Organic and Organomineral Fertilizers for Sustainable and Circular Agriculture

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 976

Special Issue Editors


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Guest Editor
Departamento de Educação, Universidade do Estado da Bahia, Campus XIV, Conceição do Coité 41150-000, Bahia, Brazil
Interests: soil; soil analysis; fertilizers; soil fertility; plant nutrition; soil and water conservation; crop production; climate change and agriculture conservation; agriculture; crop management

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Guest Editor
Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Uberlandia, Brazil
Interests: vegetables; medicinal plants; ornamental plants; landscaping; fruit growing; plant physiology; plant nutrition; special fertilizers; biostimulants; biofertilizers; plant regulators

Special Issue Information

Dear Colleagues,

Farmers have used animal and vegetable organic residues for several years as a primary source of nutrients to fertilize agricultural soils. However, with the development of mineral fertilizers, the use of organic residues was reduced.

In recent years, the use of organic and organomineral fertilizers has increased due to high organic residue production in response to the growing pressures of conforming to environmental quality standards. In addition, mineral fertilizers present high costs and demand associated with low use efficiency, thereby impacting production costs and the environment.

Organic and organomineral fertilizers have been defined as products resulting from the physical mixture or combination of mineral and organic (organomineral fertilizers) or just organic (organic fertilizers) components, with high contents of organic carbon, cation-exchange capacity, and nutrients. The organic matrices can come from different sources (i.e., animal manure, coffee straws, and filter cakes), be combined, and then used to increase nutrient use efficiency and fertilizer demand.

Therefore, organic and organomineral fertilizers have been presented as alternatives to increase nutrient use efficiency and fertilizer demand, with great potential for optimizing the use of by-products, as well as the promotion of sustainable and socially acceptable alternatives to achieve a circular economy.

This Special Issue will focus on “organic and organomineral fertilizers for a sustainable and circular agriculture”. Original research articles, review articles, communications, letters, and opinions providing innovative insights into the related topics are welcome.

Dr. Risely Ferraz Almeida
Dr. Roberta Camargos de Oliveira
Prof. Dr. Teodor Rusu
Guest Editors

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Keywords

  • soil management
  • nutrient availability
  • nutrient use efficiency
  • microbial communities
  • fertilization strategies
  • fertilizer production
  • composting
  • organic residues
  • sustainable agriculture
  • circular agriculture

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Published Papers (1 paper)

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Research

13 pages, 1137 KiB  
Article
Alternative Phosphorus Fertilisation with Bio-Based Pellet Fertilisers: A Case of Study on Ryegrass (Lollium perenne L.)
by Silvia Sánchez-Méndez, Lucía Valverde-Vozmediano, Luciano Orden, Francisco Javier Andreu-Rodríguez, José Antonio Sáez-Tovar, Encarnación Martínez-Sabater, María Ángeles Bustamante and Raúl Moral
Agronomy 2025, 15(3), 579; https://doi.org/10.3390/agronomy15030579 - 26 Feb 2025
Viewed by 363
Abstract
The European Union (EU) advocates for a sustainable agricultural model with reduced synthetic fertiliser use. This study compares different high-P organo-mineral pellet fertilisers (OMFs) and their effects on crop yield. A trial was conducted under controlled conditions in ryegrass (Lollium perenne L.) [...] Read more.
The European Union (EU) advocates for a sustainable agricultural model with reduced synthetic fertiliser use. This study compares different high-P organo-mineral pellet fertilisers (OMFs) and their effects on crop yield. A trial was conducted under controlled conditions in ryegrass (Lollium perenne L.) pots with different organo-mineral fertilisation strategies at sowing with adjusted doses of P (120 kg P ha−1) and N (200 kg N ha−1). Pellets were developed from compost enriched with bone meal (OMF-BON), struvite (OMF-STR), and monoammonium phosphate (OMF-MAP). Conventional fertilisers (Complex15 and MAP) and alternative unpelletised/pelletised sources (STR and BON) were also tested. The experimental design included an unfertilised control (C), and treatments were carried out in triplicate (N = 24). Over 40 days, three cuttings (10, 25, and 40 days) were collected to determine fresh/dry biomass, nutrient content, and N, P, and K extraction efficiency. Soil labile parameters were influenced by the application of fertilisers especially OMF-MAP, OMF-STR, and MAP. MAP and STR yielded the highest nutrient extraction and biomass production, followed by their pelletised forms (OMF-MAP and OMF-STR). These results highlight the potential of pelletised organo-mineral fertilisers as sustainable alternatives to conventional sources. Full article
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