Landfarming as a sustainable management strategy for fresh and phytoremediated sediment

Macci, Cristina; Peruzzi, Eleonora; Doni, Serena; Vannucchi, Francesca; Masciandaro, Grazia

doi:10.1007/s11356-021-13134-y

Cited by 12 publications

(6 citation statements)

References 67 publications

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“…In this experiment, a combination of peat moss and treated sediment from the port of Leghorn (Italy) was used as a growing medium for soilless cultivation. The sediment had been treated through phytoremediation for 3 years and further reclaimed through 3 months of landfarming [11]. The tested substrate mixes (SM) were prepared with three different ratios (v/v) of pure peat moss (Pe) and treated sediment (TS): (i) 100% Pe, considered as the control (TS0); (ii) 87.5% Pe and 12.5% TS (TS12.5); (iii) 75% Pe and 25% TS (TS25).…”

Section: Plant Materials and Greenhouse Experimental Designmentioning

confidence: 99%

“…The presence of contaminants in sediments, particularly heavy metals, is an important aspect to consider since they are typically found in higher concentrations in dredged material compared with peat [11]. In our study, TS12.5 and TS25 had a considerably higher heavy metal content than peat, but it is worth noting that the overall heavy metal content in the sediment-based substrate dwindled by 36.4% in TS12.5 and 39.2% in TS25 by the end of the experiment.…”

Section: Effect Of Substrate Compositionmentioning

confidence: 99%

“…At the same time, the total microbial activity is increased, thus promoting the degradation of organic contaminants. Nevertheless, compared with soil, sediment is typically less homogeneous in its composition and particle size, has an alkaline pH, is lower in organic matter, and richer in heavy metals [11].…”

Section: Introductionmentioning

confidence: 99%

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Growing ‘Genovese’ and ‘Valentino’ Basil in Pots Using Peat Substrate Combined with Phytoremediated Sediment: Effects on Yield and Nutraceutical Content

et al. 2023

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Climate change is causing a decline in the availability of crucial resources such as water and fertile soil, leading to a detrimental impact on crop yields. Basil (Ocimum basilicum L.), an annual aromatic plant used worldwide for culinary, cosmetic, and medicinal purposes, is especially at risk due to its high water demand and specific growing requirements typical of the Mediterranean climate. In Italy, basil is an essential part of any herb garden and is also commonly found in households as a potted plant. Nowadays, the conventional practice of growing basil in pots with peat as the primary medium is not environmentally sustainable, which underscores the need for alternative and sustainable cultivation techniques to ensure the continued growth of this majestic king of herbs. A greenhouse factorial experiment was conducted to study the impact of peat replacement and reduced water supply on the growth and biochemical traits of basil plants. The study included two cultivars (‘Genovese’ and ‘Valentino’), three substrate mixes with phytoremediated dredged sediment (TS) at varying volume percentages (0%, 12.5%, and 25%), and three levels of water irrigation (normal, reduced by 25%, and reduced by 37.8%). Increasing the TS percentage resulted in higher germination rates and greater biomass production in both cultivars compared with the control. ‘Valentino’ potted plants produced a higher yield than those of ‘Genovese’, while the latter had higher pigment contents due to its genetic characteristics. All combinations of substrates mixed with the highest water amounts of irrigation positively impacted seed germination and biomass-based outputs, while control peat with reduced water availability led to lower plant yields and germination capacity. Substrates with TS had suitable physicochemical characteristics for plant development. Our findings suggest that using peat–TS mixtures can produce quality results comparable to or even better than conventional soilless culture using only peat. Thus, replacing peat with moderate percentages of TS can be an effective and sustainable practice for recycling phytoremediated sediments.

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Section: Plant Materials and Greenhouse Experimental Designmentioning

confidence: 99%

Section: Effect Of Substrate Compositionmentioning

confidence: 99%

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Growing ‘Genovese’ and ‘Valentino’ Basil in Pots Using Peat Substrate Combined with Phytoremediated Sediment: Effects on Yield and Nutraceutical Content

et al. 2023

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“…Marine sediment dredged from Leghorn Port (Central Italy, 43 • 33 25 N, 10 • 17 39 E) was phytoremediated and subjected to three years of landfarming [17]. The cultivation trials were performed at the Az.…”

Section: Growing Media Components Plant Materials and Cultivationmentioning

confidence: 99%

“…Three different growing media (GMs) were adopted for the trial: (i) a commercial peat-based substrate used as a control (TS0); (ii) a mixed substrate containing the commercial peat-based substrate and the remediated sediment at a ratio of 50:50 v/v (TS50); (iii) the remediated sediment alone (TS100). The physico-chemical characterization of the three substrates was performed according to Macci et al [17] before transplanting (Table 1). Wild strawberry commercial certified plants (F. vesca) cv.…”

Section: Growing Media Components Plant Materials and Cultivationmentioning

confidence: 99%

Effect of Innovative Sediment-Based Growing Media on Fruit Quality of Wild Strawberry (Fragaria vesca L.)

et al. 2023

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The aim of this research was to assess the quality attributes of the fruits of wild strawberry (Fragaria vesca) “Regina delle Valli” plants cultivated in pots in remediated-sediment-based growing media (GM). For this purpose, phytoremediated and landfarmed dredged sediment from Leghorn Harbor (Italy) was mixed into a peat-based commercial substrate at different volume/volume percentages (0, 50 and 100%), and the plants were grown under greenhouse conditions with two different water regimes (WR1 = 950 cc/day; WR2 = 530 cc/day). The fruit quality parameters were differentially affected by the main factors (GM and WR) and their combinations. The fruits obtained from the substrate richest in treated sediment and with the higher water regime (TS100-WR1) showed the highest content of sugars (4056, 5256 and 5178 mg/100 g FW of sucrose, glucose and fructose, respectively), total soluble solids (16 °Brix) and organic acids (30, 490 and 2300 mg/100 g FW of ascorbic, malic and citric acid, respectively). Neither the polyphenol content nor the DPPH radical scavenging activity were significantly affected by the treatments, although the TS100-WR1 plants showed the highest DPPH value (an inhibition of 0.71%). Among the analyzed organic contaminants, only total heavy hydrocarbons (C10–C40) were found in fruits from TS50 and TS100 at very low values, while heavy metals were not detected. The PCA statistical multivariate analysis performed on the visual, olfactory, chewing and tasting aspects of a sensorial evaluation clearly showed that the substrate’s chemical–physical properties exerted a relevant influence on the fruit samples, while the irrigation regimes did not affect significantly fruit quality parameters. A number of highly correlated soil/fruit parameters were found. The remediated sediment proved to be a valid alternative to peat for wild strawberry production, even at the highest concentration.

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A low impact sediment and green waste co-compost: can it replace peat in the nursery sector?

Macci,

Vannucchi,

Peruzzi

et al. 2023

Environ Dev Sustain

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Landfarming as a sustainable management strategy for fresh and phytoremediated sediment

Cited by 12 publications

References 67 publications

Growing ‘Genovese’ and ‘Valentino’ Basil in Pots Using Peat Substrate Combined with Phytoremediated Sediment: Effects on Yield and Nutraceutical Content

Growing ‘Genovese’ and ‘Valentino’ Basil in Pots Using Peat Substrate Combined with Phytoremediated Sediment: Effects on Yield and Nutraceutical Content

Effect of Innovative Sediment-Based Growing Media on Fruit Quality of Wild Strawberry (Fragaria vesca L.)

A low impact sediment and green waste co-compost: can it replace peat in the nursery sector?

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