Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)

Purpose: Due to environmental concerns, efforts are made to replace the use of peat in horticultural growth media by organic wastes. Four growth media were prepared with the purpose of achieving adequate physical and chemical properties for plant production. Materials and methods: Growth media prepa...

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Main Authors: Astrid Solvåg Nesse, Trine Sogn, Trond Børresen, Bente Foereid
Format: Article
Language:English
Published: Taylor & Francis Group 2019-05-01
Series:Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
Subjects:
Online Access:http://dx.doi.org/10.1080/09064710.2018.1556728
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author Astrid Solvåg Nesse
Trine Sogn
Trond Børresen
Bente Foereid
author_facet Astrid Solvåg Nesse
Trine Sogn
Trond Børresen
Bente Foereid
author_sort Astrid Solvåg Nesse
collection DOAJ
description Purpose: Due to environmental concerns, efforts are made to replace the use of peat in horticultural growth media by organic wastes. Four growth media were prepared with the purpose of achieving adequate physical and chemical properties for plant production. Materials and methods: Growth media prepared from mixtures of coir (C) and paper sludge (P), respectively, with two biogas digestates from food waste (D1 and D2), were tested. These mixtures, 20% D1 or D2 + 80% C or P (v/v), were evaluated as growth media for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.). Results and conclusion: The growth media were all physically stable during the growing period, provided all the macronutrients and most of the micronutrients necessary for plant growth, adequate pH conditions, as well as an adequate electrical conductivity. The mixture of D2 and P produced the highest biomass compared to a mineral fertilised peat (control), with a biomass production of 76% of the control for lettuce and 54% for tomato. Causes for the biomass reduction relative to the control may be related to ammonium toxicity effects, and/or limited plant-available water. The digestates, particularly D1, seemed also to have a phytotoxic effect on the germination.
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spelling doaj.art-81a3bd40f3d4481d9d480d88899a8a9e2023-09-15T10:26:24ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132019-05-0169428729410.1080/09064710.2018.15567281556728Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)Astrid Solvåg Nesse0Trine Sogn1Trond Børresen2Bente Foereid3Norwegian University of Life SciencesNorwegian University of Life SciencesNorwegian University of Life SciencesNIBIO, Norwegian Institute of Bioeconomy ResearchPurpose: Due to environmental concerns, efforts are made to replace the use of peat in horticultural growth media by organic wastes. Four growth media were prepared with the purpose of achieving adequate physical and chemical properties for plant production. Materials and methods: Growth media prepared from mixtures of coir (C) and paper sludge (P), respectively, with two biogas digestates from food waste (D1 and D2), were tested. These mixtures, 20% D1 or D2 + 80% C or P (v/v), were evaluated as growth media for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.). Results and conclusion: The growth media were all physically stable during the growing period, provided all the macronutrients and most of the micronutrients necessary for plant growth, adequate pH conditions, as well as an adequate electrical conductivity. The mixture of D2 and P produced the highest biomass compared to a mineral fertilised peat (control), with a biomass production of 76% of the control for lettuce and 54% for tomato. Causes for the biomass reduction relative to the control may be related to ammonium toxicity effects, and/or limited plant-available water. The digestates, particularly D1, seemed also to have a phytotoxic effect on the germination.http://dx.doi.org/10.1080/09064710.2018.1556728organic fertiliserorganic residuesphytotoxicitywaste managementyield
spellingShingle Astrid Solvåg Nesse
Trine Sogn
Trond Børresen
Bente Foereid
Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science
organic fertiliser
organic residues
phytotoxicity
waste management
yield
title Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
title_full Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
title_fullStr Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
title_full_unstemmed Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
title_short Peat replacement in horticultural growth media: the adequacy of coir, paper sludge and biogas digestate as growth medium constituents for tomato (Solanum lycopersicum L.) and lettuce (Lactuca sativa L.)
title_sort peat replacement in horticultural growth media the adequacy of coir paper sludge and biogas digestate as growth medium constituents for tomato solanum lycopersicum l and lettuce lactuca sativa l
topic organic fertiliser
organic residues
phytotoxicity
waste management
yield
url http://dx.doi.org/10.1080/09064710.2018.1556728
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