Fractional and group humus composition of the sod-podzolic soils under different land use
In a long-term stationary experiment in Perm region the change in the quality of humus in sod-podzolic soil under long-term (40 years) land-use (continuous bare fallow, permanent barley and winter rye, crop rotation with various percent of leguminous grasses - 0; 28.6 and 42.9 % lea ) was studied. I...
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| Format: | Article |
| Language: | Russian |
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Federal Agricultural Research Center of the North-East named N.V. Rudnitsky
2018-08-01
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| Series: | Аграрная наука Евро-Северо-Востока |
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| Online Access: | https://www.agronauka-sv.ru/jour/article/view/241 |
| _version_ | 1797290337839874048 |
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| author | N. E. Zavyalova D. S. Fomin I. S. Teterlev |
| author_facet | N. E. Zavyalova D. S. Fomin I. S. Teterlev |
| author_sort | N. E. Zavyalova |
| collection | DOAJ |
| description | In a long-term stationary experiment in Perm region the change in the quality of humus in sod-podzolic soil under long-term (40 years) land-use (continuous bare fallow, permanent barley and winter rye, crop rotation with various percent of leguminous grasses - 0; 28.6 and 42.9 % lea ) was studied. It was found that the long-term bare fallow causes a decrease in the total content of humic acids, mainly the most mobile fraction of HA-1, and the accumulation of fulvic acids (CHA : CFA = 0.55). When permanently cultivating crops in crop rotation, the content of humic acids increases due to the accumulation of fractions of HA-1 and HA-2 and the displacement of the type of humus formation from fulvate to humate-fulvate, with an increase in the ratio of CHA: CFA to 0.70-0.79. The use of manure makes it possible to fertilize the soil with fractions of humic acids, both easily mobile (HA-1) and calcium-bound (HA-2), thereby increasing the "maturity" of humus and resistance to mineralization. The introduction of or ganic and mineral fertilizers under monocultures and in crop rotations with a different proportion of legumes leads to the accumulation of calcium humates (HA-2) to 0.14-0.25 % of the soil mass. Transformation of arable soil into the fallow soil promotes the accumulation of valuable for agriculture fractions of humus - humic acids and reduction of fulvic acids, ŒA: CTA. = 0.96. |
| first_indexed | 2024-03-07T19:20:04Z |
| format | Article |
| id | doaj.art-6f5aa2d25c184d0d9610a6ae98db6900 |
| institution | Directory Open Access Journal |
| issn | 2072-9081 2500-1396 |
| language | Russian |
| last_indexed | 2024-03-07T19:20:04Z |
| publishDate | 2018-08-01 |
| publisher | Federal Agricultural Research Center of the North-East named N.V. Rudnitsky |
| record_format | Article |
| series | Аграрная наука Евро-Северо-Востока |
| spelling | doaj.art-6f5aa2d25c184d0d9610a6ae98db69002024-02-29T11:31:10ZrusFederal Agricultural Research Center of the North-East named N.V. RudnitskyАграрная наука Евро-Северо-Востока2072-90812500-13962018-08-01654828610.30766/2072-9081.2018.65.4.82-86240Fractional and group humus composition of the sod-podzolic soils under different land useN. E. Zavyalova0D. S. Fomin1I. S. Teterlev2Perm Scientific Centre of the Ural Branch of the Russian Academy of SciencesPerm Scientific Centre of the Ural Branch of the Russian Academy of SciencesPerm Scientific Centre of the Ural Branch of the Russian Academy of SciencesIn a long-term stationary experiment in Perm region the change in the quality of humus in sod-podzolic soil under long-term (40 years) land-use (continuous bare fallow, permanent barley and winter rye, crop rotation with various percent of leguminous grasses - 0; 28.6 and 42.9 % lea ) was studied. It was found that the long-term bare fallow causes a decrease in the total content of humic acids, mainly the most mobile fraction of HA-1, and the accumulation of fulvic acids (CHA : CFA = 0.55). When permanently cultivating crops in crop rotation, the content of humic acids increases due to the accumulation of fractions of HA-1 and HA-2 and the displacement of the type of humus formation from fulvate to humate-fulvate, with an increase in the ratio of CHA: CFA to 0.70-0.79. The use of manure makes it possible to fertilize the soil with fractions of humic acids, both easily mobile (HA-1) and calcium-bound (HA-2), thereby increasing the "maturity" of humus and resistance to mineralization. The introduction of or ganic and mineral fertilizers under monocultures and in crop rotations with a different proportion of legumes leads to the accumulation of calcium humates (HA-2) to 0.14-0.25 % of the soil mass. Transformation of arable soil into the fallow soil promotes the accumulation of valuable for agriculture fractions of humus - humic acids and reduction of fulvic acids, ŒA: CTA. = 0.96.https://www.agronauka-sv.ru/jour/article/view/241crop rotationcontinuous bare fallowpermanent cropsleafertilizers |
| spellingShingle | N. E. Zavyalova D. S. Fomin I. S. Teterlev Fractional and group humus composition of the sod-podzolic soils under different land use Аграрная наука Евро-Северо-Востока crop rotation continuous bare fallow permanent crops lea fertilizers |
| title | Fractional and group humus composition of the sod-podzolic soils under different land use |
| title_full | Fractional and group humus composition of the sod-podzolic soils under different land use |
| title_fullStr | Fractional and group humus composition of the sod-podzolic soils under different land use |
| title_full_unstemmed | Fractional and group humus composition of the sod-podzolic soils under different land use |
| title_short | Fractional and group humus composition of the sod-podzolic soils under different land use |
| title_sort | fractional and group humus composition of the sod podzolic soils under different land use |
| topic | crop rotation continuous bare fallow permanent crops lea fertilizers |
| url | https://www.agronauka-sv.ru/jour/article/view/241 |
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