Advancements in Biofertilizers and Plant Growth-Promoting Rhizobacteria for the Sustainable Cultivation of Horticulture Products

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Horticultural and Floricultural Crops".

Deadline for manuscript submissions: 30 August 2025 | Viewed by 782

Special Issue Editors


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Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Huajuapan de León, Oaxaca 69004, Mexico
Interests: agrobiotechnology; biocontrol; biofertilizers; biological control; horticultural products; inoculant production; physicochemical quality of agro-products; sustainable agriculture
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Guest Editor
USDA-ARS, National Center for Agricultural Utilization Research, Peoria, IL 61604, USA
Interests: beneficial microbes in agriculture and improving the efficacy of biological control organisms; control of insects; weeds and fungal pathogens; crop protection

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Guest Editor

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Guest Editor
Department of Food Technology, University ‘Ion Ionescu de la Brad’ of Life Sciences of Iasi, 700490 Iasi, Romania
Interests: horticultural product science; sustainable chains; food technology; innovative products; horticultural crop production; fruits and vegetables quality
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

A current critical global dilemma in modern agriculture is being posed by the need to increase crop production to feed the continuously growing world population while considering the sustainable use of natural resources. In this context, the use of rhizospheric and endophytic microorganisms has been proven to be effective not only for increasing crop productivity but also for reducing the use of agrochemicals. This Special Issue (SI) focuses on current state-of-the-art advancements regarding the use of microbial inoculants and soil amendments for sustainable horticultural production and these products’ phytochemical quality assessment. In addition, it is highly recommended that the submitted manuscripts study the mechanisms involved in beneficial microorganisms’ biofertilization effects on crop growth and harvested products’ quality, preferably through in vivo and in-field experiments. Studies involving in vitro studies with fundamental or mechanistic considerations. In addition, considering that these types of studies are complex and multifactorial, involving different aspects related to food crops, plant microbiota, and intrinsic agronomical systems, it would be an asset for the proposed works to yield innovative results using omics analyses, such as genomics, metabolomics, and transcriptomics. These studies should aim to relate biochemical and genomic mechanisms to their effects on the agricultural system. Our ultimate goal is for the submitted works to be at the frontier of scientific knowledge in this multidisciplinary and interdisciplinary field to support practical agricultural applications of beneficial microorganisms.

Dr. Rogelio Valadez Blanco
Dr. Christopher A Dunlap
Dr. Gianluca Caruso
Dr. Otilia Cristina Murariu
Guest Editors

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Keywords

  • agrobiotechnology
  • agro-products’ phytochemical quality
  • biofertilization
  • crop-beneficial microbes
  • plant growth-promoting rhizobacteria
  • sustainable agriculture

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Published Papers (1 paper)

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Research

20 pages, 3718 KiB  
Article
Influence of Compost and Biological Fertilization with Reducing the Rates of Mineral Fertilizers on Vegetative Growth, Nutritional Status, Yield and Fruit Quality of ‘Anna’ Apples
by Sameh Kamel Okba, Hesham M. Abo Ogiela, Ahlam Mehesen, Gehad B. Mikhael, Shamel M. Alam-Eldein and Ashraf M. S. Tubeileh
Agronomy 2025, 15(3), 662; https://doi.org/10.3390/agronomy15030662 - 6 Mar 2025
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Abstract
A field trial was conducted on eight-year-old ‘Anna’ apple (Malus domestica) trees from 2021 to 2023 in northern Egypt. The objective of this study was to determine the effects of replacing mineral fertilizer with compost and microorganism applications. Treatments were prepared [...] Read more.
A field trial was conducted on eight-year-old ‘Anna’ apple (Malus domestica) trees from 2021 to 2023 in northern Egypt. The objective of this study was to determine the effects of replacing mineral fertilizer with compost and microorganism applications. Treatments were prepared using combinations of three mineral fertilizer NPK (nitrogen (N), phosphorus (P) and potassium (K)) levels (75% recommended NPK rate, 50% and 25% recommended rate), with two compost levels (with/without) and two bacteria/fungi biological blend (PGPM) levels (with/without). This design resulted in 12 treatments in addition to a control treatment consisting of the full NPK recommended rate (100% NPK). Leaf nutrient concentrations, vegetative growth, fruit set percentage, fruit drop percentage, yield and fruit quality were measured in 2022 and 2023. Our results indicated that vegetative growth parameters were significantly influenced by the fertilizer treatments in both seasons. The application of 75% NPK + compost + PGPM or 50% NPK + compost + PGPM significantly increased shoot length, shoot diameter, leaf area and leaf-specific weight compared with the control (100% NPK). The greatest values of leaf nutrients and production and quality parameters were obtained with treatments 75% NPK + compost + PGPM or 50% NPK + compost + PGPM. Applying 75% NPK + compost + PGPM or 50%NPK + compost + PGPM increased total soluble solids and anthocyanin concentrations but reduced fruit nitrate and nitrite levels compared with the control (100% NPK). This study shows that it is possible to reduce mineral fertilizer application by 25–50% while improving the yield if compost and microbial inoculants are applied. Full article
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