Effects of Fertigation with Untreated and Treated Leachates from Municipal Solid Waste on the Microelement Status and Biometric Parameters of Viola × wittrockiana
| Autor: | Silvia Jiménez-Becker, C. Diara, Alberto Pardossi, María Teresa Lao, Giulia Carmassi, B. M. Plaza |
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| Rok vydání: | 2021 |
| Předmět: |
Fertigation
Iron Biomass Phytodepuration Copper Landfill Manganese Pansy Phytoremediation Sulphate Zinc phytoremediation lcsh:Agriculture iron Tap water Dry weight Leachate pansy Water content Chemistry landfill zinc lcsh:S sulphate Horticulture Wastewater copper manganese Agronomy and Crop Science phytodepuration |
| Zdroj: | riUAL. Repositorio Institucional de la Universidad de Almería Universidad de Almería Agronomy, Vol 11, Iss 186, p 186 (2021) Agronomy Volume 11 Issue 1 |
| Popis: | Landfill leachate can release pollutants into the environment. Nevertheless, it can be treated using a phytodepuration system via constructed wetlands to reduce contaminants. Moreover, this leachate can also increase the availability of macro and micronutrients in soil and water. In this trial, the reuse of untreated and treated wastewater from municipal solid waste (MSW) for fertigation was assessed. Plantlets of Viola × wittrockiana (pansy) were grown in a greenhouse and five fertigation treatments were applied: W9.0 (pure wastewater, EC 9.0 dS m&minus 1), W4.5 (diluted wastewater, EC 4.5 dS m&minus 1), DW4.5 (depurated wastewater, EC 4.5 dS m&minus 1), PW4.5 (phytodepurated wastewater, EC 4.5 dS m&minus 1), and T (tap water, control, EC 1.5 dS m&minus 1). The treatment with untreated wastewater had a negative effect on plant dry weight, leaf size, specific leaf area, water content, and the number of closed and open flowers, due to the high concentration of SO42&minus in the fertigation water. It also reduced the content of Cu, Mn, Fe, and Zn with respect to the control, because of the dry biomass diminution. Conversely, fertigation with phytodepurated wastewater enhanced root and shoot dry weight, water content, and the number of closed and open flowers. Cu and Mn contents in flowers surpassed the content detected in plants fertigated with untreated leachates. These findings demonstrate that phytodepurated wastewater obtained from MSW can be employed for the fertigation of this species. |
| Databáze: | OpenAIRE |
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