The effect of organic matter on aggregation under different soil management practices in a vineyard in an extremely humid year

Šimanský, Vladimí­r; Bajčan, Daniel; Ducsay, Ladislav

doi:10.1016/j.catena.2012.10.011

Cited by 43 publications

(26 citation statements)

References 22 publications

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“…In analyzed soil materials, the concentration of EE-GRSP and the content of DOC were closely correlated both in Rs and nRs (Table 4). The obtained results confirm the observations of other researchers that soil organic carbon is related to glomalin concentration (Nichols and Wright 2005;Schindler et al 2007;Šimanský et al 2013). Arbuscular mycorrhizal fungi produce glomalin-related protein, even though this activity seems to be controlled by soil texture (Wright et al 2007).…”

Section: Discussionsupporting

confidence: 82%

“…Soils rich in swelling clays have more total glomalin than soils containing low-activity clays since hydrophobic, recalcitrant nature of glomalin may protect other aggregating agents (Wright and Upadhyaya 1996). The researches revealed that glomalin concentration in soil is highly correlated with the presence of water-stable aggregates as well as with the content of soil carbon (Borie et al 2006;Wright et al 2007;Kohler et al 2010;Tobiašová 2011;Šimanský et al 2013).…”

Section: Introductionmentioning

confidence: 84%

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Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Kobierski

Kondratowicz-Maciejewska

Banach-Szott

et al. 2018

J Soils Sediments

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Purpose The paper describes rhizospheric (Rs) and non-rhizospheric (nRs) soil to demonstrate the zone of the plant root impact on physical and chemical properties of the soil. The effects of the process accompanying the transformations of organic matter into humic substances in the rhizosphere of Bcommon dandelion^Taraxacum officinale have been determined, and the properties of humic acids (HAs) were described. The importance of iron and clay minerals for the formation of a stable and water-resistant soil structure has been emphasized. Materials and methods The laboratory analysis involved determination of basic physical and chemical soil properties: texture, pH, cation exchange capacity (CEC), electrical conductivity, and content of total organic carbon (TOC) and dissolved organic carbon (DOC) and quality of humic substances: optical properties of HAs and its separation into hydrophilic (HIL) and hydrophobic (HOB) fractions, speciation of iron, glomalin operationally described as an easily extractable glomalin-related soil protein (EE-GRSP), and soil aggregate stability (SAS) of six size classes of soil aggregates. Results and discussion The Rs was reported with a higher TOC and DOC content (measured in the CaCl 2 extracts), however not significantly. The HAs isolated from Rs revealed a significantly higher content of humic substances at its initial decomposition stage, as compared with nRs. A significantly higher concentration of EE-GRSP was noted in the aggregates of the rhizospheric zone (mean 1.14 g kg −1 ) than in the aggregates collected from root-free soil (mean 0.94 g kg −1 ). There was noted the highest mean share of 1-3 mm soil aggregates in Rs as well as in nRs, respectively 44.4 and 38.3%. The soil material both in Rs and in nRs contained high amounts of exchangeable Ca 2+ , and smectite is the predominant clay mineral. It was favorable for the accumulation of organic carbon and for the formation of good soil physical condition (tilth). Higher but insignificant SAS values were observed for Rs (mean SAS = 95.6%) than for nRs (mean SAS = 93.9%). Conclusions The studies confirm the role of common dandelion roots in the process of organic carbon accumulation in rhizospheric zone and a favorable effect on the mechanism of the formation of water-resistant aggregates. Higher values of SAS for the Rs were affected by the content of TOC, DOC, exchangeable Ca 2+ and the concentration of EE-GRSP, and, less considerably, the content of Fe and clay minerals.

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Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 84%

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Kobierski

Kondratowicz-Maciejewska

Banach-Szott

et al. 2018

J Soils Sediments

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“…The beneficial changes are especially related to the capacity of the soil to store and supply water to the plants, besides promoting a higher structural quality of the soil, mainly due to the input of organic matter (Chen et al, 2017). On the other hand, long-term-conventional management system is such an intensive land use of soil that decreases organic matter and disturb soil structure, increasing soil density and reducing water infiltration (Bertol et al, 2015), besides some other undesirable effects on physical, chemical and biological attributes of the soil (Araujo et al, 2012;Šimanský et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Paes¹,

Dias²,

Fernandes³

et al. 2018

JAS

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The objective of this study was to evaluate the soil organic carbon fractions and the carbon management index (CMI) in a cohesive oxisol under different uses. Conventional cassava planting (CC), pasture (PP), and 7-and 12-year agroforestry systems (AF7 and AF12, respectively), were tested against secondary forest (SF). Soil samples of these areas were physically fractionated in order to determine total organic matter (TOC) as well as the labile-(LOC) and non-labile (NOC) fractions of the soil organic matter, as well as carbon management index (CMI). Total organic C ranged from 14.17 to 27.20 g kg -1 of soil, showing no differences in the surface layer among the land uses as compared to the secondary forest. No differences were found in the surface layer for LOC as well, except for the AF12 where LOC was higher. This condition accounts for higher microbial activity and nutrient cycling in the soil. This system also showed higher CMI values, pointing to a better response of soil quality under long-term agroforestry system. This system improved soil organic matter, regardless of the depth. On the other hand, conventional cassava and planted pasture systems reduced carbon in soil. In conclusion, the agroforestry system is the best choice of farmers, when they seek for better soil quality.

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“…In order to measure this susceptibility, we can make use of assessment of soil aggregate stability (Hillel 1980). Soil aggregate stability depends on soil type and sort, on the content of organic matter (Tisdall & Oades 1982;Haynes & Swift 1990;Šimanský et al 2013), on the biological activity of the soil (Oades 2005), fertilization (Annabi et al 2007), and also on the form of soil disturbance, frequency of passage of machinery (Safadoust et al 2006), vegetation cover (Gajici et al 2010;Peregrina et al 2010), and soil mass redistribution in the steep parts of slopes (Zádorová et al 2011). In the soil profile, there is also a varying dependence on the existence of various forms of CaCO 3 , on the presence of ferric oxide, clay, and pH KCl (Kodešová et al 2009).…”

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confidence: 99%

Water stability of soil aggregates in different systems of tillage

Bartlová¹,

Badalíková²,

Pospíšilová³

et al. 2015

Soil Water Res.

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Bartlová J., Badalíková B., Pospíšilová L., Pokorný E., Šarapatka B. (2015): Water stability of soil aggregates in different systems of tillage. Soil & Water Res., 10: 147-154.The influence of various agrotechnical measures on macrostructural changes in topsoil and subsoil was studied in the course of a four-year experiment. Macrostructure was evaluated according to the ability of soil aggregate to resist degradation. Three variants of soil tillage were established: ploughing to a depth of 0.22 m, reduced tillage (subsoiling to 0.35-0.40 m, and shallow disking of soil to a depth of 0.15 m). For observation, three locations were chosen in various production areas of the Czech Republic with differing soil and climatic conditions. In these locations crops were grown under the same crop rotation: rapeseed (Brassica napus L.), wheat (Triticum aestivum L.), maize (Zea mays), wheat (Triticum aestivum L.), and barley (Hordeum vulgare). After four years of different tillage, a change in the water stability of soil aggregates (WSA) was evident. It was found out that reduced tillage of soil positively influenced both the WSA and the yield of the crops grown. A relationship of positive dependence between WSA, the content of humus substances, and cation exchange capacity of soil was also found. According to the obtained results, for agricultural practice a classification scale of structural quality was proposed on the basis of statistics of one variable (average, its mean error and distribution normality).

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The effect of organic matter on aggregation under different soil management practices in a vineyard in an extremely humid year

Cited by 43 publications

References 22 publications

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Humic substances and aggregate stability in rhizospheric and non-rhizospheric soil

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Water stability of soil aggregates in different systems of tillage

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