Selectivity of Ion Exchange as a Sign of Soil Quality

Váchalová, Radka; Borová-Batt, J.; Kolář, Ladislav; Váchal, Jan

doi:10.1080/00103624.2014.941856

Cited by 6 publications

(7 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…IEC values ranged from 52 mmol + 100 g -1 in layers IV and III, to 60 mmol + 100 g -1 in the older layers (II and I), but with no statistical differences. The values observed were greater than in a previous study utilising peat (28.8 mmol + 100 g -1 ), and garden compost (35.2 mmol + 100 g -1 ), but lower than a synthetic cation exchanger (90.5 mmol + 100 g -1 ) as determined by Váchalová et al (2014). Mature vermicompost should have significant sorption and ion-exchange properties, and release nutrients gradually to optimise the composition of the soil solution.…”

Section: Resultscontrasting

confidence: 63%

“…The element concentrations were determined using inductively coupled plasma optical emission spectrometry (ICP-OES, VARIAN VistaPro, Varian, Australia) with axial plasma configuration. The ion-exchange capacity (IEC) was determined conductometrically as described by Váchalová et al (2014). Samples for the phospholipid fatty acid (PLFA) analysis were extracted in triplicate using a mixture of chloroform, methanol, and phosphate buffer (1:2:0.8; v/v/v) according to Bligh and Dyer (1959).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Dynamics of a vertical-flow windrow vermicomposting system

et al. 2017

View full text Add to dashboard Cite

Large-scale vermicomposting under outdoor conditions may differ from small-scale procedures in the laboratory. The present study evaluated changes in selected properties of a large-scale vertical-flow windrow vermicomposting system with continuous feeding with household biowaste. The windrow profile was divided into five layers of differing thickness and age after more than 12 months of vermicomposting. The top layer (0-30 cm, age <3 months) was characterised by partially decomposed organic matter with a high pH value and an elevated carbon/nitrogen (C/N) ratio. The earthworm biomass was 15 g kg with a population density of 125 earthworms per kilogram predominantly found in clusters. The greatest amount of fungi (3.5 µg g dw) and bacteria (62 µg g dw) (expressed as phospholipid fatty acid analysis) was found in this layer. Thus, the top layer could be used for an additional cycle of windrow vermicomposting and for the preparation of aqueous extracts to protect plants against diseases. The lower layers (graduated by 30 cm and by 3 months of age) were mature as reflected by the low content of ammonia nitrogen, ratio of ammonia to nitrate nitrogen and dissolved organic carbon, and high ion-exchange capacity and its ratio to carbon. These layers were characterised by elevated values for electrical conductivity, total content of nutrients, available magnesium content, and a relatively large bacterial/fungal ratio. On the basis of the observed properties, the bottom layers were predetermined as effective fertilisers.

show abstract

Section: Resultscontrasting

confidence: 63%

Section: Methodsmentioning

confidence: 99%

Dynamics of a vertical-flow windrow vermicomposting system

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The active pH value and the EC were conducted on samples mixed with demineralised water (1:5 w/v wet basis) using a WTW pH 340 i and WTW cond 730, respectively, according to BSI EN 15933 (2012). The ion-exchange capacity (IEC) was evaluated conductometrically according to Váchalová et al (2014). For the determination of the total carbon (C tot ) and nitrogen (N tot ), a CHNS Vario MACRO cube (Elementar Analysensysteme GmbH, Germany) analyser was applied.…”

Section: Methodsmentioning

confidence: 99%

Change of the parameters of layers in a large-scale grape marc vermicomposting system with continuous feeding

Částková

Hanč

2019

Waste Manag Res

View full text Add to dashboard Cite

The main by-product of wine-making is grape marc. With proper treatment, grape marc may return to the vineyard as a fertiliser. This study deals with the vermicomposting of grape marc in a continuous feeding system in outdoor conditions for more than 12 months. The N-NH4+, dissolved organic carbon (DOC), and N-NH4+/N-NO3- contents were greater in the top layers. The pH value was about 8 in all the layers. The electrical conductivity was the greatest in the bottom layer. The ion-exchange capacity did not modify significantly during vermicomposting. The microbial biomass was the greatest in the upper layer, as well as the number and the biomass of the earthworms. The process of vermicomposting seems to be an ideal way of processing residues from the winemaking industry. This vermicompost has very good properties for use as a fertiliser, and for returning the nutrients and organic matter to the soil, for example, in a vineyard.

show abstract

“…The high change in C LSOM would be attributed to the fact that this fraction of soil organic matter is more active, mineral-free, and made up of highly oxidizable, partially decomposed plant and animal residues, with a high turnover [48,60]. The more the soil is disturbed, the more the labile fraction oxidizes [5,103]. Results of this experiment showed that although the TOC in the soil was affected by management practices, C LSOM was the most sensitive and was affected in the short term, as found in other studies [45,54].…”

Section: Carbon Pool (Toc C Lsom )mentioning

confidence: 99%

Enhancing Soil Organic Matter Transformation through Sustainable Farming Practices: Evaluating Labile Soil Organic Matter Fraction Dynamics and Identifying Potential Early Indicators

Murindangabo,

Kopecký,

Perná

et al. 2023

Agriculture

View full text Add to dashboard Cite

The growing global population and increasing demand for agricultural products have exerted significant pressure on agricultural systems. As a result, soil organic matter depletion and degradation have become prevalent issues, including in regions such as South Bohemia, Czech Republic, where conventional farming practices are predominant. Soil organic matter (SOM) plays a critical role in soil health, crop productivity, and the sustainability of agricultural systems, with changes occurring in both the total and labile fractions of the organic matter pools. However, changes in the total soil organic matter carbon pool (TOC) resulting from agricultural practices occur gradually and may become evident only after several years, posing challenges for timely management adjustments. Therefore, the identification of early indicators of SOM dynamics is crucial for implementing prompt corrective actions. The aim of this study was to evaluate the effects of sustainable management practices, such as cultivated crops (Pisum sativum and Lupinus albus), selected entomopathogenic and myco parasitic fungi (MEHA) (Trichoderma virens and Metarhizium brunneum), and lactic acid bacteria (LAB) on the labile fraction of the SOM pool (CLSOM) and identify potential early indicators. Our findings demonstrated that the type of crop and applied microorganisms (treatments) significantly affected the CLSOM in peas, and the crop growth stages affected the TOC in both pea and lupin. Growth stages also showed an impact on the CLSOM in lupin. Moreover, in both crops, the change in CLSOM correlated with changes in the SOM oxidation rate constant (k), carbon lability index (LI), carbon management index (CMI), and carbon enrichment ratio (ER). Conversely, changes in the TOC did not exhibit significant correlations, except for LI and CMI, which showed a positive correlation with the TOC in peas (p < 0.05). Furthermore, the separate application of MEHA and LAB on seeds or leaves resulted in increased SOM carbon pools compared with the combined application. The application of these beneficial microorganisms in pea and lupin crops showed potential in maintaining or increasing CLSOM, which can be assessed early through indicators such as k, LI, CMI, and ER. Contributing to the development of sustainable soil management strategies, future research should further investigate different crops and microorganisms—and the mechanisms underlying their observed relationships—and explore additional early indicators to refine and optimize sustainable agricultural practices.

show abstract

Selectivity of Ion Exchange as a Sign of Soil Quality

Cited by 6 publications

References 5 publications

Dynamics of a vertical-flow windrow vermicomposting system

Dynamics of a vertical-flow windrow vermicomposting system

Change of the parameters of layers in a large-scale grape marc vermicomposting system with continuous feeding

Enhancing Soil Organic Matter Transformation through Sustainable Farming Practices: Evaluating Labile Soil Organic Matter Fraction Dynamics and Identifying Potential Early Indicators

Contact Info

Product

Resources

About