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1,573 Results Found

  • Article
  • Open Access
4 Citations
2,062 Views
16 Pages

21 August 2024

In order to study the effect of freeze−thaw cycles on the content of available nitrogen in soils of different crops and obtain an in-depth understanding of changes in soil fertility and soil environment in cold regions, a laboratory simulation...

  • Article
  • Open Access
3 Citations
1,922 Views
12 Pages

14 March 2024

Nitrogen loss is an unavoidable problem during organic waste composting, while exogenous microbial inoculation is a promising strategy for reducing nitrogen loss and improving compost quality. This study was designed to probe available nitrogen level...

  • Article
  • Open Access
13 Citations
2,854 Views
27 Pages

3 November 2020

Application of nitrogen (N) in contrastive chemical form changes availability of soil nutrients, affecting crop response. This hypothesis was evaluated based on field experiments conducted in 2015/16 and 2016/2017. The experiment consisted of three n...

  • Article
  • Open Access
3 Citations
4,332 Views
15 Pages

26 December 2019

We recently proposed a simple method for estimating total nitrogen content in paddy soil. In this method, soil is extracted with a commercial 3% hydrogen peroxide (H2O2) solution at 25 °C for 40 h, and electrical conductivity (EC (H2O2)) of the e...

  • Article
  • Open Access
6 Citations
2,723 Views
12 Pages

24 August 2020

A process for reducing the nitrogen (N) application rate while maintaining sweet potato yield urgently needs to be determined. A two-year pot experiment was conducted with three N management strategies to explore the mechanism underlying yield increa...

  • Article
  • Open Access
21 Citations
4,694 Views
10 Pages

21 January 2022

Common grassland management practices affect plant and soil element stoichiometry, but the primary environmental factors driving variation in plant C/N ratios for different species in different types of grassland management remain poorly understood....

  • Article
  • Open Access
50 Citations
5,400 Views
22 Pages

Effects of Nitrogen Availability on the Antioxidant Activity and Carotenoid Content of the Microalgae Nephroselmis sp

  • Noémie Coulombier,
  • Elodie Nicolau,
  • Loïc Le Déan,
  • Vanille Barthelemy,
  • Nathalie Schreiber,
  • Pierre Brun,
  • Nicolas Lebouvier and
  • Thierry Jauffrais

29 August 2020

Nephroselmis sp. was previously identified as a species of interest for its antioxidant properties owing to its high carotenoid content. In addition, nitrogen availability can impact biomass and specific metabolites’ production of microalgae. T...

  • Article
  • Open Access
2 Citations
1,952 Views
25 Pages

The Effect of Eco-Friendly/Sustainable Agricultural Practices (Legume Green Manure and Compost Soil Amendment) on a Tobacco Crop Grown Under Deficit Irrigation

  • Maria Isabella Sifola,
  • Linda Carrino,
  • Eugenio Cozzolino,
  • Mario Palladino,
  • Mariarosaria Sicignano,
  • Daniele Todisco and
  • Luisa del Piano

19 January 2025

A field experiment was conducted in 2018 at Marciano della Chiana (Arezzo, AR, Central Italy) with the main aim of investigating the effect of soil amendment with organic fraction municipal solid waste (OFMSW) compost and legume green manuring (Vicia...

  • Article
  • Open Access
25 Citations
5,677 Views
15 Pages

8 August 2019

Spectral reflectance measurements collected from hyperspectral and multispectral radiometers have the potential to be a management tool for detecting water and nutrient stress in turfgrass. Hyperspectral radiometers collect hundreds of narrowband ref...

  • Article
  • Open Access
12 Citations
3,248 Views
13 Pages

Feasibility of Near-Infrared Spectroscopy for Rapid Detection of Available Nitrogen in Vermiculite Substrates in Desert Facility Agriculture

  • Pengfei Zhao,
  • Jianfei Xing,
  • Can Hu,
  • Wensong Guo,
  • Long Wang,
  • Xiaowei He,
  • Zhengxin Xu and
  • Xufeng Wang

Fast and precise estimation of the available nitrogen content in vermiculite substrates promotes prescription fertilization in desert facility agriculture. This study explored near-infrared spectroscopy for rapid detection of the available nitrogen c...

  • Article
  • Open Access
596 Views
23 Pages

Synergistic Effects of Nitrogen Application Enhance Drought Resistance in Machilus yunnanensis Seedlings

  • Jiawei Zhou,
  • Mei Luo,
  • Peng Ning,
  • Songyin Gong,
  • Xiaomao Cheng and
  • Xiaoxia Huang

17 October 2025

Drought poses a severe challenge to ornamental tree growth under climate change. This study employed a 2 × 4 factorial design—with two soil moisture levels (80–85% vs. 50–55% field capacity) and four nitrogen treatments (NN: n...

  • Article
  • Open Access
1 Citations
1,071 Views
27 Pages

Control of the Nitriding Process of AISI 52100 Steel in the NH3/N2 Atmosphere

  • Jerzy Michalski,
  • Tadeusz Frączek,
  • Rafał Prusak,
  • Agata Dudek,
  • Magdalena Kowalewska-Groszkowska and
  • Maciej Major

26 June 2025

This paper proposes a mathematical description of nitriding atmospheres obtained from a one-component ammonia ingoing atmosphere and a two-component ammonia inlet nitrogen-diluted atmosphere. The Fe-N phase equilibrium diagrams of the nitriding atmos...

  • Article
  • Open Access
793 Views
15 Pages

21 May 2025

Uncertainties regarding the responses of soil-available nitrogen and phosphorus (i.e., ammonium nitrogen, NH4+–N; nitrate nitrogen, NO3−–N; available phosphorus, AP) to global changes pose significant challenges to predicting future...

  • Article
  • Open Access
33 Citations
3,209 Views
15 Pages

13 April 2022

Nitrogen fertilization is a simple and effective field management strategy for increasing plant productivity, but the regulatory mechanisms of nitrogen forms and proportions on soil nutrients and plant growth remain unclear. Therefore, we investigate...

  • Article
  • Open Access
33 Citations
4,580 Views
17 Pages

The Correlation between Soil Nutrient and Potato Quality in Loess Plateau of China Based on PLSR

  • Yingying Xing,
  • Xiaoli Niu,
  • Ning Wang,
  • Wenting Jiang,
  • Yaguang Gao and
  • Xiukang Wang

20 February 2020

Potato tuber quality is influenced by the interaction of soil nutrients. Hence, simple correlation analysis cannot accurately reflect the true relationship between soil nutrients and potato tuber quality. In this study, potato tuber quality and soil...

  • Article
  • Open Access
1 Citations
784 Views
16 Pages

Evaluation of Soil Fertility in Alpine Shrub Communities of the Qilian Mountains, Northwest China

  • Jian Ma,
  • Qi Feng,
  • Guang Li,
  • Wei Liu,
  • Peng Chen,
  • Ning Li,
  • Wanjian Qian,
  • Yufeng Teng,
  • Xiaopeng Li and
  • Jing Li

28 February 2025

Understanding soil fertility is significant for the restoration and scientific management of shrub vegetation in the Qilian Mountains. This study focused on the soils associated with five common alpine shrub species—Salix gilashanica, Potentill...

  • Article
  • Open Access
695 Views
12 Pages

Thermal Modulation of Leaf Nitrogen Forms in Chinese Fir Under Soil-Warming Conditions

  • Xing Chen,
  • Lijuan Zhu,
  • Zhijie Yang,
  • Caixia Shen,
  • Yin Li,
  • Zexuan Tang and
  • Yankun Zhu

4 June 2025

While soil warming has been demonstrated to significantly alter the processes of the nitrogen cycle in forest ecosystems, how leaf-available nitrogen, representing the primary forms of nitrogen absorbed by plants, responds to such thermal alterations...

  • Article
  • Open Access
11 Citations
4,356 Views
18 Pages

Effects of Different Organic Fertilizer Substitutions for Chemical Nitrogen Fertilizer on Soil Fertility and Nitrogen Use Efficiency of Foxtail Millet

  • Jiang Wang,
  • Genlan Han,
  • Yanyan Duan,
  • Ruihua Han,
  • Xiao Shen,
  • Chenyang Wang,
  • Lijie Zhao,
  • Mengen Nie,
  • Huiling Du and
  • Shuqi Dong
  • + 1 author

20 April 2024

Conventional fertilizer management can destroy the structure of soil. Replacing chemical fertilizers with organic fertilizers can improve soil quality and nitrogen use efficiency. We aimed to study the effects of organic fertilizer substitutions for...

  • Article
  • Open Access
653 Views
13 Pages

Rapid urbanisation and intensified poultry production have increased chicken feather waste (CFW), posing environmental concerns due to its recalcitrant keratin content. This study aimed to evaluate the potential of Actinomycetes, specifically Strepto...

  • Article
  • Open Access
37 Citations
4,488 Views
16 Pages

26 July 2021

With increasing age, plants will cause changes in soil physicochemical properties. The objective of this study was to investigate differences in the soil physicochemical properties in different-aged Masson pine forest plantations (i.e., 10, 20, 40, a...

  • Article
  • Open Access
2,441 Views
19 Pages

27 May 2023

This study explored the viability of greenhouse cultivation of Dendrocalamopsis oldhami under the “South Bamboo North Transplanting” initiative. In this study, the effects of planting year and nitrogen application on changes in soil nutri...

  • Article
  • Open Access
41 Citations
4,425 Views
10 Pages

Selected Properties of Soils for Long-Term Use in Organic Farming

  • Marcin Niemiec,
  • Maciej Chowaniak,
  • Jakub Sikora,
  • Anna Szeląg-Sikora,
  • Zofia Gródek-Szostak and
  • Monika Komorowska

23 March 2020

The goal of organic farming with respect to plant production is to create high-quality products while minimizing human impacts. The aim of this paper was to assess soil properties in selected organic farms in terms of the achievement of general and s...

  • Article
  • Open Access
1,194 Views
12 Pages

25 December 2024

Insect foliar herbivory is ubiquitous in terrestrial ecosystems, yet its impacts on soil nitrogen cycling processes remain not yet well known. To examine the impacts of insect foliar herbivory on soil N2O emission flux and available nitrogen (N), we...

  • Article
  • Open Access
1 Citations
2,141 Views
12 Pages

10 July 2024

Walnut trees on the Tibetan Plateau have sustainable and nutritious characteristics. They grow naturally without the use of any chemical fertilizers and pesticides. Therefore, the soil fertility of walnut orchards is a key factor influencing walnut y...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,143 Views
20 Pages

Impact of Nitrogen Limitation, Irrigation Levels, and Nitrogen-Rich Biostimulant Application on Agronomical and Chemical Traits of Hydroponically Grown Cichorium spinosum L.

  • Orfeas Voutsinos-Frantzis,
  • Ioannis Karavidas,
  • Dimitrios Savvas,
  • Theodora Ntanasi,
  • Vasileios Kaimpalis,
  • Beppe Benedetto Consentino,
  • Konstantinos A. Aliferis,
  • Anestis Karkanis,
  • Leo Sabatino and
  • Georgia Ntatsi

This study investigates the effects of nitrogen fertilization, irrigation, and biostimulant application on the growth and nutrient composition of Cichorium spinosum L. The experimental design included two nitrogen rates (NR100 and NR30, 100% and 30%...

  • Article
  • Open Access
8 Citations
3,332 Views
16 Pages

Spatial-Temporal Variation of N, P, and K Stoichiometry in Cropland of Hainan Island

  • Chunhua Ji,
  • Hailin Liu,
  • Zhengzao Cha,
  • Qinghuo Lin and
  • Gu Feng

Elemental stoichiometry reflects the interaction between plants, soil, and microorganisms, and links biogeochemical patterns with physiological limitations. The stoichiometry of elements in farmland soil is an important part of the function of the ag...

  • Article
  • Open Access
6 Citations
2,134 Views
17 Pages

Cold Nitrogen Plasma: A Groundbreaking Eco-Friendly Technique for the Surface Modification of Activated Carbon Aimed at Elevating Its Carbon Dioxide Adsorption Capacity

  • Joanna Siemak,
  • Bogdan Ulejczyk,
  • Grzegorz Mikołajczak,
  • Jakub Pęksiński,
  • Joanna Sreńscek-Nazzal,
  • Michał Młotek,
  • Krzysztof Krawczyk and
  • Beata Michalkiewicz

24 July 2024

The commercially available activated carbon was modified using barrier and spark discharge low-temperature nitrogen plasma treatment. The samples were investigated using nitrogen sorption at a temperature of −196 °C, XRD, SEM, and FTIR meth...

  • Article
  • Open Access
137 Views
18 Pages

To investigate the effects of different Trichosanthes kirilowii Maxim. varieties on leaf nutrients, soil nutrients, and microbial community composition, this study selected Yuelou No. 3 and Huiji No. 2, two major cultivars from the primary production...

  • Article
  • Open Access
5 Citations
1,924 Views
16 Pages

Hormonal Status of Transgenic Birch with a Pine Glutamine Synthetase Gene during Rooting In Vitro and Budburst Outdoors

  • Vadim G. Lebedev,
  • Alla V. Korobova,
  • Galina V. Shendel and
  • Konstantin A. Shestibratov

2 December 2023

Improving nitrogen use efficiency (NUE) is one of the main ways of increasing plant productivity through genetic engineering. The modification of nitrogen (N) metabolism can affect the hormonal content, but in transgenic plants, this aspect has not b...

  • Article
  • Open Access
577 Views
19 Pages

Effects of Substituting Organic Fertilizers for Chemical Nitrogen Fertilizers on Physical and Chemical Properties and Maize Yield of Anthropogenic-Alluvial Soil

  • Shengbo Wang,
  • Lei Li,
  • Shuting Tang,
  • Haili Si,
  • Haojun Xie,
  • Zhiming Zhu,
  • Lidong Ji,
  • Rui Wang,
  • Zongyuan Gao and
  • Bo Tian

10 November 2025

To resolve issues in the traditional agricultural production of the Ningxia irrigated area, where the sole pursuit of yield through extensive application of chemical nitrogen fertilizers has resulted in a deteriorated soil structure, reduced quality...

  • Article
  • Open Access
5 Citations
1,720 Views
14 Pages

Evaluation of Nitrogen Fertilizer Supply and Soil Nitrate Thresholds for High Yields of Foxtail Millet

  • Yiwei Lu,
  • Yu Zhao,
  • Xueyan Xia,
  • Meng Liu,
  • Zhimin Wei,
  • Jingxin Wang,
  • Jianjun Liu,
  • Jihan Cui and
  • Shunguo Li

29 September 2024

Foxtail millet is an important cereal crop in the North China Plain. However, excessive nitrogen fertilizer application over the years has led to declining yield and soil quality. This study investigated nutrient management strategies for foxtail mil...

  • Article
  • Open Access
2 Citations
1,701 Views
14 Pages

Organic Amendments Improve the Quality of Coal Gob Spoils: A Sustainable Mining Waste Reclamation Method

  • Zhiming Zhang,
  • Anshuman Satpathy,
  • Kirby Morris,
  • Abhishek RoyChowdhury,
  • Rupali Datta and
  • Dibyendu Sarkar

24 October 2024

Coal mine tailings can lead to a range of environmental problems, including toxic metal contamination, soil erosion, acid mine drainage, and increased salinity. Mine spoils from coal mining activities accumulated as gob piles are difficult to reclaim...

  • Article
  • Open Access
1,405 Views
23 Pages

Effects of Moso Bamboo (Phyllostachys edulis) Forest Stand Density on Root Growth and Soil Quality for Shoot Production Under a Long-Term Bamboo-Stocking Retention Model

  • Tianyou He,
  • Xing Cai,
  • Jialin Zhang,
  • Zongming Cai,
  • Qingzhuan Chen,
  • Shikun Li,
  • Jing Ye,
  • Lingyan Chen,
  • Jundong Rong and
  • Yushan Zheng
  • + 1 author

2 September 2025

Bamboo forest density is a factor that critically impacts the growth of moso bamboo, soil quality, and productivity. In this study, four bamboo forest density treatment groups were established under a long-term bamboo-stocking retention model, namely...

  • Article
  • Open Access
13 Citations
4,493 Views
13 Pages

The Influence of Mineral NPK Fertiliser Rates on Potassium Dynamics in Soil: Data from a Long-Term Agricultural Plant Fertilisation Experiment

  • Jonas Arbačauskas,
  • Zigmas Jonas Vaišvila,
  • Gediminas Staugaitis,
  • Lina Žičkienė,
  • Aistė Masevičienė and
  • Donatas Šumskis

27 October 2023

A fertilisation experiment, with the aim to determine the effects of different potassium fertiliser rates and their interactions with nitrogen and phosphorus on field-rotation productivity, potassium balance, fertiliser utilization, and changes in th...

  • Article
  • Open Access
21 Citations
3,881 Views
14 Pages

12 October 2019

Differences in crop yield between different fields in the same region have existed for a long time. Methods for improving the productivity of low-yield fields are a hot topic in large-scale agriculture. This experiment was carried out in potato plant...

  • Article
  • Open Access
3 Citations
2,156 Views
10 Pages

25 August 2022

To explore the impact of nitrogen (N) rate during the wheat season and N fertilizer management during the rice season on carbon and soil nutrient pools in paddy soil, a wheat–rice rotation system for 2 successive years was implemented. In the r...

  • Article
  • Open Access
8 Citations
2,443 Views
13 Pages

Investigation into the Effects of Different Restoration Techniques on the Soil Nutrient Status in Degraded Stipa grandis Grassland

  • Peiqing Zhang,
  • Tianqi Yu,
  • Dan Shan,
  • Ruirui Yan,
  • Lianyun Zhang,
  • Junjie Wang and
  • Qiqige Wuren

25 December 2023

The degradation and desertification of grassland ecosystems have garnered significant attention both domestically and internationally. Grassland restoration techniques are widely considered a principal measure to promote the sustainable utilization o...

  • Article
  • Open Access
10 Citations
3,103 Views
15 Pages

Effects of Valine and Urea on Carbon and Nitrogen Accumulation and Lignin Content in Peach Trees

  • Maoxiang Sun,
  • Suhong Li,
  • Haixiang Yu,
  • Qingtao Gong,
  • Binbin Zhang,
  • Guangyuan Liu,
  • Yuansong Xiao and
  • Futian Peng

10 April 2023

Nitrogen availability and uptake levels can affect nutrient accumulation in plants. In this study, the effects of valine and urea supplementation on the growth of new shoots, lignin content, and carbon and the nitrogen metabolism of ‘Ruiguang 3...

  • Article
  • Open Access
1 Citations
2,131 Views
14 Pages

Thickness of a Compost Layer on the Distribution of Water and Nutrients in a Surface-Drip-Irrigated Sandy Soil Column

  • Jiahao Zhang,
  • Zhaoxuan Li,
  • Yanxin Luo,
  • Xinyi Wang,
  • Dongyan Yang and
  • Xueyan Zhang

22 April 2023

The management of crop production in a sandy soil “culture” is difficult, mainly due to its low soil-water-holding capacity, organic matter and poor fertilizer efficiency. Options to increase soil water and nutrient retention for these so...

  • Article
  • Open Access
9 Citations
2,351 Views
11 Pages

The Relationship of Soil Organic Carbon and Nutrient Contents to Maize Yield as Affected by Maize Straw Return Modes

  • Chuanyu Wang,
  • Yao Liang,
  • Jianzhao Liu,
  • Jingchao Yuan,
  • Jun Ren,
  • Yidan Geng,
  • Zeqiang Shao,
  • Jinjing Zhang and
  • Hongguang Cai

17 November 2023

Returning crop residues to the field after harvesting is a proven effective strategy for improving soil fertility, carbon sequestration, and crop productivity. However, the relationships between crop residue return modes, SOC and nutrient contents, a...

  • Article
  • Open Access
14 Citations
3,609 Views
13 Pages

29 August 2023

The long-term and excessive use of mineral fertilizers in a semi-arid region with severe water shortage will lead to soil compaction and poor water-holding capacity. The fertilization method of manure instead of mineral fertilizer has attracted wide...

  • Article
  • Open Access
3 Citations
3,069 Views
16 Pages

Knowledge of the characteristics of N2O emissions and the influential mechanism is of great significance to mitigate greenhouse gas emissions in semi-arid areas. In the present study, a three-year water-control study was conducted; three simulated ra...

  • Article
  • Open Access
2 Citations
2,043 Views
19 Pages

Straw and Green Manure Return Can Improve Soil Fertility and Rice Yield in Long-Term Cultivation Paddy Fields with High Initial Organic Matter Content

  • Hailin Zhang,
  • Long Chen,
  • Yongsheng Wang,
  • Mengyi Xu,
  • Weiwen Qiu,
  • Wei Liu,
  • Tingyu Wang,
  • Shenglong Li,
  • Yuanhang Fei and
  • Jun Yi
  • + 4 authors

27 June 2025

Returning straw and green manure to the field is a vital agronomic practice for improving crop yields and ensuring food security. However, the existing research primarily focuses on drylands and low-fertility paddy fields. A systematic discussion of...

  • Article
  • Open Access
6 Citations
1,984 Views
14 Pages

19 March 2023

In order to explore the response of soil nutrient supply capacity and tea plant nutrient utilization capacity to tea-planting years in precious ancient tea garden, field investigation and indoor analysis methods were employed to research the soil and...

  • Article
  • Open Access
24 Citations
3,353 Views
17 Pages

Effects of Root Zone Aeration on Soil Microbes Species in a Peach Tree Rhizosphere and Root Growth

  • Maoxiang Sun,
  • Xiaolong Liu,
  • Kaiwu Shi,
  • Futian Peng and
  • Yuansong Xiao

The oxygen content in the root zone considerably affects the growth and development of peach trees. However, few studies have been conducted on the effects of the oxygen content in the root zones of peach trees on soil microbes and root growth. Four-...

  • Article
  • Open Access
618 Views
13 Pages

Changes in the Soil Fungal Community in a Temperate Deciduous Forest at Different Altitudes in the Taihang Mountains

  • Liu Yang,
  • Jinhua Sun,
  • Ting Wang,
  • Shu Zhao,
  • Qingxin Li,
  • Xitian Yang,
  • Lianfeng Shen,
  • Guohang Tian and
  • Feiyan Ren

10 November 2025

Soil fungi play vital roles in the forest soil ecosystems through the nutrient cycle and organic substance decomposition, so the distribution of fungi at different altitudes has attracted increasing attention. However, their abundance, diversity, and...

  • Article
  • Open Access
11 Citations
4,071 Views
16 Pages

19 June 2023

Intercropping orchards with cover crops is an important practice for achieving sustainable soil management. However, little research has addressed the development of a soil quality index (SQI) to evaluate cover crop effects on orchard soil quality. T...

  • Article
  • Open Access
5 Citations
2,459 Views
12 Pages

Preliminary Results of Effect of Rotational Grazing of Farmed Red Deer (Cervus elaphus) on the Biochemical Status of Soil

  • Barbara Futa,
  • Katarzyna Tajchman,
  • Żaneta Steiner-Bogdaszewska,
  • Leszek Drozd and
  • Tomasz M. Gruszecki

15 March 2021

The aim of the study was to identify the trends and dynamics of changes in the chemical and biochemical properties of soil induced by rotational grazing of farmed deer. Soils pH and the content of mineral nitrogen forms, total nitrogen, and organic c...

  • Article
  • Open Access
25 Citations
6,307 Views
13 Pages

Native and Alien Plant Species Richness Response to Soil Nitrogen and Phosphorus in Temperate Floodplain and Swamp Forests

  • Richard Hrivnák,
  • Michal Slezák,
  • Benjamín Jarčuška,
  • Ivan Jarolímek and
  • Judita Kochjarová

7 October 2015

Soil nitrogen and phosphorus are commonly limiting elements affecting plant species richness in temperate zones. Our species richness-ecological study was performed in alder-dominated forests representing temperate floodplains (streamside alder fores...

  • Article
  • Open Access
10 Citations
2,593 Views
12 Pages

Controlled-Release Nitrogen Mixed with Common Nitrogen Fertilizer Can Maintain High Yield of Rapeseed and Improve Nitrogen Utilization Efficiency

  • Yue Hu,
  • Fangfang Zhang,
  • Hafiz Hassan Javed,
  • Xiao Peng,
  • Honglin Chen,
  • Weiqun Tang,
  • Ying Lai and
  • Yongcheng Wu

8 December 2023

Field experiments were conducted to study the effects of different proportions of controlled-release nitrogen fertilizer mixed with quick-acting nitrogen fertilizer on the yield and nitrogen utilization efficiency of direct-seeding rapeseed. Using a...

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