Model-based rationalization of sulphur mineralization in soils using 35S isotope dilution

Vermeiren, Charlotte; Smolders, Erik; McLaughlin, Michael J.; Degryse, Fien

doi:10.1016/j.soilbio.2018.01.013

Cited by 13 publications

(8 citation statements)

References 30 publications

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“…In all three sites, the percentage of plant S derived from fertilizer SO 4 -S strongly decreased in the first year but showed little change in the second year (Figure 3). This decrease can be explained by dilution of added SO 4 -S into the labile soil S pool [35]. The labile soil S pool includes both the indigenous soil SO 4 -S, in which the dilution is immediate, and the labile organic sulfur pool.…”

Section: Discussionmentioning

confidence: 99%

“…Kirchmann et al [5] carried out mass balance calculations for a long-term field experiment (35 years of continuous crop cultivation) in central Sweden (humid continental climate, precipitation of 660 mm year −1 ) and estimated that 88% of S added as ammonium sulfate, at a cumulative rate of 3200 kg S ha −1 , was leached from the soil. Friesen [6] carried out a field trial in Togo (tropical climate, precipitation of 1500 mm year −1 ) using 35 S-labeled single superphosphate (SSP). Soil sampling indicated that 44% of applied SO 4 -S had leached below 90 cm depth by the end of the cropping season.…”

Section: Introductionmentioning

confidence: 99%

“…The use of isotopic tracers does not rely on a yield response, but allows direct measurement of the amount of fertilizer that is taken up by the plant [15]. Few studies have used isotopic tracers for assessing the fate of fertilizer S. Goh and Gregg [16] studied the fate of 35 S-labeled gypsum (CaSO 4 • 2 H 2 O) in nine pasture sites in New Zealand. They found that 15 to 40% of the applied SO 4 -S was converted to organic S within 75 days or less and that >30% of applied S was leached from the topsoil within 2 months of application at five of the nine sites.…”

Section: Introductionmentioning

confidence: 99%

“…They found that 15 to 40% of the applied SO 4 -S was converted to organic S within 75 days or less and that >30% of applied S was leached from the topsoil within 2 months of application at five of the nine sites. Friesen [6] compared the contribution of SSP and ES-fortified triple superphosphate (TSP) in a field trial in Togo using 35 S-labeled fertilizers, concluding that the ES-fortified TSP was equally effective as SSP in the first year, but had greater residual effectiveness due to less leaching. Sanborn et al [17] used S fertilizers at natural abundance levels but with distinct signatures from regional background S isotope ratios to estimate the contribution of these fertilizers to S uptake by pine (Pinus contorta) from isotope analysis of the leaves.…”

Section: Introductionmentioning

confidence: 99%

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Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

et al. 2020

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Field trials with labeled fertilizers can be used to provide information on fertilizer efficiency, residual value, and nutrient fate. We assessed the uptake from elemental S (ES) and sulfate S (SO4-S) in S-fortified monoammonium phosphate fertilizers by various crops at three sites in Argentina, Brazil, and Canada. The S sources were labeled with 34S, and the 34S abundance in the plant tissue was analyzed at an early stage and at maturity over two consecutive years. At the sites in Argentina and Canada, the recovery of ES in the crop was smaller than that of SO4-S in the first year, while the opposite was true in the second year. At the Brazilian site, the recovery of ES was similar to that of SO4-S in the first year, but higher in the second year. In the Argentina and Canada sites, the cumulative recovery of SO4-S was >65% and that of ES was 20−25%. In the Brazilian site, the cumulative recovery of SO4-S was 9% and that of ES 16%. The higher recovery of ES than of SO4-S in the Brazilian site was attributed to leaching of added SO4-S and relatively fast oxidation of ES due to the warm climate. These results suggest that ES may be more suitable than SO4-S as a fertilizer S source in warm humid climates, while inclusion of SO4-S in the fertilizer is recommended in colder climates as slow oxidation limits the initial availability of ES.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

et al. 2020

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“…Recent studies show that in the main soybean producing countries, namely Brazil, the United States, and Argentina, S-deficient soil is a main concern for soybean crops (Salvagiotti et al, 2012;Divitoet al, 2015). This is due to increased soil use and the use of S-free fertilizers, which tend to augment S deficiencies in crops (Vermeiren et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Sulfur modulates yield and storage proteins in soybean grains

Ibañez

Santos

Lapaz

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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This study evaluated the nutritional quality, yield, and storage protein modulation in soybean grains in response to levels and sources of sulfur (S) in a dystrophic Ultisol. We used five levels of S (0, 50, 100, 150 and 200 mg kg-1) and four sources of S (elemental S pastille-ESPA, gypsum-GY, gypsite-GI and elemental S powder-ESPO). Plants treated with 50 mg kg-1 of GY, GI, and ESPO and 200 mg kg-1 of ESPA had the largest grain yield values. Low S supply resulted in lower yields for all S sources tested. Sulfur deficiencies were observed at all levels for ESPA, resulting in lower concentrations of globulin and higher concentration of glutelin and albumin in the grains, possibly because the S content in the leaf was below the range adequate for soybean, leading to in lower yield values. In general, the application of S sources (GY, GI, and ESPO) increased all protein fractions. The results show that proper application of S is essential to optimize soybean yield and increase storage proteins in the grains. The granulometry of ESPA and ESPO fertilizers was a key factor for the availability of S to soybean plants. This study presents relevant information on S fertilization of soybeans, which could provide better grain nutritional quality and increased storage proteins with benefits to animal health.

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Sulfur fertilization strategy affects grass yield, nitrogen uptake, and nitrate leaching: A field lysimeter study^#

Aspel

Murphy

McLaughlin

et al. 2022

J. Plant Nutr. Soil Sci.

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Background Globally and at the European Union level there are mounting concerns regarding nitrogen (N) losses from agricultural systems and pressure to reduce N losses to water and air. Suboptimal plant sulfur (S) availability can reduce plant N efficiency and thereby increase N loss potential. Climate change action demands lower sulfur dioxide emissions thus S deposition levels are at an all‐time low. Aims The objectives of the current study were to (1) determine the potential for adequate S nutrition to increase grassland yield and N efficiency, (2) determine if alleviating S deficiency reduces nitrate leaching, and (3) evaluate a number of strategies for applying S including the use of cattle slurry. Methods This work was completed using a free‐draining sandy loam grassland lysimeter facility. There were six treatments using calcium ammonium nitrate (CAN), CAN + calcium sulfate (CAN+S), ammonium sulfate + CAN (AS+CAN), and slurry (Slurry+CAN and Slurry+CAN+S, respectively) to deliver S strategies. The yield, plant N and S uptake, and nitrate and sulfate leachate were measured to compare treatments. Results Application of mineral S fertilizer increased yields significantly (up to 2,907 kg ha–1) and increased apparent fertilizer nitrogen recovery from 39% to 47–49%. Alleviating S deficiency also significantly decreased nitrate leaching to levels not differing significantly from the control. There was a reduction of 46% in nitrate leaching with the addition of mineral S (CAN+S and AS+CAN) compared to N only. The nitrate concentration standard for drinking water was not breached for treatments that included S (6.6–11 mg NO3–‐N L–1), whereas it was breached for those without S (23–40 mg NO3–‐N L–1). The S applied in the slurry treatment was not adequate (9 kg S ha–1) to meet plant requirements. Conclusion This study provides evidence that optimization of S nutrition has the potential to deliver large agronomic and environmental benefits along with potential as a nitrate leaching migration strategy on S‐deficient soils.

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Model-based rationalization of sulphur mineralization in soils using 35S isotope dilution

Cited by 13 publications

References 30 publications

Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

Sulfur modulates yield and storage proteins in soybean grains

Sulfur fertilization strategy affects grass yield, nitrogen uptake, and nitrate leaching: A field lysimeter study^#

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Model-based rationalization of sulphur mineralization in soils using 35S isotope dilution

Cited by 13 publications

References 30 publications

Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

Sulfur Uptake from Fertilizer Fortified with Sulfate and Elemental S in Three Contrasting Climatic Zones

Sulfur modulates yield and storage proteins in soybean grains

Sulfur fertilization strategy affects grass yield, nitrogen uptake, and nitrate leaching: A field lysimeter study#

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Sulfur fertilization strategy affects grass yield, nitrogen uptake, and nitrate leaching: A field lysimeter study^#