| Title | Changes In Metabolic Profile Of Lettuce Plants Fertilized With Olive Oil Mills Sludge |
|---|---|
| ID_Doc | 10794 |
| Authors | Beni, C; Casorri, L; Masciarelli, E; Ficociello, B; Di Luigi, M; Aromolo, R; Ritota, M |
| Title | Changes In Metabolic Profile Of Lettuce Plants Fertilized With Olive Oil Mills Sludge |
| Year | 2022 |
| Published | Fresenius Environmental Bulletin, 31, 8A |
| Abstract | The use of agro-industrial waste biomass to preserve or restore the soil fertility represents a model of circular economy in the crop treatments, replacing the use of non-renewable raw products in conventional agriculture. However, the pollution risks embedded in this waste use cannot be neglected. In this paper, the olive oil mill sludge (OOMS) was evaluated as a fertilizer to restore the soil functional qualities. The first phase of the experimentation was carried out in open chambers in order to carry out an agronomic, environmental and toxicological evaluation of the sludge effects on the soil, and on lettuce used as a witness organism, in two different soil types (clay-loamy and sandy). The analyzed parameters include the chemical-physical characteristics of the investigated soils, and the content of some minerals in the plants edible portions. Moreover, the biometric characteristics, and the metabolic profile of lettuce were investigated. Preliminary tests for phytotoxicity and genotoxicity have suggested that the use of OOMS does not appear to cause toxicity. The metabolic profile of lettuce showed the major differences in the region of the phenolic compounds, with an increase observed in the lettuce samples cultivated in the sandy soil treated with OOMS. The plants biometric examination showed an increase in the ratio between leaf area and primary root length. Further experimental tests will be carried out to confirm these preliminary results. |
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