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Enhancing Soil Fertility Through Sustainable Agricultural Practices and Organic Amendments

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Agriculture".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1608

Special Issue Editor


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Guest Editor
Hellenic Agricultural Organization-DIMITRA, Institute of Soil and Water Resources, Department of Soil Science of Athens, 1 S. Venizelou Str., 141 23 Lykovrisi, Greece
Interests: soil fertility and conservation; agricultural waste and crops residue management; soil contamination and remediation strategies
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Special Issue Information

Dear Colleagues,

Soil fertility is a key parameter of sustainable agriculture that has direct implications for food security, environmental health, and economic sustainability. The sustainable management of soil fertility requires soil health preservation due to its ability to sustain biological productivity and its potential to conserve a positive environmental state. This approach comprises a range of agricultural practices, such as conservation agriculture, crop rotation, intercropping, and organic amendment. As agriculture is increasingly threatened by climate change and soil degradation, adopting sustainable practices has become unavoidable. Organic amendment applications not only enhance soil fertility by introducing organic matter and improving soil structure but also provide essential nutrients, reduce the greenhouse gas emissions caused by conventional farming practices, enhance soil biodiversity, improve soil moisture retention, reduce soil erosion, etc.

This Special Issue integrates state-of-the-art science and on-farm practices, exploring holistic approaches for enhancing soil fertility and health and crop yield. It highlights the use of organic methods (e.g., compost, biofertilizers, crop residues), while addressing key challenges such as soil degradation, nutrient loss, and the long-term costs of intensive agriculture. Special emphasis is also given to agroecological practices to mitigate the impacts of climate change as well as to circular economic practices and bio-based soil amendments. Furthermore, this Issue addresses socio-economic and policy dimensions, providing a comprehensive perspective of sustainable soil management.

Dr. Victor Kavvadias
Guest Editor

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Keywords

  • soil fertility
  • sustainable agriculture
  • organic amendments
  • soil degradation
  • climate change
  • agroecological practices

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Published Papers (2 papers)

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Research

26 pages, 2713 KB  
Article
The Impact of Using Compost, Vermicompost and Mineral Fertilization on Soil Nematode Communities and Maize Grain Quality in a Pot Experiment
by Anita Zapałowska, Wacław Jarecki, Andrzej Tomasz Skwiercz and Małgorzata Kunka
Sustainability 2025, 17(22), 9936; https://doi.org/10.3390/su17229936 - 7 Nov 2025
Viewed by 480
Abstract
A pot experiment was carried out to evaluate the effects of composts, vermicomposts, and mineral fertilization on maize (Zea mays L.) growth, grain quality, soil chemical properties, and nematode communities. Eight treatments were tested, including organic amendments combined with mineral nitrogen, exclusive [...] Read more.
A pot experiment was carried out to evaluate the effects of composts, vermicomposts, and mineral fertilization on maize (Zea mays L.) growth, grain quality, soil chemical properties, and nematode communities. Eight treatments were tested, including organic amendments combined with mineral nitrogen, exclusive mineral fertilization, and an unfertilized control. Soil chemical properties, including pH, salinity, nitrogen compounds, and macro- and microelements, varied notably across treatments. Nematode community analysis revealed distinct patterns among treatments: Shannon diversity was moderate and relatively stable across most treatments, but a statistically significant reduction was recorded in treatment 7. In contrast, the Plant Parasitic Index (PPI) varied significantly, reflecting differences in community maturity and parasitic pressure. Bacterivores and fungivores indicated active nutrient cycling, while omnivores and predators reflected soil food web stability. Fertilization treatments significantly affected maize grain development. The highest thousand-kernel weight (TKW) was recorded in treatment 6 (+8.9% vs. control) and treatment 4 (+7.4% vs. control). The kernel number per cob was greatest in treatments 4 and 5 (+38% and +32%), with corresponding increases in grain mass per cob (+48% and +40%). The mean cob core weight ranged from 20.1 g in the control treatment to 30.2 g in treatment 1. The greatest increases compared to the control were observed in treatments 1 and 5, amounting to 50.2% and 44.8%, respectively. Overall, fertilization influenced grain quality, soil chemistry, and nematode communities, highlighting the importance of integrating organic and mineral amendments for sustainable crop production. Full article
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18 pages, 318 KB  
Article
Peanut Growth and Yield Responses Are Influenced by Plant Density, Microbial Consortium Inoculation, and Amino Acid Application
by Alexander Calero Hurtado, Yanery Pérez Díaz, Kolima Peña Calzada and Jorge Félix Meléndrez Rodríguez
Sustainability 2025, 17(20), 9207; https://doi.org/10.3390/su17209207 - 17 Oct 2025
Viewed by 727
Abstract
Integrating optimal plant density, microbial bioinoculants, and foliar amino acid application represents a key strategy to enhance sustainable peanut production. Therefore, the objective of this research was to investigate the combined impact of plant density (P), microbial consortium (M) bioinoculants, and foliar amino [...] Read more.
Integrating optimal plant density, microbial bioinoculants, and foliar amino acid application represents a key strategy to enhance sustainable peanut production. Therefore, the objective of this research was to investigate the combined impact of plant density (P), microbial consortium (M) bioinoculants, and foliar amino acid application (A) on the morpho-physiological and agroproductive responses of peanut production. Under field conditions, the experiment was arranged in a split–split plot with four replicates. Two plant densities of 41,667 and 83,334 plants/ha were the main plots, soil inoculation with M at 0 mL m−2, 100 mL m−2, and 200 mL m−2 were the subplots, and the foliar application of VIUSID® agro at 0 mL L−1, 0.60 mL L−1, and 1.20 mL L−1 were the sub-subplots. Results indicated that peanut plant cultivated at a density of 83,334 plants/ha, inoculated with 100 mL m−2 of microbial consortium, and supplemented 0.60 mL L−1 of amino acid significantly enhanced the growth and physiological responses and increased peanut yield in a sustainable manner. Therefore, the findings of this study suggest that this integrated approach improved resource utilization, promoted balanced vegetative and reproductive development, and strengthened stress resilience, ultimately leading to higher productivity under sustainable management practices. Full article
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