Morpho-physiological plant quality when biochar and vermicompost are used as growing media replacement in urban horticulture |
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| Institution: | 1. Escuela Técnica Superior de Ingeniería, Universidad de Huelva, 21071, Huelva, Spain;2. Horticulture Dept., 249B Howlett Hall, Ohio State University, Columbus OH, 43210, USA;3. C-MASC, 422B Kottman Hall, Ohio State University, Columbus OH, 43210, USA;4. IRNAS-CSIC, Avenida Reina Mercedes, 10, 41012, Sevilla, Spain;1. College of Forestry, Beijing Forestry University, Beijing 100083, PR China;2. Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada T6G 2E3;1. USDA, Agricultural Research Service, Functional Foods Research, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA;2. USDA, Agricultural Research Service, Bio-oils Research, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA;3. Hydrostraw LLC, 3676 W. 9000 Road, Manteno, IL 60950, USA;4. Microbial Energy Systems, Inc., 3416 Ashwood Drive, Bloomington, IN 47401, USA;5. USDA, Agricultural Research Service, Biopolymer Research, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA;1. Centre de Recherche en Innovation sur les Végétaux, Université Laval, Quebec City, QC G1V 0A6, Canada;2. Quebec Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd, Quebec City, QC G1V 2J3, Canada;1. College of Forestry, Beijing Forestry University, Beijing 100083, PR China;2. Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, PR China;1. Compost/AD Research & Advisory (IE, CY), Naas, Ireland;2. Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus;3. Bord na Mona Research Centre, Main Street, Newbridge, Ireland |
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| Abstract: | Peat moss is the most used soilless substrate in the production of container plants in floriculture. Nevertheless, the drainage of peat bogs due to the peat extraction has increased the necessity of seeking products that could replace the peat that is used in plant production. Therefore, a comparative study was conducted to evaluate the effect of a biochar (B) - vermicompost (V) mixture, as a partial substitute for peat-based substrates, on the morpho-physiological characteristics of ornamental plants. Different blends containing B and V were compared to a baseline peat-based substrate (S) as control in the cultivation of two ornamental bedding plant species that are widely used in urban areas: geranium (Pelargonium peltatum) and petunia (Petunia hybrida). Plant growth and physiological parameters were assessed. Results showed that it is possible to grow container plants of these two species with commercial quality, using a peat-based substrate mixed with biochar and/or vermicompost (up to 30% V and 12% B). Plants in these substrates showed a similar or enhanced physiological response to those grown in the control using commercial peat-based substrate. |
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| Keywords: | Bedding plants Carbon storage Peat substitution |
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