Changes in Soil Aggregate Stability Induced by Mineral Nitrogen Fertilizer Application

Brtnický, Martin; Elbl, Jakub; Dvořáčková, Helena; Kynický, Jindřích

doi:10.11118/actaun201765051477

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…Fonte et al (2009) demonstrated that there was a 40% increase in the weight of the silt and clay content and a decrease in the microaggregate fraction after N addition. The decrease in aggregate stability with N addition was also reported by Brtnický et al (2017). Therefore, previous studies suggest that understanding of the response of aggregate and SOC stability to N application remains elusive.…”

Section: Introductionmentioning

confidence: 67%

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Combined effects of nitrogen fertilizer and straw application on aggregate distribution and aggregate‐associated organic carbon stability in an alkaline sandy loam soil

Wang

Khattak

et al. 2018

European J Soil Science

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Summary Research on aggregate‐associated organic carbon (AOC) stability has increased, but its response to nitrogen (N) and straw (S) application after nitrogen reduction in alkaline sandy loam soil remains unclear. A 2‐year field study and a short‐term incubation experiment were performed to investigate the combined effect of the N + S application on aggregate distribution and stability, and AOC content and mineralization in eastern China. The study involved three N amounts (75, 150 and 300 kg N ha−1) with or without straw amendments under continuous cotton–barley rotation. The N + S application promoted the formation of larger macroaggregates (8–2 mm), with larger mean weight diameter and geometric mean diameter than with N application alone. Aggregate stability increased significantly with increasing rate of N application. The amount of N had less effect on AOC content in the 0–20‐cm layer and cumulative mineralization of AOC in both layers compared with the N + S application. The addition of straw in promoting AOC, however, was more evident in the 20–40‐cm layer. Compared with N fertilizer alone, applying N + S increased the cumulative mineralization of AOC by 27.7% in the 0–20‐cm layer and by 80.9% in the 20–40‐cm layer for different rates of N and aggregate sizes. In addition, at 0–20‐cm depth, there was less C mineralization in macroaggregates than in microaggregates, indicating that macroaggregates showed better protection of AOC in that layer. Our study suggests that N application alone had a large effect on aggregate stability, whereas combined N + S application had a large effect on AOC content and its mineralization in the soil studied. Highlights We studied aggregate and aggregate‐associated organic carbon stability under N and straw application in alkaline sandy loam soil. Nitrogen and straw treatment carried out with prior application of a gradient of excessively large N inputs. Macroaggregates showed better protection of AOC in the 0–20‐cm soil layer. N and N + S applications had large effects on aggregate stability, AOC content and its mineralization.

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Section: Introductionmentioning

confidence: 67%

“…The decrease in aggregate stability with N addition was also reported by Brtnický et al . (). Therefore, previous studies suggest that understanding of the response of aggregate and SOC stability to N application remains elusive.…”

Section: Introductionmentioning

confidence: 97%

Combined effects of nitrogen fertilizer and straw application on aggregate distribution and aggregate‐associated organic carbon stability in an alkaline sandy loam soil

Wang

Khattak

et al. 2018

European J Soil Science

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“…Especially with fertilizer applications made in the greenhouse 109 production system, significant increases in aggregate stability are obtained, but the effect of inorganic applications are less than organic applications (Herencia et al 2011). On the contrary, it has been reported in some studies that especially nitrogen fertilizer applications disrupt the soil aggregate system and cause a decrease in stability (Fonte et al 2009;Brtnicky et al 2017).…”

Section: Aggregate Stabilitymentioning

confidence: 95%

Effect of fertigation with different pH and EC levels on selected physical soil properties

Kaplan¹,

Yılmaz

Maltaş³

et al. 2022

Mediterranean Agricultural Sciences

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In this study, the effects of fertigation with different pH and EC level on soil physical properties such as aggregate formation (AF), aggregate stability (AS) and available water content (AWC) of soil were investigated. In the study, single crop tomato (Solanum lycopersicum, Anıt F1) was grown under cover for two consecutive years. A total of six fertigation applications (F1: pH 7.2/EC 2.0; F2: pH 7.2/EC 3.5; F3: pH 6.5/EC 2.0; F4: pH 6.5/EC 3.5; F5: pH 5.0/EC 2.0 and F6: pH 5.0/EC 3.5) were created, two different EC levels and three different pH levels. Fertigation applications were applied to the soil in three replications and the study was carried out in 18 plots in total. Based on our results, the effect of fertigation applications on the AF of the soil and the AWC during the year was not significant. On the contrary, the effect of fertigation on AS has occurred at different levels and degrees of importance in terms of the effect between years. Fertigation F5, which has a pH 5.0/EC 2.0 levels, caused a significant increase in the stability of 2-1 mm aggregates.

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Long-term effects of wheat continuous cropping vs wheat in crop rotation on carbon content and mineralisation, aggregate stability, biological activity, and crop yield

Holatko,

Brtnicky,

Baltazar

et al. 2024

European Journal of Agronomy

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Changes in Soil Aggregate Stability Induced by Mineral Nitrogen Fertilizer Application

Cited by 5 publications

References 20 publications

Combined effects of nitrogen fertilizer and straw application on aggregate distribution and aggregate‐associated organic carbon stability in an alkaline sandy loam soil

Combined effects of nitrogen fertilizer and straw application on aggregate distribution and aggregate‐associated organic carbon stability in an alkaline sandy loam soil

Effect of fertigation with different pH and EC levels on selected physical soil properties

Long-term effects of wheat continuous cropping vs wheat in crop rotation on carbon content and mineralisation, aggregate stability, biological activity, and crop yield

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