Simultaneous determination of wettability and shrinkage in an organic residue amended loamy topsoil

Beck‐Broichsitter, Steffen; Ruth, Saskia M. van; Schröder, Richard; Fleige, Heiner; Gerke, Horst H.; Horn, Rainer

doi:10.2478/johh-2020-0007

Cited by 5 publications

(6 citation statements)

References 31 publications

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“…SOM affects the water stability of aggregates by decreasing their wettability and increasing their mechanical strength (Onweremadu et al, 2007). It is already well known that soil management practices influence the content and quality of SOM (Beck-Broichsitter et al, 2020;Leelamanie and Manawardana, 2019), which is a very important factor of water-stable aggregates (WSA) formation (Onweremadu et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

The importance of initial application and reapplication of biochar in the context of soil structure improvement

Juriga

Aydın

Hořák

et al. 2021

Journal of Hydrology and Hydromechanics

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It was shown that the use of biochar provides many benefits to agriculture by improving the whole complex of soil properties, including soil structure. However, the diverse range of biochar effects depends on its physicochemical properties, its application rates, soil initial properties etc. The impacts of biochar, mainly its reapplication to soils and its interaction with nitrogen in relation to water-stable aggregates (WSA) did not receive much attention to date. The aims of the study were: (1) to evaluate the effect of initial application (in spring 2014) and reapplication (in spring 2018) of different biochar rates (B0, B10 and B20 t ha−1) as well as application of biochar with N-fertilizer (40 to 240 kg N ha−1 depending on the requirement of the cultivated crop) on the content of WSA as one of the most important indicators of soil structure quality, (2) to assess the interrelationships between the contents of soil organic matter (SOM) and WSA. The study was conducted in 2017–2019 as part of the field experiment with biochar on Haplic Luvisol at the experimental station of SUA in Nitra, Slovakia. Results showed that initial application as well as reapplication of biochar improved soil structure. The most favorable changes in soil structure were found in N0B20B treatment (with biochar reapplication) at which a significantly higher content of water-stable macro-aggregates (WSAma) (+15%) as well as content of WSAma size fractions of > 5 mm, 5–3 mm, 3–2 mm and 2–1 mm (+72%, +65%, +57% and +64%, respectively) was observed compared to the control. An increase in SOM content, due to both, initial biochar application and its reapplication, significantly supported the stability of soil aggregates, while organic matter including humic substances composition did not.

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Section: Introductionmentioning

confidence: 99%

The importance of initial application and reapplication of biochar in the context of soil structure improvement

Juriga

Aydın

Hořák

et al. 2021

Journal of Hydrology and Hydromechanics

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“…It should also be taken into account that the dose of the applied organic residues affects its use as soil conditioner and fertilizer each (Govasmark et al, 2011) and the additional supply of OC that contains different numbers of polar and non-polar functional groups can negatively affect the wettability of the loam. Thus, also the local connectivity of flow pathways is reduced (Beck-Broichsitter et al, 2020b). Furthermore, the potential risk of soil acidification after organic residue amendment (Voelkner et al, 2015a) and the effect on wettability and dispersion (Voelkner et al, 2015b) of aggregated structured soils compared to the initially homogenized loam used in this study should be validated under field conditions.…”

Section: Basic Soil Characteristics After Application Of Organic Residuesmentioning

confidence: 92%

“…In the dry stage, the pore continuity indices presented in Table 4 show no significant differences; thus, the formation of shrinkage cracks seems to become more important for the connectivity of the pore system (Beck-Broichsitter et al, 2020b). However, compared to aggregated, structured soils in the field, the initially homogenized samples in this study tend to a higher shrinkage crack formation potential (Beck-Broichsitter et al, 2018) resulting in a comparatively higher air-filled porosity, more pronounced preferential flow paths and, therefore, overestimated air permeabilities.…”

Section: Effect Of Organic Residue Application On Water Retention Characteristics and Air Permeabilitymentioning

confidence: 93%

“…These organic residues can also be used as soil structure conditioner (Beck-Broichsitter et al, 2018) to improve the nutrient and water supply for plants (Duong et al, 2012), soil aeration (Reszkowska et al, 2011), and root growth (Möller and Müller, 2012). The impact of organic residues on soil chemical properties, for example, organic carbon (OC) and nutrient supply (Voelkner et al, 2015a) or wettability (Beck-Broichsitter et al, 2020b) is comprehensively analyzed, whereas a lack of information is still existing for physical properties including the plant available water capacity and air permeability. The process of soil aeration is important for the root growth and the crop production of arable soils (Zhai and Horn, 2018;Beck-Broichsitter et al, 2020a).…”

Section: Introductionmentioning

confidence: 99%

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Effect of organic residues on soil properties of loamy topsoil of haplic Luvisol in Northern Germany

Beck‐Broichsitter

Fleige

Horn

2020

Die Bodenkultur: Journal of Land Management, Food and Environment

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SummaryThe application of organic residues should ensure a sufficient air capacity (AC) and plant available water capacity (AWC) to improve the soil aeration and water supply for plant roots, whereas the air permeability (ka) primarily depends on the number of functional and, therefore, connected pores. The objective of the study was to investigate the effect of digestates derived from maize (Zea mays L.), sugar beet (Beta vulgaris L.), and wheat (Triticum aestivum L.) in ratios of 100%, 80%, and 20%, respectively; compost of shrub debris; and sewage sludge on AC, AWC, and ka values, including the pore continuity indices (c2, c3) of a loamy Ap horizon of a haplic Luvisol. The results indicate that AC values increase from 0.142 of up to 0.191 cm3 cm−3, but pore continuities and AWC values decrease from 0.143 down to 0.111 cm3 cm−3, except for wheat-containing digestate (20w80b), which shows an opposite trend. The application of organic residues can compensate low AC values but not the AWC values. The wheat-containing digestate should be preferred for improving the water-holding capacity and, therefore, the water supply for plant roots.

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“…The mass exchange between the macropore and soil matrix domains depends on the pore geometries (Leue et al, 2020), as well as volume and thickness of clay-organic coatings along macropore walls (Beck-Broichsitter et al, 2020b). The spatial distribution of organic carbon (OC) (Leue et al, 2018), particle size distribution (Yang et al, 2019), clay minerals (Beck-Broichsitter et al, 2020a), and wettability (Beck-Broichsitter et al, 2020c;Fér et al, 2016) are also of major importance.…”

Section: Introductionmentioning

confidence: 99%

Spatial particle size distribution at intact sample surfaces of a Dystric Cambisol under forest use

Beck‐Broichsitter

Gerriets

Neumann

et al. 2022

Journal of Hydrology and Hydromechanics

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The idea of the present study is to describe the spatially varying particle size distribution (PSD) along intact aggregate surfaces with the laser diffraction method (LDM) of four silty-loamy and OC enriched horizons of a Dystric Cambisol from the Uhlířská catchment (Czech Republic) with the laser diffraction method (LDM). Besides, the comparability of the LDM with the sieve and pipette method (SPM), the reproducibility, and the effect of pretreatment on the particle size distribution derived by LDM were analysed. The laser diffraction method enables rapid and continuous particle size distribution measurements with required sample amounts of 0.1–0.2 g for each measurement compared to 5–20 g for SPM. The LDM-derived PSD’s can be directly compared with the standardised SPM-derived PSD’s by using regression analysis with coefficients of determination (r2) between 0.83 and 0.93. Sample pretreatment following standardised proceedings indicates a better comparability between the particle size distributions of both methods. Besides, the highest coefficients of variation of up to 78.6 and therefore the lowest reproducibility were found for the unpretreated PSD of the AE and Bs horizon. Thus, limited evaluability and reproducibility of soil material enriched in organic carbon (OC), used in the current study, needs further analysis. For spatial analysis of PSD’s along intact surfaces of soil aggregates and profiles, spatial data interpolation by inverse distance weighting (IDW), kriging, and triangulated irregular networks (TIN) can be used for detailed measuring, mapping, and spatial extension of the sand, silt, and clay fractions at unsampled locations using a set of samples of known locations. The information offers the possibility of comparing and verifying data obtained by non-invasive mid-infrared spectroscopy and Vis–NIR spectroscopy by spatial extension for given soil aggregates and profiles.

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Simultaneous determination of wettability and shrinkage in an organic residue amended loamy topsoil

Cited by 5 publications

References 31 publications

The importance of initial application and reapplication of biochar in the context of soil structure improvement

The importance of initial application and reapplication of biochar in the context of soil structure improvement

Effect of organic residues on soil properties of loamy topsoil of haplic Luvisol in Northern Germany

Spatial particle size distribution at intact sample surfaces of a Dystric Cambisol under forest use

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