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Ammonium Biology: From Molecular Response to Fertilization
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State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, No. 71 East Beijing Road, Nanjing 210008, China
Dr. Soichi Kojima
Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
Department of Horticulture, Division of Applied Life Science, Graduate School, Gyeongsang National University (GNU), Jinju 52828, Republic of Korea
Department of Environmental and Agricultural Chemistry, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
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Ammonium Biology: From Molecular Response to Fertilization

Abstract submission deadline
31 October 2025
Manuscript submission deadline
31 December 2025
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Topic Information

Dear Colleagues,

We would like to invite you to contribute to the Topic "Ammonium Biology: From Molecular Response to Fertilization". Ammonium (NH4+) is a key nitrogen source in soils, yet it can be toxic at moderate concentrations, particularly when used as the primary nitrogen source. To address this challenge, our topic aims to explore how plants respond to ammonium and how genetic breeding or agronomic improvements can enhance crop tolerance to NH4+ fertilizers, thereby improving application efficiency. This topic will cover: (i) Plant Tolerance to Ammonium: Investigating recent advances in enhancing plant tolerance to NH4+ nutrients to improve nitrogen availability and plant health. (ii) Environmental Interactions: Examining the interactions between NH4+ nutrition and environmental factors, such as CO2 and O3 levels, droughts, high-temepratures, light, and heavy metal toxicity. (iii) Fertilizer Application and Agronomy: Analyzing the impact of different NH4+-N fertilizer forms and agronomic practices on utilization efficiency and plant tolerance. We seek comprehensive studies, reviews, brief reports, and communications that present the latest findings in plant responses to NH4+, from molecular mechanisms to practical fertilizer applications.. We look forward to your valuable contributions to this exciting and impactful field.

Dr. Dong-Wei Di
Dr. Soichi Kojima
Prof. Dr. Byoung Ryong Jeong
Prof. Dr. Monika Skowrońska
Topic Editors

Keywords

  • ammonium
  • ammonium toxicity
  • ammonium tolerance
  • molecular response mechanism
  • ammonium fertilizer
  • agronomic practices

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Agriculture
agriculture 		3.6 6.3 2011 18 Days CHF 2600 Submit
Agronomy
agronomy 		3.4 6.7 2011 17.2 Days CHF 2600 Submit
Environments
environments 		3.7 5.7 2014 19.2 Days CHF 1800 Submit
International Journal of Molecular Sciences
ijms 		4.9 9.0 2000 20.5 Days CHF 2900 Submit
Nitrogen
nitrogen 		2.3 2.8 2020 19.7 Days CHF 1200 Submit
Plants
plants 		4.1 7.6 2012 17.7 Days CHF 2700 Submit

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Published Papers (1 paper)

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24 pages, 4111 KiB  
Article
Evaluation of the Performance of a Nitrogen Treatment Plant in a Continental Mediterranean Climate: A Spanish Pig Farm Case Study
by Laura Escudero-Campos, Francisco J. San José, María del Pino Pérez Álvarez-Castellanos, Adrián Jiménez-Sánchez, Berta Riaño, Raúl Muñoz and Diego Prieto-Herráez
Nitrogen 2025, 6(3), 68; https://doi.org/10.3390/nitrogen6030068 - 14 Aug 2025
Abstract
This study presents a four-year evaluation (2020–2024) of an integrated climate mitigation project on a pig farm in Ávila, Spain, at an elevation of over 1100 m above sea level with continental climate conditions. The project aimed to reduce greenhouse gas emissions (GHG) [...] Read more.
This study presents a four-year evaluation (2020–2024) of an integrated climate mitigation project on a pig farm in Ávila, Spain, at an elevation of over 1100 m above sea level with continental climate conditions. The project aimed to reduce greenhouse gas emissions (GHG) and nitrogen pollution by implementing solid–liquid filtration followed by biological treatment in a 625 m3 Sequencing Batch Reactor (SBR) operating under a nitrification–denitrification (N-DN) regime. The SBR carried out four daily cycles, alternating aerobic and anoxic phases, with 5 and 8 m3 inlets. Aeration intensity and redox potential were continuously monitored to optimize bacterial activity. Analytical parameters (pH, electrical conductivity, solids content, nitrogen, phosphorus, and potassium) were measured using ISO methods and tracked frequently. Annual emission reductions were 75% for N2O, up to 97% for NH3, and 80% for N2. In the summer months, we observed higher efficiency reduction for N2, NH3, and NO2. Additionally, there was a 75% average reduction for COD and up to 92% for total GHG emissions. This real-world case study highlights the effectiveness of SBR-based N-DN systems for nutrient removal and emission reduction in high-altitude, climate-sensitive regions, contributing to EU nitrate directive compliance and circular economy practices. Full article
(This article belongs to the Topic Ammonium Biology: From Molecular Response to Fertilization)
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