Fractionation of Soil Organic Matter into Labile and Stable Fractions
The present study aims to test and evaluate the efficiency of a new modified method of organic matter evaluation. It allows the assessment of the quality and quantity of the primary soil organic matter and the stable organic fractions separately. The new method was tested in six soil samples of diff...
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| Format: | Article |
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MDPI AG
2021-12-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/1/73 |
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| author | Marek Kopecký Ladislav Kolář Kristýna Perná Radka Váchalová Petr Mráz Petr Konvalina Yves Theoneste Murindangabo Mohammad Ghorbani Ladislav Menšík Miroslav Dumbrovský |
| author_facet | Marek Kopecký Ladislav Kolář Kristýna Perná Radka Váchalová Petr Mráz Petr Konvalina Yves Theoneste Murindangabo Mohammad Ghorbani Ladislav Menšík Miroslav Dumbrovský |
| author_sort | Marek Kopecký |
| collection | DOAJ |
| description | The present study aims to test and evaluate the efficiency of a new modified method of organic matter evaluation. It allows the assessment of the quality and quantity of the primary soil organic matter and the stable organic fractions separately. The new method was tested in six soil samples of different localities in the Czech Republic. This method is based on observing reaction kinetics during the oxidation of soil organic matter and measuring the cation-exchange capacity of stable organic fractions. The results were compared with classical methods, which rely on the isolation of humic substances, determination of the content of humic acids and fulvic acids and their ratio C<sub>HA</sub>:C<sub>FA</sub>, quotient E<sub>4/6</sub>, and fractionation of soil organic matter according to resistance to oxidation. It turned out that the results of the new modified method are more sensitive in comparison with the results obtained by classical procedures. The linear regression demonstrated the dependence between the amounts of soil organic matter determined by the classical method compared with the modified method. Moreover, the new modified method was found to be faster and not demanding on laboratory equipment. The new method has been improved to be easily repeatable, and some shortcomings of the previous method were eliminated. Based on our results and other recent studies, the modified method may be recommended for the practical evaluation of soil organic matter conditions. |
| first_indexed | 2024-03-10T03:08:05Z |
| format | Article |
| id | doaj.art-f21b5d26482d4b46bc183c10845939a9 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T03:08:05Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-f21b5d26482d4b46bc183c10845939a92023-11-23T12:37:48ZengMDPI AGAgronomy2073-43952021-12-011217310.3390/agronomy12010073Fractionation of Soil Organic Matter into Labile and Stable FractionsMarek Kopecký0Ladislav Kolář1Kristýna Perná2Radka Váchalová3Petr Mráz4Petr Konvalina5Yves Theoneste Murindangabo6Mohammad Ghorbani7Ladislav Menšík8Miroslav Dumbrovský9Faculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicFaculty of Agriculture, University of South Bohemia in Ceske Budejovice, 370 05 Ceske Budejovice, Czech RepublicDivision of Crop Management Systems, Crop Research Institute, 161 06 Prague, Czech RepublicFaculty of Civil Engineering, Brno University of Technology, 602 00 Brno, Czech RepublicThe present study aims to test and evaluate the efficiency of a new modified method of organic matter evaluation. It allows the assessment of the quality and quantity of the primary soil organic matter and the stable organic fractions separately. The new method was tested in six soil samples of different localities in the Czech Republic. This method is based on observing reaction kinetics during the oxidation of soil organic matter and measuring the cation-exchange capacity of stable organic fractions. The results were compared with classical methods, which rely on the isolation of humic substances, determination of the content of humic acids and fulvic acids and their ratio C<sub>HA</sub>:C<sub>FA</sub>, quotient E<sub>4/6</sub>, and fractionation of soil organic matter according to resistance to oxidation. It turned out that the results of the new modified method are more sensitive in comparison with the results obtained by classical procedures. The linear regression demonstrated the dependence between the amounts of soil organic matter determined by the classical method compared with the modified method. Moreover, the new modified method was found to be faster and not demanding on laboratory equipment. The new method has been improved to be easily repeatable, and some shortcomings of the previous method were eliminated. Based on our results and other recent studies, the modified method may be recommended for the practical evaluation of soil organic matter conditions.https://www.mdpi.com/2073-4395/12/1/73analytical methodsfractionationlabilitymodified methodsoil organic matterstability |
| spellingShingle | Marek Kopecký Ladislav Kolář Kristýna Perná Radka Váchalová Petr Mráz Petr Konvalina Yves Theoneste Murindangabo Mohammad Ghorbani Ladislav Menšík Miroslav Dumbrovský Fractionation of Soil Organic Matter into Labile and Stable Fractions Agronomy analytical methods fractionation lability modified method soil organic matter stability |
| title | Fractionation of Soil Organic Matter into Labile and Stable Fractions |
| title_full | Fractionation of Soil Organic Matter into Labile and Stable Fractions |
| title_fullStr | Fractionation of Soil Organic Matter into Labile and Stable Fractions |
| title_full_unstemmed | Fractionation of Soil Organic Matter into Labile and Stable Fractions |
| title_short | Fractionation of Soil Organic Matter into Labile and Stable Fractions |
| title_sort | fractionation of soil organic matter into labile and stable fractions |
| topic | analytical methods fractionation lability modified method soil organic matter stability |
| url | https://www.mdpi.com/2073-4395/12/1/73 |
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