Relação entre atributos de solos e oxidação de enxofre elementar em quarenta e duas amostras de solos do Brasil

Horowitz, Nelson; Meurer, Egon José

doi:10.1590/s0100-06832007000300005

Cited by 5 publications

(12 citation statements)

References 20 publications

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“…Besides the initial pH, soil organic matter has been pointed out as an important conditioning factor of the S 0 oxidation (Horowitz & Meurer, 2007;Zhao et al, 2017), due to the dependence of microorganisms on the energy contained in organic compounds (Di Lonardo et al, 2019). In this study, however, there was no correlation between organic matter concentration and S 0 oxidation, possibly due to the organic matter concentration, higher than 25 g kg -1 not being limited to microbial development.…”

Section: Resultscontrasting

confidence: 53%

“…These results indicate the occurrence of limiting factors to the oxidation of S 0 , which will be further discussed. 2017), or disfavoring it, due to the presence of Al (Horowitz & Meurer, 2007;Herisson et al, 2014). Kulczycki (2021) studying the effect of S 0 doses over various types of soils, concluded that lowering soil pH impairs its oxidation rate.…”

Section: Resultsmentioning

confidence: 99%

“…In this study, however, there was no correlation between organic matter concentration and S 0 oxidation, possibly due to the organic matter concentration, higher than 25 g kg -1 not being limited to microbial development. Studies that reveal a relationship between organic matter and S 0 oxidation (Horowitz & Meurer, 2007;Zhao et al, 2017) present lower organic matter values, possibly limiting microbial development.…”

Section: Resultsmentioning

confidence: 99%

“…Several organisms may oxidize S 0 (Lucheta & Lambais, 2012;Zhao et al, 2017), as Acidithiobacillus (Malhotra et al, 2002;Mousavi et al, 2006;Tourna et al, 2014;Vitti et al, 2015), Penicillium and Aspergillus (Li et al, 2010). Their population and activity dynamics are strongly influenced by soil factors, consequently impacting the oxidation of S 0 (Horowitz & Meurer, 2006, 2007Vitti et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Elemental sulfur recommendation for pH reduction in soils from Southern Brazil

Dall’Orsoletta

Mumbach

Brignoli

et al. 2022

Rev. bras. eng. agríc. ambient.

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The elemental sulfur (S0) application may reduce soil pH, benefiting plants adapted to acid conditions and lessening problems of overliming. Nevertheless, there is no official recommendation for its application. The objective of the study was to quantify the S0 doses required to reduce the pH of soils from Southern Brazil. The experiment was carried out in the laboratory in a factorial scheme (5 × 5), with a completely randomized design and three replicates. The treatments consisted of five soils, and five doses of S0, corresponding to 0, 50, 100, 150, and 200% of the estimated dose need to reach pH 4.0. The applied doses of S0 resulted in reduction of pH and base saturation (V%) and increase of potential acidity (H + Al). These effects, however, were reduced due to the low rate of oxidation of the S0 applied (0.76-3.36%). The soil variables correlated with S0 oxidation were Mg2+ (0.86***), Al3+ (-0.82***), H + Al (-0.89***), V% (0.68***) and aluminum saturation (m%) (-0.87***). In the evaluated soils the oxidation of 50 kg ha-1 of S0 was required to reduce one unit of pH in H2O.

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Section: Resultscontrasting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Elemental sulfur recommendation for pH reduction in soils from Southern Brazil

Dall’Orsoletta

Mumbach

Brignoli

et al. 2022

Rev. bras. eng. agríc. ambient.

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“…Elemental S is oxidized mainly by autotrophic and heterotrophic microorganisms at a rate that depends on factors such as fertilizer grain size, soil aeration, temperature, moisture, OM and nutrient contents, soil acidity, and microbial biomass Meurer, 2006, 2007). Horowitz and Meurer (2007) evaluated elemental S oxidation in 42 soil samples from different Brazilian states and concluded that all soils were able to oxidize elemental S, albeit at significantly different rates. Horowitz and Meurer (2006) found elemental S application to significantly increase SO 4 2availability to plants after 20 days.…”

Section: Influence Of S Source On Crop Responsementioning

confidence: 99%

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Pias

Tiecher

Cherubin

et al. 2019

Rev. Bras. Ciênc. Solo

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Sulfur (S) fertilization recommendations for grain crops in Brazil were formerly established from studies on crops with a low yield potential grown on soils under conventional tillage (CT). However, the subsequent adoption of no-tillage (NT) altered S dynamics in the soil, making it necessary to carefully evaluate the applicability of these S fertilizer recommendations. In addition, the emergence of modern high-yield-potential genotypes, the successive application of concentrated low-sulfur fertilizers, and reduction in S atmospheric deposition have raised the likelihood of positive responses of crops to S fertilization. Available literature reports contrasting crop responses to S fertilization in Brazilian soils, ranging from substantial gains to slight yield losses depending on the particular crop, soil, and climate. The primary aim of this study was to examine available data for crop grain responses to S application in NT soils in order to ascertain whether existing recommendations established for Brazilian CT soils also hold for NT soils. A systematic review of data from 35 scientific publications spanning 58 crop harvests revealed a positive yield response to S fertilization in 31 % of the crop harvests, with an average yield increase of 16 %. Crops on soils with available SO 4 2--S contents above the critical level (viz., 7.5 mg dm -3 ) exhibited no positive response to S fertilization in any crop harvest (n = 18). Dry edible bean and corn were the most responsive crops, and canola and wheat, the least. For the trials with positive crop responses, a fertilizer rate of 26 kg ha -1 S sufficed to obtain at least 95 % of the maximum possible yield. In general, the S fertilization recommendations previously established for CT soil proved effective with grain crops on NT soils as a result of the critical levels of soil available SO 4 2--S and the fact that the recommended S rates are similar to those found in this study considering trials conducted under NT conditions only. However, existing recommendations could be improved by using additional criteria for soils with available SO 4 2--S contents below the critical level since a positive response was observed in 22 % (n = 18) and 92 % (n = 12) of the crop harvests under a subtropical and a tropical climate, respectively. Our results suggest that S fertilization must be prioritized in NT soils with available SO 4 2--S contents below 7.5 mg dm -3 in the 0.00-0.20 m layer, especially in tropical climate zones. In addition, regional fertilizer recommendation guidelines should consider crop type and yield expectation in order to facilitate more sustainable S management and increased crop yields in Brazil.

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Comparing various sulfur sources for soybean grown on an acid Oxisol in Brazil

Francisco

Chien

Ono³

et al. 2022

Agronomy Journal

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A greenhouse experiment and a 2-yr field trial were conducted to compare various S sources for soybean [Glycine max (L.) Merr.] grown on an acid Oxisol in Brazil. In the greenhouse, the sources included ammonium sulfate (AMS), monoammonium phosphate with a S ratio = 50:50 of AMS/elemental S (ES) -(AMS + ES), and ES + bentonite containing 90% ES. All sources were surface-applied at 0, 5, 10, 20, and 40 mg S kg -1 . Separately, all S sources were incorporated into the soil at 20 mg S kg -1 . Yield and S uptake by the grain followed the order AMS = MAP -(AMS + ES) > ES + bentonite. No significant differences in grain yield and S uptake were observed between surface application and incorporation, except those of surface application were greater than those of incorporation with MAP -(AMS + ES). In the field trial, single superphosphate (SSP) and phosphogypsum (PG) were also included. All sources were surface-applied at 30 kg S ha -1 yr -1 . Additionally, AMS was split-applied in equal amounts at planting and R1 stage. In both years, grain yield and S uptake followed the order AMS = MAP -(AMS + ES) = PG = SSP > ES + bentonite = control. The highest S uptake was observed with split-application of AMS in the first but not the second year. The benefit of a split application of AMS over a one-time application for S uptake in the first year was probably caused by reduced SO 4 -S leaching.

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Relação entre atributos de solos e oxidação de enxofre elementar em quarenta e duas amostras de solos do Brasil

Cited by 5 publications

References 20 publications

Elemental sulfur recommendation for pH reduction in soils from Southern Brazil

Elemental sulfur recommendation for pH reduction in soils from Southern Brazil

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Comparing various sulfur sources for soybean grown on an acid Oxisol in Brazil

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