Monitoring Nitrogen in Soils and Plants: Recent Methods, Soil Properties and Plant Characteristics

A special issue of Nitrogen (ISSN 2504-3129).

Deadline for manuscript submissions: 30 December 2025 | Viewed by 99

Special Issue Editors


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Guest Editor
Department of Environmental Science, Westfield State University, Westfield, MA 01085, USA
Interests: microplastic pollution; soil organic carbon; Fe minerals; water brownification; N mineralization

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Guest Editor
Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546-0091, USA
Interests: nutrient biogeochemistry; agroecosystem function; sustainable agriculture; plant-soil interface
Boyce Thompson Institute, Ithaca, NY 14853, USA
Interests: plant biochemistry; plant protection; plant-herbivore interaction; chemical ecology

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Co-Guest Editor
The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
Interests: legumes; food systems; biological nitrogen fixation; value chains; intercropping; crop rotations; diversification

Special Issue Information

Dear Colleagues,

The efficient monitoring of nitrogen in soils and plants is crucial for optimizing plant production while minimizing environmental impacts. Recent advancements in analytical techniques have significantly improved our ability to measure nitrogen dynamics in soils and plants in various ecosystems. This Special Issue explores cutting-edge methods for monitoring and assessing nitrogen in soils and plants, with a focus on their integration into sustainable management practices. Emphasis is placed on the relationships between management practices; nitrogen availability; and soil properties, such as texture, organic matter content, and microbial activity. Additionally, this Issue explores plant traits as responding to nitrogen dynamics, including nutrient uptake, growth, primary and secondary metabolism, and responses to both abiotic and biotic stressors. By examining the latest research on nitrogen monitoring, this Issue invites contributions that delve into nitrogen's multifaceted roles from molecular, physiological, behavioural, and ecological perspectives, and aims to provide a comprehensive understanding of how to manage nitrogen resources more effectively, supporting both agricultural efficiency and environmental conservations.

Dr. Lili Lei
Dr. Rebecca McGrail
Dr. Fumin Wang
Prof. Dr. Pete Iannetta
Guest Editors

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Keywords

  • nitrogen dynamics
  • soil properties
  • plant characteristics
  • envionrmental impacts
  • methods
  • manageemtn practices

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Published Papers (1 paper)

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Research

22 pages, 375 KiB  
Article
Impact of Nitrogen Fertilization on Rosemary: Assessment of Physiological Traits, Vegetation Indices, and Environmental Resource Use Efficiency
by Christos A. Dordas
Nitrogen 2025, 6(2), 33; https://doi.org/10.3390/nitrogen6020033 - 2 May 2025
Abstract
Rosemary (Salvia rosmarinus L.) is a versatile and resilient plant with significant culinary, medicinal, and ecological value. This study evaluates the impact of four nitrogen (N) fertilization levels (0, 50, 100, and 150 kg N ha⁻¹) on the morphological, physiological, and agronomic [...] Read more.
Rosemary (Salvia rosmarinus L.) is a versatile and resilient plant with significant culinary, medicinal, and ecological value. This study evaluates the impact of four nitrogen (N) fertilization levels (0, 50, 100, and 150 kg N ha⁻¹) on the morphological, physiological, and agronomic traits, as well as vegetative indices, of rosemary over two growing seasons (2022 and 2023). . The results indicate that plant height and leaf area index (LAI) increased with N application. Additionally, physiological characteristics such as chlorophyll content, photosynthetic efficiency, and assimilation rates (A) increased by an average of 32%, 17%, and 55%, respectively, compared to the control. Biomass production also improved with N fertilization, with yields rising by 32% in 2022 and 58% in 2023. Furthermore, both essential oil concentration and essential oil yield were enhanced by N application. Radiation use efficiency (RUE), water use efficiency (WUE), agronomic efficiency (AE), and partial factor productivity (PFP) also increased, indicating more efficient utilization of environmental resources. Moreover, higher N rates consistently enhanced vegetation indices, reflecting improved plant health, greenness, biomass, photosynthetic activity, and energy utilization. Therefore, this study highlights that the optimal N range appears to balance biomass yield and essential oil yield while maximizing the efficiency of environmental resource use. Full article
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