Comparison of Ammonium Sulfate With Other Nitrogen and Sulfur Fertilizers in Increasing Crop Production and Minimizing Environmental Impact

Chien, S. H.; Gearhart, Mercedes M.; Villagarcía, Sven

doi:10.1097/ss.0b013e31821f0816

Cited by 119 publications

(108 citation statements)

References 39 publications

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“…While finely divided ES powder has been shown to supply sulphate in the short term, powdered ES is not a practical commercial fertiliser, due to the difficulties in handling powders and the explosion hazard of finely divided ES (Chien et al 2011). Commercial ES fertilisers often consist of prills or pastilles with high ES content (usually >80 % ES) and a small amount of binder (often bentonite).…”

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confidence: 99%

Availability of fertiliser sulphate and elemental sulphur to canola in two consecutive crops

et al. 2015

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Aims We compared elemental sulphur (ES) and sulphate fertilisers in terms of yield and S uptake. Methods Two consecutive canola crops were grown on 35 S-labelled soil amended with ammonium sulphate, ES-bentonite pastilles (90 % ES), or S-fortified ammonium phosphate (NP) fertilisers containing both sulphate-S and ES (5-8 % ES). The shoot yield, S concentration and specific activity of S in the shoot were determined. Results In the first crop, the yield was significantly lower in the control (without added ES) and ES pastille treatments than in the other treatments. Sulphur uptake was highly correlated with the added sulphate rate. In the second crop, the yield and S uptake was highest for the S-fortified NP fertilizers. The contribution of ES to the S uptake was circa 20 % in the first crop and 43 % in the second crop for the S-fortified NP fertilisers, but was negligible for the ES pastilles. Modelling indicated an oxidation rate of 0.6−0.7 % per day for the S-fortified NP fertilisers and 0.03 % per day for the ES pastilles. Conclusions The contribution of ES pastilles to S uptake was negligible in both crops. In contrast, Sfortified NP fertilisers showed a significant contribution of ES and higher S availability than sulphate-only fertiliser in the second crop.

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Availability of fertiliser sulphate and elemental sulphur to canola in two consecutive crops

et al. 2015

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“…However, commercial ES fertilizers are usually in granular form because of safety and practical considerations (Chien et al, 2011) (e.g., in the form of ES-fortified ammoniated phosphate fertilizers or as pastilles of ES particles bound together by bentonite). Several studies have indicated that oxidation of such granular fertilizers containing ES particles is slower than that of ES particles of the same size mixed through soil (Friesen, 1996;Hu et al, 2002).…”

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Effect of Cogranulation on Oxidation of Elemental Sulfur: Theoretical Model and Experimental Validation

Degryse

Silva

Baird

et al. 2016

Soil Science Soc of Amer J

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Most studies on elemental sulfur (Es) oxidation have focused on small Es particles mixed through soil, even though commercial Es fertilizers are usually in granular form. Although it has been recognized that cogranulation of Es decreases its oxidation rate, no attempt has been made to quantify this effect. We developed a conceptual model that predicts the "effective diameter" (the diameter of Es particles mixed through soil that would oxidize at the same rate as the granulated Es) by taking into account the effect of granulation on the effective surface area available to the Es in the granule cavity after the soluble macronutrient compound in the fertilizer has diffused away. To validate the model, the oxidation rate was determined for Es-fortified monoammonium phosphate fertilizer with varying Es content (20-250 g kg −1 ), Es particle diameter (25 or 60 mm), and granule diameter (1.8 or 3.4 mm). The time to reach 50% oxidation varied from 17 d for small granules at the lowest Es content to 210 d for the large granules with the highest Es content. In agreement with the model predictions, reducing Es particle size did not affect the oxidation rate except at the lowest Es rate, whereas reducing granule size increased the oxidation rate. Predicted and observed oxidation rates were in good agreement, indicating that the model describes the effect of granulation with reasonable accuracy. This model may assist in improving formulation of Es-containing fertilizers and guiding fertilizer recommendations.Abbreviations: ES, elemental sulfur; MAP, monoammonium phosphate; TSP, triple superphosphate. E lemental sulfur (ES) is a common S fertilizer source. Elemental S is insoluble in water and hence is not susceptible to leaching and also has the benefit of lower transport/handling costs because it is the most concentrated form of S. However, ES only becomes available to plants when it is oxidized to sulfate (Boswell and Friesen, 1993). Knowledge of the factors that affect ES oxidation is hence required to develop fertilizer recommendations for ES-containing fertilizers.The oxidation of ES particles is affected by biological, fertilizer, and soil-related factors (Germida and Janzen, 1993). Because ES oxidation is a biologically mediated process, it is strongly influenced by temperature. Janzen and Bettany (1987a) assessed ES oxidation in six soils in Saskatchewan, Canada, at temperatures ranging between 3 and 30°C and found Q 10 values (factor increase per 10°C increase) ranging from 3.2 to 4.3. Oxidation of ES is a surficial process, and the rate of oxidation is therefore proportional to the specific surface area of the ES particles. Soil properties also affect the oxidation rate, likely through their effect on the composition and abundance of the microbial community. For instance, Zhao et al. (2015) found that the surface-based oxidation rate of ES in 10 Australian soils ranged between 5 and 52 mg cm −2 d −1 and was positively correlated with the pH and organic matter content of the soil.

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“…Application of AS (ammonium sulphate) enhanced PM significantly (P ≤ 0.05) than urea and CAN (calcium ammonium nitrate) in both years (Table 3). According to Chien et al AS is the best N-fertilizer source which contains frees sulfur and had many potential agronomic and environmental benefits over urea and ammonium nitrate [14]. In Lloyd et al reported that urea (£100 per ton) is a less expensive form of N fertilizer than ammonium nitrate (£130 per ton) [15].…”

Section: Days To Physiological Maturitymentioning

confidence: 99%

“…In Y2 the TSW was increased with application of AS but the differences were not significant among the N-sources. According to Amanullah et al AS is the best N-fertilizer source which contains frees sulfur and had many potential agronomic and environmental benefits over urea and ammonium nitrate [14]. In Northwestern Pakistan where most of the soils are calcareous in nature, AS because of its free sulfur content, could be the most beneficial N-fertilizer in terms of soil improvement, higher crop growth, increase in number of leaves plant -1 , mean single and leaf area plant -1 and more dry matter partitioning to leaves.…”

Section: Seed Weightmentioning

confidence: 99%

Maize (Zea mays L.) Genotypes Differ in Phenology, Seed Weight and Quality (Protein and Oil Contents) when Applied with Variable Rates and Source of Nitrogen

Khan¹

2016

J Plant Biochem Physiol

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Field experiments were conducted during summer 2008-09 (Y1) and 2009-10 (Y2) at the Agronomy Research Farm of The University of Agriculture Peshawar-Pakistan to investigate the impact of different N-fertilizer sources [urea, calcium ammonium nitrate (CAN) and ammonium sulphate (AS)] and their levels (50, 100, 150 and 200 kg ha -1 ) on phenology, seed weight and composition (seed protein, oil and starch content) of maize (Zea mays L.) genotypes "Local cultivars (Azam and Jalal) vs. hybrid maize (Pioneer-3025)". The results revealed that the rest (all the experimental plots applied with N) had delayed phonological development and had produced heavy grains with higher protein, oil and starch contents over control (N not applied). In both years, the maturity was delayed, seed weight and seed protein content increased with the application of two higher N rates (150 and 200 kg ha -1 ) as compared with the two lower N rates (50 and 100 kg ha -1 ). Applications of N in the form of ammonium sulphate enhanced maturity and decreased seed weight but increased seed oil content over urea and calcium ammonium nitrate. The maize hybrid (P-3025) with delayed maturity produced heavy seeds and higher seed protein and oil contents as compared to the two local cultivars (Azam and Jalal). The hybrid (P-3025) was considered the more efficient maize genotype that responded very well to different sources and rates of N than the local maize cultivars.

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Comparison of Ammonium Sulfate With Other Nitrogen and Sulfur Fertilizers in Increasing Crop Production and Minimizing Environmental Impact

Cited by 119 publications

References 39 publications

Availability of fertiliser sulphate and elemental sulphur to canola in two consecutive crops

Availability of fertiliser sulphate and elemental sulphur to canola in two consecutive crops

Effect of Cogranulation on Oxidation of Elemental Sulfur: Theoretical Model and Experimental Validation

Maize (Zea mays L.) Genotypes Differ in Phenology, Seed Weight and Quality (Protein and Oil Contents) when Applied with Variable Rates and Source of Nitrogen

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