Recovered phosphorus for a more resilient urban agriculture: Assessment of the fertilizer potential of struvite in hydroponics

Arcas-Pilz, Verónica; Rufí-Salís, Martí; Parada, Felipe; Petit‐Boix, Anna; Gabarrell, Xavier; Villalba, Gara

doi:10.1016/j.scitotenv.2021.149424

Cited by 36 publications

(15 citation statements)

References 43 publications

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“…All the fruits' nutrients concentrations obtained are in concordance with published data [45,46] without detecting any type of deficiency or stress, being the magnesium the only nutrient that showed significant differences within the same year, in the 2020 trial, with a higher amount in recovered treatments (STR and SAN) due to struvite composition (Table 4). However, nutrient leaves' content exhibited more dispersion in 2019, with a higher content of P and N in STR and SAN treatments (Table 4), probably due to the higher amount supplied as other authors reported [8]. These results confirm a good performance of the recovered products in the NS.…”

Section: Fruit Yield Quality and Biomasssupporting

confidence: 72%

“…Even so, some authors have reported highly variable struvite dissolution rates in soils with alkaline pH [7]. Besides, some authors [8] assessed the struvite performance as slow-release fertilizer in hydroponics. Nevertheless, the use of struvite in fertigation as a raw material (fertilizer) for nutrient solution (NS) manufacture has not been studied so far.…”

Section: Introductionmentioning

confidence: 99%

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Use of Recovered Struvite and Ammonium Nitrate in Fertigation in Tomato (Lycopersicum esculentum) Production for boosting Circular and Sustainable Horticulture

et al. 2021

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Struvite and ammonium nitrate are products obtained from widely studied processes to remove phosphorus (P) and nitrogen (N) from waste streams. To boost circularity in horticulture, these recovered products should be applied to edible crops. Particularly, struvite has not been implemented in fertigation as the unique source of P fertilizer. Therefore, a soilless system greenhouse experiment was conducted for tomato crops during two growing seasons. This study aims to compare the agronomic and environmental effectiveness of recovered products used in a nutrient solution for fertigation (NS) to synthetic fertilizer treatment. Moreover, two different N concentrations of the NS were tested to evaluate the impact on the N-leaching. Additionally, struvite dissolution tests were performed to ensure its solubility. Satisfactory results of struvite solubilization were obtained. Results show that both nutrient-recovered products can be used as fertilizers in NS, due to their non-statistical significance in total yield production and fruit quality. However, ammonium nitrate treatment, depending on the crop variety, showed a lower marketable yield. Moreover, the variation on N concentration input exhibited leachate concentration differences, with N leached percentage values from 36 to 13%. These results give deeper insights into the future potential utilization of nutrient-recovered products and technical data to optimize fertigation strategies.

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Section: Fruit Yield Quality and Biomasssupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Use of Recovered Struvite and Ammonium Nitrate in Fertigation in Tomato (Lycopersicum esculentum) Production for boosting Circular and Sustainable Horticulture

et al. 2021

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“…These five authors publish numerous investigations focused on CE and agriculture, such as "Recirculating water and nutrients in urban agriculture: An opportunity towards environmental sustainability and water use efficiency? ", among many others [57][58][59]. The second group of authors is represented by Joan Rieradevall I. and Felipe Parada, and has other collaborators such as Verónica Arcas-Pilz.…”

Section: Conflicts Of Interestmentioning

confidence: 99%

An Evolutionary Approach on the Framework of Circular Economy Applied to Agriculture

et al. 2022

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In this current and global context led by scarcity of resources, environmental degradation, global climate change, and a progressive demand for food, the circular economy (CE) represents a key economic model or framework for sustainable, restorative, and regenerative agriculture. Hence, CE applied to agriculture seeks to close the life cycle of products, services, waste, water, and energy to obtain a better use of resources and a reduction of the ecological impact. An initial review of the literature corroborates the hypothesis that the CE framework has not yet been comprehensively adapted to the field of agriculture. This research seeks to overcome this gap in relation to the performance of the circularity of agricultural production systems in support of decision-making processes. A bibliometric analysis of 1060 documents was carried to synthesize the knowledge base on this topic. The results show recent studies that identify weaknesses derived from food production, such as waste generation, biomass, water pollution, and greenhouse gas emissions. It has been identified how their analysis has developed to date and what terms allow us to visualize new approaches; consequently, it is a useful tool for researchers and sponsors who provide financial resources for the development of new lines of research.

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“…It can help reduce the extraction of resources as phosphorus, which faces the risk of depletion ( Nesme et al., 2018 ). It also diminishes the high energy consumption of fertilizers containing nitrogen ( Land and Water Division, 2002 ), and can be used to supply phosphorous in hydroponic production ( Arcas-Pilz et al., 2021 ). The possibility of recycling nutrients is desirable for countries like Mexico, where agriculture is a relevant economic activity; in 2019 Mexico was the 7th producer of maize worldwide, based mainly on small farmers, which account for 60% of the production ( SADR, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Recycling of nutrients from landfill leachate: A case study

Lucero-Sorbazo¹,

Beltrán-Villavicencio²,

González-Aragón³

et al. 2022

Heliyon

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Recovered phosphorus for a more resilient urban agriculture: Assessment of the fertilizer potential of struvite in hydroponics

Cited by 36 publications

References 43 publications

Use of Recovered Struvite and Ammonium Nitrate in Fertigation in Tomato (Lycopersicum esculentum) Production for boosting Circular and Sustainable Horticulture

Use of Recovered Struvite and Ammonium Nitrate in Fertigation in Tomato (Lycopersicum esculentum) Production for boosting Circular and Sustainable Horticulture

An Evolutionary Approach on the Framework of Circular Economy Applied to Agriculture

Recycling of nutrients from landfill leachate: A case study

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