Inputs of rare earth elements in Brazilian agricultural soils via P-containing fertilizers and soil correctives

Silva, F.B.V.; Nascimento, Clístenes Williams Araújo do; Alvárez, A.; Araújo, Paula Renata Muniz

doi:10.1016/j.jenvman.2018.11.031

Cited by 37 publications

(7 citation statements)

References 17 publications

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“…For elements in Group B, the strong Al/La relationship observed may result from the association of these two elements with humic substances leached from the soils, which enhances their solubility by forming complexes [85][86][87][88]. Due to the possible formation of phosphate-REE complexes [38,39], La can originate from both rock weathering and the spreading of mineral fertilizers [89,90]. For elements in Group C, a previous study estimated that in our study area, more than 50% of As and Cr and more than 75% of Cu, Ni, Pb and Zn in soils are released by animal manure and that more than 40% of the Cd comes from mineral fertilizers (ADEME, [91]).…”

Section: Origin Of Tmm In Stream Watersmentioning

confidence: 99%

Determining the Regional Geochemical Background for Dissolved Trace Metals and Metalloids in Stream Waters: Protocol, Results and Limitations—The Upper Loire River Basin (France)

Gassama

Curie

Vanhooydonck

et al. 2021

Water

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To avoid the improper disqualification of a watershed for which the water–rock interaction (WRI) may produce trace element concentrations exceeding established guidelines, it is of the utmost importance to properly establish natural geochemical backgrounds. Using the example of the crystalline Upper Loire River Basin, we are proposing a methodology based on the selection and chemical characterization of water and sediment samples from 10 monolithologic watersheds supposedly lowly impacted by anthropogenic inputs. We collected water samples from each watershed’s spring down to its outlet and measured dissolved major, minor and selected trace elements (Al, As, Ba, Cd, Co, Cr, Cs, Cu, La, Ni, Pb, U, V and Zn) at low- and high-water stages. Results show that the chemical signature of the stream waters is controlled by mineral weatherability rather than by the available rock stock. As a result, the variability in dissolved metal concentrations between the principal lithologies is similar to that observed within each of them. While some elements mostly result from WRI, others clearly identify high inputs from topsoil leaching. Comparison with published data evidences the need to subdivide studied watersheds into distinct sectors, according to the distance from the spring, in order to define reliable natural backgrounds.

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Section: Origin Of Tmm In Stream Watersmentioning

confidence: 99%

Determining the Regional Geochemical Background for Dissolved Trace Metals and Metalloids in Stream Waters: Protocol, Results and Limitations—The Upper Loire River Basin (France)

Gassama

Curie

Vanhooydonck

et al. 2021

Water

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“…Rare earth elements (REEs) are composed of 15 elements of the lanthanides (Z = 57-71). These elements are usually separated into two groups known as light rare earth elements (LREEs; La-Eu) and heavy rare earth elements (HREEs; Gd-Lu) (Lara et al, 2018;Dinali et al, 2019;Silva et al, 2019). REEs are contained in more than 200 minerals, mainly in silicates, oxides, carbonates, phosphates and fluorides (Goodenough et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…REEs are essential for the industry, agriculture, and modern living. However, the increasing storage of REEs in soils has caused adverse impacts on the environment (Liu et al, 2019;Omodara et al, 2019) and human health (Bai et al, 2019;Pagano et al, 2019), especially in agricultural regions (Ramos et al, 2016;Silva et al, 2019;Jin et al, 2019). Knowledge on the background concentration and quality reference values (QRVs) is fundamental to manage soils properly, preventing risks to humans and environment (Nogueira et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Quality reference values for rare earth elements in soils from one of the last agricultural frontiers in Brazil

Silva

Oliveira

Silva

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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Environmental impacts caused by the addition of rare earth elements (REEs) to agricultural soils are a growing concern. The sedimentary basin of the Gurguéia River is located in one of the last agricultural frontiers in Brazil; nevertheless, data regarding quality reference values (QRVs) for REEs in soils are still scarce. The objective of this study was therefore to determine the natural concentration and establish the QRVs of REEs in soils of Gurguéia watershed, Brazil. Fifty-five composite soil samples were collected at sites under no or minimal anthropic interference. The average REE natural concentrations in soils from the Gurguéia watershed were lower than those found in other regions of Brazil and worldwide, following the order (mg kg -1 ): Ce (14.01) > Nd (6.19) > La (5.52) > Pr (2.51) > Sm (1.45) > Gd (0.93) > Dy (0.63) > Er (0.42) > Yb (0.39) > Tb (0.28) > Eu (0.26) > Lu (0.20). The parent material was the main factor that controlled the distribution of REEs in soils. The QRVs in soils followed the order (mg kg -1 ): Ce (18.8) > Nd (7.92) > La (6.32) > Pr (3.3) > Sm (1.97) > Gd (1.35) > Dy (0.85) > Er (0.55) > Yb (0.47) > Tb (0.37) > Lu (0.25). These values serve as a basis to assist the development of legislation, including REE thresholds for Brazilian soils.

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“…Indiscriminate and excessive chemical fertilizer use has an adverse effect on physical, chemical and biological properties of the soil, deteriorating the soil's quality and in time diminishing agricultural productivity [ 1 , 2 , 3 ]. Therefore, a need to evaluate alternative mineral and/or organic mineral fertilizer sources arises.…”

Section: Introductionmentioning

confidence: 99%

“…Phosphate rock (PR) is a natural source of inorganic phosphorous that can be an alternative to chemically synthesized fertilizers. Its rational use, employed by itself or in combination with other organic products would help diminish the effect of intensive agricultural practices [ 1 , 2 , 3 ]. Colombia is a privileged country, since it has important PR deposits, located in the Departments of Boyacá, Huila, Norte de Santander and Cauca.…”

Section: Introductionmentioning

confidence: 99%

Phosphate-solubilizing Pseudomonas sp., and Serratia sp., co-culture for Allium cepa L. growth promotion

Blanco-Vargas

Rodríguez-Gacha

Sánchez-Castro

et al. 2020

Heliyon

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Different genus of bacteria has been reported with the capacity to solubilize phosphorus from phosphate rock (PR). Pseudomonas sp., (A18) and Serratia sp., (C7) isolated from soils at the “ Departamento de Boyacá ” Colombia, where Allium cepa is cultivated. Bacteria were cultured in MT11B media and evaluated as a bio-fertilizer for A. cepa germination and growth during two months at greenhouse scale. Pseudomonas sp., and Serratia sp., cultured at 30 °C, 48 h in SMRS1 agar modified with PR, (as an inorganic source of phosphorus), presented a phosphate solubilization index (SI) of 2.1 ± 0.2 and 2.0 ± 0.3 mm, respectively. During interaction assays no inhibition halos were observed, demonstrating there was no antagonism between them. In MT11B media growth curve (12 h) demonstrated that co-culture can grow in the presence of PR and glucose concentrations 7.5-fold, lower than in SMRS1 media and brewer's yeast hydrolysate; producing phosphatase enzymes with a volumetric activity of 1.3 ± 0.03 PU at 6 h of culture and 0.8 ± 0.04 PU at 12 h. Moreover, co-culture released soluble phosphorus at a rate of 58.1 ± 0.28 mg L −1 at 8 h and 88.1 ± 0.32 mg L −1 at 12 h. After five days of evaluation it was observed that germination percentage was greater than 90 % of total evaluated seeds, when placing them in contact with the co-culture in a concentration of 1 × 10 8 CFU mL −1 . Furthermore, it was demonstrated that co-culture application (10 mL per experimental unit to complete 160 mL in two months) at 8.0 Log 10 CFU mL −1 twice a week for two months increased A. cepa total dry weight (69 ± 13 mg) compared with total dry weight (38 ± 5.0 mg) obtained with the control with water.

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Inputs of rare earth elements in Brazilian agricultural soils via P-containing fertilizers and soil correctives

Cited by 37 publications

References 17 publications

Determining the Regional Geochemical Background for Dissolved Trace Metals and Metalloids in Stream Waters: Protocol, Results and Limitations—The Upper Loire River Basin (France)

Determining the Regional Geochemical Background for Dissolved Trace Metals and Metalloids in Stream Waters: Protocol, Results and Limitations—The Upper Loire River Basin (France)

Quality reference values for rare earth elements in soils from one of the last agricultural frontiers in Brazil

Phosphate-solubilizing Pseudomonas sp., and Serratia sp., co-culture for Allium cepa L. growth promotion

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