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Prospective Application of Cement-Free Porous Concrete Substrate for Plant Growth: A Field Experiment on Perennial Herbs and Grasses
Authors: Manish Ojha,
Mark Lefsrud
Identifier: CSBE23124
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Published in: CSBE-SCGAB Technical Conferences » AGM Lethbridge 2023
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Description: Porous concrete featuring a high void content has become increasingly prevalent in urban settings owing to its ability to facilitate the infiltration of water through its porous structure. As such, its applications have been explored in domains of sustainable infrastructure and urban agriculture, one of them being an alternate substrate for plant growth. The experiment thereof explores the prospective application of one such product, a cement-free porous concrete substrate with an aggregate size of 2.0-3.2 mm, void content of 30%, and a water-to-binder ratio of 0.2. 16 varieties of plants, mostly comprising perennial herbs, were seeded onto the porous concrete substrate (x27) for a 4-month field experiment at McGill Macdonald Farm. Similar treatments were applied to gravel (x27), sand (x27), and soil (x27) for comparison. Germination of at least one plant was seen in all porous concrete substrates. The survival rate on the porous concrete substrate was high (>70%) for lemon balm (Melissa officinalis), dill (Anethum graveolens), chives (Allium schoenoprasum), clover (Trifolium spp.), and turf grass. Dill performed better on porous concrete substrate than other substrates, with 11.5 X of the dry biomass of dill obtained from soil. Dry biomass values for lemon balm resulted similar scores for porous concrete, gravel and sand (p<0.05) compared to soil (p<0.05), scores for which were greater. Values of dry biomass for alyssum (Lobularia maritima) and sweet william (Dianthus barbatus) had significantly similar scores for all the substrates (p<0.05).
Keywords: Porous Concrete, Plant Growth, Substrate, Field Experiment
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Date: 2023-07-23
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Conference name: CSBE/SCGAB 2023 Annual Conference, Lethbridge, Alberta, 23-26 July 2023.
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Type: Presentation
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Publication type: Text.Abstract
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Relation:
Coverage: North_America
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
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DOI:
Description: Porous concrete featuring a high void content has become increasingly prevalent in urban settings owing to its ability to facilitate the infiltration of water through its porous structure. As such, its applications have been explored in domains of sustainable infrastructure and urban agriculture, one of them being an alternate substrate for plant growth. The experiment thereof explores the prospective application of one such product, a cement-free porous concrete substrate with an aggregate size of 2.0-3.2 mm, void content of 30%, and a water-to-binder ratio of 0.2. 16 varieties of plants, mostly comprising perennial herbs, were seeded onto the porous concrete substrate (x27) for a 4-month field experiment at McGill Macdonald Farm. Similar treatments were applied to gravel (x27), sand (x27), and soil (x27) for comparison. Germination of at least one plant was seen in all porous concrete substrates. The survival rate on the porous concrete substrate was high (>70%) for lemon balm (Melissa officinalis), dill (Anethum graveolens), chives (Allium schoenoprasum), clover (Trifolium spp.), and turf grass. Dill performed better on porous concrete substrate than other substrates, with 11.5 X of the dry biomass of dill obtained from soil. Dry biomass values for lemon balm resulted similar scores for porous concrete, gravel and sand (p<0.05) compared to soil (p<0.05), scores for which were greater. Values of dry biomass for alyssum (Lobularia maritima) and sweet william (Dianthus barbatus) had significantly similar scores for all the substrates (p<0.05).
Keywords: Porous Concrete, Plant Growth, Substrate, Field Experiment
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2023-07-23
Technical field:
Conference name: CSBE/SCGAB 2023 Annual Conference, Lethbridge, Alberta, 23-26 July 2023.
Session name:
Other information:
Type: Presentation
Format:
Publication type: Text.Abstract
Source:
Relation:
Coverage: North_America
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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