Accumulation of copper and zinc fractions in vineyard soil in the mid-western region of Santa Catarina, Brazil

Couto, Rafael da Rosa; Benedet, Lucas; Comin, Jucinei José; Filho, Paulo Belli; Martins, Sergio Roberto; Gatiboni, Luciano Colpo; Radetski, Marilice; Valois, Cassio Marques de; Ambrosini, Vítor Gabriel; Brunetto, Gustavo

doi:10.1007/s12665-014-3861-x

Cited by 32 publications

(9 citation statements)

References 37 publications

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“…The undetermined pool envisaged as residual fraction was found to be in the range of 25 -33% (of total Zn) which was somewhat lower than reported by Iyengar et al, 1981 [22] ; Shuman, 1979 [57] , 1985 [58] ; Singh et al, 1988 [65] and Neilsen, 1990. However, the findings that Fe-Mn bound and residual fraction of zinc attributes more than 80% of the total pool is in good agreement with the findings of Brunetto et al, 2014 [9] ; de Rosa Couto et al, 2014 [10] and Beygi and Jalali, 2019 [5] . The relationships and interrelationships of Mn fractions are quiet in good agreements with the findings of Narender et al, 2016 [47] for SE-Mn; Agbenin, 2003 [1] and Narender et al, 2016 [47] for OB-Mn; Herbert et al, 1998 [20] ; Ariza et al, 2000 [2] for MnOx, Am_FeOx and Cry_FeOx fractions.…”

Section: Discussionsupporting

confidence: 89%

Characterization and delineation of micronutrient pools in some selected Inceptisols and Alfisols of West Bengal

Bhattacharya¹,

Sengupta²,

Halder³

2020

Int. J. Chem. Stud.

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The present study has been conducted to determine the cationic micronutrient (Zn, Cu, Fe, Mn) pools based on other factors towards plant availability in 20 selected soil series (10 series each from Alfisols and Inceptisols) of West Bengal. Apart from physicochemical characterization, the soils were sequentially extracted for different fractions such as the water-soluble and exchangeable (SE); organically bound (OB); manganese oxide-bound / occluded (MnOx), amorphous iron oxide-bound (Am_FeOx), crystalline oxide-bound (Cry_FeOx) fractions using sequential extraction process. The percent predominance of the manganese fractions in the selected Alfisols and Inceptisols followed the order as MnOx > Am_FeOx > Cry_FeOx > OB > SE fractions while for copper, it followed the order as OB > Cry_FeOx > Am_FeOx > SE > MnOx fractions. The percent predominance of the iron fractions in the selected Alfisols and Inceptisols followed the order as Cry_FeOx > Am_FeOx > MnOx > OB > SE fractions while for zinc, it followed the order as Am_FeOx > Cry_FeOx > MnOx > OB > SE fractions. The different fractions of Zn, Cu, Fe, Mn were then stepwise regressed with other fractions and soil physicochemical properties. The most phyto-available fraction i.e. soluble and exchangeable Mn, Cu, Fe and Zn was found to be mostly governed by clay content of soil and organically bound fractions of respective elements.

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Section: Discussionsupporting

confidence: 89%

Characterization and delineation of micronutrient pools in some selected Inceptisols and Alfisols of West Bengal

Bhattacharya¹,

Sengupta²,

Halder³

2020

Int. J. Chem. Stud.

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“…Furthermore, the higher accumulation of Zn Total in the surface layers of the soil of the orchards, particularly orchard O18, is associated with a larger number of Zn-containing foliar fungicide applications for the preventive control of fungal diseases over the years (Brunetto et al 2013). As seen for Cu, accumulation of Zn forms on the surface is also associated with an absence of soil disturbance in the rows and between the rows of apple trees, in addition to Zn cycling in the soil by the ground cover plants located in the rows and between rows of orchards (Couto et al 2015;Hristovski et al 2014).…”

Section: Discussionmentioning

confidence: 90%

Copper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil

et al. 2018

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“…Cuprafor Micro ® (Quimicas del Valles, 50% copper oxychloride) is a metal-based fungicide commonly used in organic farming to prevent spore germination; it is authorized in organic management. The RD was calculated as 15.5 mg kg −1 (corresponding to 7.75 mg Cu kg −1 of dry soil) for a soil density of 1.29 and considering that the active compounds of this fungicide are mostly found in the top 5 cm of soil (Couto et al, 2015). Based on literature reviews (Ma, 1984; Spurgeon et al, 2004; Bart et al, 2017; Pesticide Properties DataBase [PPDB], 2018) and taking into account that Cu can accumulate in soils, we tested 3.33, 10, and 30 times the RD, which corresponds to the addition of 25.8, 77.5, and 232.3 mg kg −1 of Cu.…”

Section: Methodsmentioning

confidence: 99%

Earthworms Mitigate Pesticide Effects on Soil Microbial Activities

et al. 2019

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Earthworms act synergistically with microorganisms in soils. They are ecosystem engineers involved in soil organic matter degradation and nutrient cycling, leading to the modulation of resource availability for all soil organisms. Using a soil microcosm approach, we aimed to assess the influence of the earthworm Aporrectodea caliginosa on the response of soil microbial activities against two fungicides, i.e., Cuprafor Micro ® (copper oxychloride, a metal) and Swing ® Gold (epoxiconazole and dimoxystrobin, synthetic organic compounds). The potential nitrification activity (PNA) and soil enzyme activities (glucosidase, phosphatase, arylamidase, and urease) involved in biogeochemical cycling were measured at the end of the incubation period, together with earthworm biomass. Two common indices of the soil biochemistry were used to aggregate the response of the soil microbial functioning: the geometric mean (Gmean) and the Soil Quality Index (SQI). At the end of the experiment, the earthworm biomass was not impacted by the fungicide treatments. Overall, in the earthworm-free soil microcosms, the two fungicides significantly increased several soil enzyme and nitrification activities, leading to a higher GMean index as compared to the non-treated control soils. The microbial activity responses depended on the type of activity (nitrification was the most sensitive one), on the fungicide (Swing ® Gold or Cuprafor Micro ® ), and on the doses. The SQI indices revealed higher effects of both fungicides on the soil microbial activity in the absence of earthworms. The presence of earthworms enhanced all soil microbial activities in both the control and fungicide-contaminated soils. Moreover, the magnitude of the fungicide impact, integrated through the SQI index, was mitigated by the presence of earthworms, conferring a higher stability of microbial functional diversity. Our results highlight the importance of biotic interactions in the response of indicators of soil functioning (i.e., microbial activity) to pesticides.

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Accumulation of copper and zinc fractions in vineyard soil in the mid-western region of Santa Catarina, Brazil

Cited by 32 publications

References 37 publications

Characterization and delineation of micronutrient pools in some selected Inceptisols and Alfisols of West Bengal

Characterization and delineation of micronutrient pools in some selected Inceptisols and Alfisols of West Bengal

Copper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil

Earthworms Mitigate Pesticide Effects on Soil Microbial Activities

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