Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach

This study follows a circular economy approach through the preliminary implementation of a coated porous inorganic material (PIM), studied as sustainable controlled release fertilizer, and its application for lettuce Lactuca sativa L. cultivar Chiara growth. The PIM was made of pumice scraps that pa...

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Main Authors: Claudia Righi, Francesco Barbieri, Elisabetta Sgarbi, Lara Maistrello, Alessandro Bertacchini, Fernanda Nora Andreola, Antonio D’Angelo, Michelina Catauro, Luisa Barbieri
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/11/5437
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author Claudia Righi
Francesco Barbieri
Elisabetta Sgarbi
Lara Maistrello
Alessandro Bertacchini
Fernanda Nora Andreola
Antonio D’Angelo
Michelina Catauro
Luisa Barbieri
author_facet Claudia Righi
Francesco Barbieri
Elisabetta Sgarbi
Lara Maistrello
Alessandro Bertacchini
Fernanda Nora Andreola
Antonio D’Angelo
Michelina Catauro
Luisa Barbieri
author_sort Claudia Righi
collection DOAJ
description This study follows a circular economy approach through the preliminary implementation of a coated porous inorganic material (PIM), studied as sustainable controlled release fertilizer, and its application for lettuce Lactuca sativa L. cultivar Chiara growth. The PIM was made of pumice scraps that partially replaced clay as a natural raw material, spent coffee grounds as a porous agent, bovine bone ash and potassium carbonate to provide phosphorus (P) and potassium (K) nutrients, respectively. A coating made with defatted black soldier fly prepupae biomass was used as a nitrogen (N) source. Most of the ingredients used were industrial residues, with the aim of valorizing the raw waste materials present locally. The suitability of PIMs as a fertilizer was investigated with an interdisciplinary approach, which included the first chemical and physical characterization of the material, the evaluation of its antibacterial properties and of its use in horticulture through lettuce growth tests. As tests were carried out indoors, a specific LED lighting device was used to grow the lettuce. The release of nutrients into the soil was estimated by measuring the main elements in the fertilizers before and after their use in the soil. The first results from this characterization study support PIMs’ suitability for agronomic applications. The use of the PIMs suggested average higher dry weight (49%), fresh weight (112%), and leaf area (48%), compared to those with the use of a standard fertilizer soil, without the release of any dangerous element for the plant in the soil. These results are a promising beginning for the development of further studies already in progress on sustainable controlled-release fertilizers.
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spelling doaj.art-3ab884f853b647f28c99ee00ddfbbb7a2023-11-23T13:41:38ZengMDPI AGApplied Sciences2076-34172022-05-011211543710.3390/app12115437Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary ApproachClaudia Righi0Francesco Barbieri1Elisabetta Sgarbi2Lara Maistrello3Alessandro Bertacchini4Fernanda Nora Andreola5Antonio D’Angelo6Michelina Catauro7Luisa Barbieri8Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10/1, 41125 Modena, ItalyDepartment of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2, 42122 Reggio Emilia, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2, 42122 Reggio Emilia, ItalyDepartment of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, ItalyDepartment of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10/1, 41125 Modena, ItalyDepartment of Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 29, 81031 Aversa, ItalyDepartment of Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 29, 81031 Aversa, ItalyDepartment of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10/1, 41125 Modena, ItalyThis study follows a circular economy approach through the preliminary implementation of a coated porous inorganic material (PIM), studied as sustainable controlled release fertilizer, and its application for lettuce Lactuca sativa L. cultivar Chiara growth. The PIM was made of pumice scraps that partially replaced clay as a natural raw material, spent coffee grounds as a porous agent, bovine bone ash and potassium carbonate to provide phosphorus (P) and potassium (K) nutrients, respectively. A coating made with defatted black soldier fly prepupae biomass was used as a nitrogen (N) source. Most of the ingredients used were industrial residues, with the aim of valorizing the raw waste materials present locally. The suitability of PIMs as a fertilizer was investigated with an interdisciplinary approach, which included the first chemical and physical characterization of the material, the evaluation of its antibacterial properties and of its use in horticulture through lettuce growth tests. As tests were carried out indoors, a specific LED lighting device was used to grow the lettuce. The release of nutrients into the soil was estimated by measuring the main elements in the fertilizers before and after their use in the soil. The first results from this characterization study support PIMs’ suitability for agronomic applications. The use of the PIMs suggested average higher dry weight (49%), fresh weight (112%), and leaf area (48%), compared to those with the use of a standard fertilizer soil, without the release of any dangerous element for the plant in the soil. These results are a promising beginning for the development of further studies already in progress on sustainable controlled-release fertilizers.https://www.mdpi.com/2076-3417/12/11/5437controlled-release fertilizerslettucenutrientsLEDindoor horticultureblack soldier fly prepupae
spellingShingle Claudia Righi
Francesco Barbieri
Elisabetta Sgarbi
Lara Maistrello
Alessandro Bertacchini
Fernanda Nora Andreola
Antonio D’Angelo
Michelina Catauro
Luisa Barbieri
Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
Applied Sciences
controlled-release fertilizers
lettuce
nutrients
LED
indoor horticulture
black soldier fly prepupae
title Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
title_full Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
title_fullStr Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
title_full_unstemmed Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
title_short Suitability of Porous Inorganic Materials from Industrial Residues and Bioproducts for Use in Horticulture: A Multidisciplinary Approach
title_sort suitability of porous inorganic materials from industrial residues and bioproducts for use in horticulture a multidisciplinary approach
topic controlled-release fertilizers
lettuce
nutrients
LED
indoor horticulture
black soldier fly prepupae
url https://www.mdpi.com/2076-3417/12/11/5437
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