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  • Article
  • Open Access

Identification and Expression Patterns of Four Key Nitrogen Assimilation Enzyme Gene Families in Malus domestica

  • Tong Li,
  • Longxin Luo,
  • Zhi Li,
  • Ziquan Feng,
  • Qi Zhang,
  • Shuo Ma,
  • Xinyi Li,
  • Huaina Gao,
  • Minmin Zhou and
  • Shang Wu
  • + 3 authors
Nitrogen2025, 6(4), 99;https://doi.org/10.3390/nitrogen6040099 
(registering DOI)

5 November 2025

Nitrogen assimilation is vital for apple growth, yield, and quality, with nitrate reductase (NIA), nitrite reductase (NIR), glutamine synthetase (GS), and glutamate synthase (GOGAT) serving as key regulatory enzymes. This study systematically identif...

  • Article
  • Open Access
47 Views
15 Pages

Wheat Plants Reduce N2O Emissions from Upland Soil Subject to Transient and Permanent Waterlogging

  • Mubashir Husnain,
  • Pablo L. Ribeiro,
  • Britta Pitann and
  • Karl Hermann Mühling

3 November 2025

Climate change is expected to increase the frequency of extreme soil moisture events, such as winter waterlogging followed by spring drought, particularly in temperate regions of Europe, North America and Northeast China. While N2O emissions from pad...

  • Review
  • Open Access
255 Views
28 Pages

30 October 2025

This review examines the current status and future potential of plasma-induced acidification (PIA) as a sustainable method for managing nitrogen-rich organic waste streams such as livestock slurry and digestate. Conventional acidification using sulfu...

  • Article
  • Open Access
265 Views
14 Pages

Influence of Fertigation Regimes on Nitrogen Concentration in Apple (Malus × domestica Borkh.) Leaves at Different Age Stages

  • Antun Šokec,
  • Goran Fruk,
  • Mihaela Šatvar Vrbančić,
  • Kristijan Konopka,
  • Tomislav Karažija and
  • Marko Petek

22 October 2025

Nitrogen (N) deficiency in apples (Malus × domestica Borkh.) leads to characteristic physiological symptoms, including leaf and fruit discoloration. Fertigation, i.e., the application of dissolved fertilizers, can significantly improve the grow...

  • Article
  • Open Access
219 Views
15 Pages

Effect of Integrated Nutrient Management Through Targeted Yield Precision Model on Soil Microbes, Root Morphology, Productivity of Hybrid Castor on a Non-Calcareous Alfisol

  • Abishek Ravichandran,
  • Santhi Rangasamy,
  • Maragatham Subramaniam,
  • Gopalakrishnan Myleswami,
  • Dhinesh Vadivel,
  • Poovarasan Thangavel,
  • Naveenkumar Arumugam,
  • Vinothini Nedunchezhiyan and
  • Dineshkumar Chandrasekar

20 October 2025

Precision application of fertiliser nutrients based on soil-available nutrients is a vital means of increasing castor (Ricinus communis L.) productivity. Fertiliser application based on the targeted yield model under inorganic fertilisers alone and I...

  • Article
  • Open Access
334 Views
13 Pages

The Impact of Co-Inoculation with Bradyrhizobium japonicum and Azospirillum brasilense on Cowpea Symbiosis and Growth

  • Luiz Eduardo de Morais Fernandes Fontes,
  • Guilherme Cristyan Garcia Penha,
  • Ana Carina da Silva Cândido,
  • Cid Naudi Silva Campos,
  • Alek Sandro Dutra,
  • Márcio Dias Pereira and
  • Charline Zaratin Alves

16 October 2025

Biological nitrogen (N) fixation is a well-established practice in various legumes, such as soybeans. However, it has not been widely studied in cowpeas (Vigna unguiculata L. Walp). In this context, it is important to understand how the application o...

  • Article
  • Open Access
357 Views
24 Pages

13 October 2025

Background: In this study, hydroponic experiments were conducted to examine the roles of sulphur (S), calcium (Ca), and nitric oxide (NO) in alleviating salt stress (20 mM NaCl) in tomato (Solanum lycopersicum L.) seedlings. Methods: Analyses include...

  • Review
  • Open Access
608 Views
30 Pages

Nitrogen Eutrophication in Chinese Aquatic Ecosystems: Drivers, Impacts, and Mitigation Strategies

  • Armstrong Ighodalo Omoregie,
  • Muhammad Oliver Ensor Silini,
  • Lin Sze Wong and
  • Adharsh Rajasekar

4 October 2025

Nitrogen eutrophication represents a significant environmental challenge in Chinese aquatic ecosystems, exacerbated by rapid agricultural intensification, industrial expansion, and urban development. This review consolidates existing knowledge on the...

  • Article
  • Open Access
380 Views
18 Pages

1 October 2025

Crops nitrogen supply through the in situ mineralization of soil organic matter is a critical process for plant nutrition. However, accurately estimating the contribution of mineralization remains challenging. The complexity of biological, chemical,...

  • Article
  • Open Access
408 Views
14 Pages

Role of Fungi in N2O Emissions from Nitrogen-Fertilized Lawn Soil

  • Zhifeng Xun,
  • Mingzhu Zhao,
  • Xueya Zhao,
  • Mi Wang,
  • Yujing Liu,
  • Xueying Han,
  • Yiming Zhang,
  • Yanhua Wu and
  • Zhi Quan

1 October 2025

Urban lawns are a predominant form of vegetation in sports grounds and greenbelts. Nitrogen (N) fertilization is widely used to sustain lawn productivity. However, it also promotes nitrous oxide (N2O) emissions, a potent greenhouse gas. The microbial...

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Nitrogen - ISSN 2504-3129Creative Common CC BY license