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  • Article
  • Open Access
22 Views
11 Pages

12 December 2025

Sustainable recycling of organic residues and industrial byproducts is crucial for soil fertility and environmental sustainability. This study evaluated the effects of clinker-tea-waste compost (CTC) on rice growth, nutrient uptake, and soil chemical...

  • Article
  • Open Access
49 Views
17 Pages

11 December 2025

Water scarcity is an increasingly critical global issue, particularly in arid regions like Morocco. Innovative approaches, such as the use of alternative water sources like landfill leachate, offer promising solutions. In this study, phosphate washin...

  • Article
  • Open Access
130 Views
16 Pages

Urea Coated with Iron and Zinc Oxide Nanoparticles Reduces Nitrogen Leaching in Sandy Soil and Improves the Performance of Young Corn Plants

  • Cleiton Farias de Oliveira,
  • Romildo da Silva Neves,
  • Thiago Filipe de Lima Arruda,
  • Sabrina dos Santos Costa,
  • Railene Hérica Carlos Rocha Araújo,
  • Ronaldo do Nascimento,
  • Alexandre Paiva da Silva,
  • Francisco Vaniés da Silva Sá and
  • Josinaldo Lopes Araujo Rocha

10 December 2025

Nitrogen (N) is the most widely used nutrient in agriculture in the form of urea, yet it is one of the least efficient in terms of application due to losses through volatilization and leaching. The combination of urea with micronutrient sources, espe...

  • Review
  • Open Access
650 Views
33 Pages

Biofertilizers for Enhanced Nitrogen Use Efficiency: Mechanisms, Innovations, and Challenges

  • Joaquín Herrero,
  • Adrián Ramírez-Santos,
  • Encarnación Díaz-Santos and
  • Gloria Torres-Cortés

3 December 2025

The extensive use of synthetic nitrogen fertilizers has sustained global food production for more than a century but at high environmental and energetic costs. Improving nitrogen use efficiency (NUE) has therefore become a key objective to maintain p...

  • Article
  • Open Access
220 Views
14 Pages

Exploring Dry Salmon Sludge as an Organic Nitrogen Source for Hazelnut (Corylus avellana L.) Orchard

  • Susana Cayunao,
  • Andrés Pérez-San Martín,
  • Emilio Jorquera-Fontena,
  • Vanessa Huerta-Mendoza,
  • Germán Tortosa,
  • Marysol Alvear,
  • Juan Ortíz,
  • Segun O. Oladele and
  • Gustavo Curaqueo

24 November 2025

The rapid expansion of the salmon industry has generated increasing amounts of waste sludge with negative environmental impacts. Sustainable alternatives, such as using stabilized sludge in agriculture, are needed to mitigate these effects. At the sa...

  • Article
  • Open Access
295 Views
26 Pages

Fermented Nettles: Bioactive Profile and Seasonal Variability

  • Romana Praženicová,
  • Andrei Larkov,
  • Kateřina Hanzelková,
  • Anton Korban,
  • Tomáš Křížek,
  • Veronika Hýsková,
  • Tomáš Ječmen,
  • Jakub Hraníček,
  • Denisa Vlčková and
  • Alena Gaudinová
  • + 4 authors

24 November 2025

In traditional horticulture, fermented nettles (FN) enhance plant growth and resilience. However, their precise mode of action remains unclear. This study aims to characterize the bioactive profile of FN and to evaluate their potential as biostimulan...

  • Article
  • Open Access
230 Views
19 Pages

Effects of Nitrate Source (Artificial and Fishpond) and UV Radiation on Physiological, Photosynthetic, and Biochemical Parameters of Porphyra dioica for Sustainable Integrated Multitrophic Aquaculture (IMTA)

  • Débora Tomazi Pereira,
  • Ignacio Moreu Badia,
  • Julia Vega,
  • Fabian López Palica,
  • David López Paniagua,
  • Nathalie Korbee and
  • Félix L. Figueroa

24 November 2025

The red macroalga Porphyra plays a key role in Integrated Multi-Trophic Aquaculture (IMTA) systems, acting both as a biofilter and as a source of bioactive compounds (BACs) with nutritional and photoprotective value. This study evaluated how nitrogen...

  • Review
  • Open Access
415 Views
20 Pages

24 November 2025

Nitrogen is an essential element required for bacterial homeostasis. It serves as a building block for the biosynthesis of macromolecules and provides precursors for secondary metabolites. Actinomycetes have developed the ability to use various nitro...

  • Review
  • Open Access
481 Views
29 Pages

21 November 2025

Nitrogen (N2), constituting the majority of Earth’s atmosphere, remains indispensable for biological systems and underpins modern agriculture and industry. Traditionally, the Haber–Bosch process has been essential for synthesizing ammonia...

  • Article
  • Open Access
298 Views
18 Pages

Permeable Organic Barriers as Effective Tools for Reducing Emissions of Nitrogen Compounds and PCBs from Manure to Groundwater

  • Jerzy Mirosław Kupiec,
  • Sebastian Szklarek,
  • Magdalena Urbaniak,
  • Arnoldo Font-Nájera,
  • Elżbieta Mierzejewska-Sinner,
  • Agnieszka Bednarek,
  • Jakub Wójcik and
  • Joanna Mankiewicz-Boczek

20 November 2025

Agricultural pollution, such as contamination from manure storage or leaking livestock buildings, often spreads through the catchment, affecting groundwater and surface water. An effective solution is the construction of permeable organic barriers. T...

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Nitrogen - ISSN 2504-3129