformations, involving soil N loss and retention, respectively. The ratio of nitrification to N immobilization generally reflects the potential risk of soil N loss. However, little is known about the response of this ratio to anthropogenic carbon (C) and N inputs, but also climate and soil conditions. Here, we aimed to elucidate, for the first time, the impacts of chemical fertilizer and manure application on the ratio of gross nitrification to N immobilization by using <sup>15<\/sup>N dilution technology, based on ten long-term fertilization trials spanning multiple climatic zones in eastern China. Results showed that manure application differentially increased gross N immobilization rather than nitrification compared to the chemical fertilizer treatment, leading to manure-induced decreases in gross nitrification to N immobilization ratio ranging from 1.2 to 93% across the sites. The decreased gross nitrification to N immobilization ratio in the manure treatment was mainly due to the increased ratio of bacteria to nitrifiers abundance. Manuring was more effective for a decrease in the gross nitrification to N immobilization ratio at sites characterized by high rainfall and low soil pH, as it prevented soil pH decline thereby favoring bacterial abundance and N immobilization. Consequently, manure application resulted in a substantial increase in soil total N accumulation, facilitated by increased microbial N immobilization that promoted microbial biomass. These findings suggest that substituting manure for chemical fertilizer in the areas with high rainfall and acidic soils promisingly reduces soil N loss risk, with positive consequences for soil N retention. This knowledge highlights the potential to reconcile soil N loss and fertility improvement through optimizing regional manure management, which offers valuable insights for the development of a tailored regional fertilization management strategy.<\/p>\n<blockquote>\n<p class=\"c-bibliographic-information__citation\">Wang, J., Zhang, L., Liu, K. <i>et al.<\/i> Minimizing the potential risk of soil nitrogen loss through optimal fertilization practices in intensive agroecosystems. <i>Agron. Sustain. Dev.<\/i> <b>45<\/b>, 9 (2025). https:\/\/doi.org\/10.1007\/s13593-025-01006-5<\/p>\n<\/blockquote>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nitrification and nitrogen (N) immobilization are important pathways in soil N transformations, involving soil N loss and retention, respectively. The ratio of nitrification to N immobilization generally reflects the potential risk of soil N loss. However, little is known about the response of this ratio to anthropogenic carbon (C) and N inputs, but also climate &#8230; <a title=\"Minimizing the potential risk of soil nitrogen loss through optimal fertilization practices in intensive agroecosystems\" class=\"read-more\" href=\"https:\/\/ist.blogs.inrae.fr\/agronomy\/2025\/02\/07\/minimizing-the-potential-risk-of-soil-nitrogen-loss-through-optimal-fertilization-practices-in-intensive-agroecosystems\/\" aria-label=\"Read more about Minimizing the potential risk of soil nitrogen loss through optimal fertilization practices in intensive agroecosystems\">Read more<\/a><\/p>\n","protected":false},"author":168,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-2091","post","type-post","status-publish","format-standard","hentry","category-soil-management"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/posts\/2091","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/users\/168"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/comments?post=2091"}],"version-history":[{"count":1,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/posts\/2091\/revisions"}],"predecessor-version":[{"id":2092,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/posts\/2091\/revisions\/2092"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/media?parent=2091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/categories?post=2091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/agronomy\/wp-json\/wp\/v2\/tags?post=2091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}