Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity
Brown forest acidic soils of the humid subtropical zone of Russia, on which tea is mainly cultivated, are largely exposed to agrogenic effects, which reduce their bio-productivity. An early diagnosis of these processes is possible by evaluating the biological activity of soils, in particular by the...
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Maykop State Technological University
2019-09-01
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| Series: | Новые технологии |
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| Online Access: | https://newtechology.mkgtu.ru/jour/article/view/325 |
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| author | L. S. Malyukova D. V. Strukova |
| author_facet | L. S. Malyukova D. V. Strukova |
| author_sort | L. S. Malyukova |
| collection | DOAJ |
| description | Brown forest acidic soils of the humid subtropical zone of Russia, on which tea is mainly cultivated, are largely exposed to agrogenic effects, which reduce their bio-productivity. An early diagnosis of these processes is possible by evaluating the biological activity of soils, in particular by the parameters of soil enzymes that regulate the main cycles of biogenic elements. Under the influence of various types and doses of mineral fertilizers relative to the background soils, they have been graduated and a scale for rating the agrogenic load has been developed on the basis of the established actual level of variation in the catalase activity (0.4-13.2 ml of O2/1 g of soil in 1 min), urease (0.1-21.8 mg of NH3/10 g in 24 hours), invertase (21-190 mg of glucose/1 g of soil in 24 hours) and phosphatase (0.01-1.7 mg of P2O5/ 100 g of soil in 1 hour).Four levels of exposure have been distinguished – permissible, maximum permissible, critical, unacceptable levels. 20 % relative to the soils of the background territory for all studied soil enzymes have been taken for a critically significant value for normalizing agrogenic load for brown forest acidic soils, which determines an unacceptable level. Decrease to 30-70 % of the enzymatic activity of soils in the background territory (depending on the type of enzyme) have been considered maximum permissible and permissible levels. |
| format | Article |
| id | doaj-art-e59ad4a5e41040d88025e25d5cf01008 |
| institution | Kabale University |
| issn | 2072-0920 2713-0029 |
| language | Russian |
| publishDate | 2019-09-01 |
| publisher | Maykop State Technological University |
| record_format | Article |
| series | Новые технологии |
| spelling | doaj-art-e59ad4a5e41040d88025e25d5cf010082025-08-20T03:58:55ZrusMaykop State Technological UniversityНовые технологии2072-09202713-00292019-09-010316417210.24411/2072-0920-2019-10315323Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activityL. S. Malyukova0D. V. Strukova1FSBSI “All-Russian Research Institute of Floriculture and Subtropical Crops”FSBSI “All-Russian Research Institute of Floriculture and Subtropical Crops”Brown forest acidic soils of the humid subtropical zone of Russia, on which tea is mainly cultivated, are largely exposed to agrogenic effects, which reduce their bio-productivity. An early diagnosis of these processes is possible by evaluating the biological activity of soils, in particular by the parameters of soil enzymes that regulate the main cycles of biogenic elements. Under the influence of various types and doses of mineral fertilizers relative to the background soils, they have been graduated and a scale for rating the agrogenic load has been developed on the basis of the established actual level of variation in the catalase activity (0.4-13.2 ml of O2/1 g of soil in 1 min), urease (0.1-21.8 mg of NH3/10 g in 24 hours), invertase (21-190 mg of glucose/1 g of soil in 24 hours) and phosphatase (0.01-1.7 mg of P2O5/ 100 g of soil in 1 hour).Four levels of exposure have been distinguished – permissible, maximum permissible, critical, unacceptable levels. 20 % relative to the soils of the background territory for all studied soil enzymes have been taken for a critically significant value for normalizing agrogenic load for brown forest acidic soils, which determines an unacceptable level. Decrease to 30-70 % of the enzymatic activity of soils in the background territory (depending on the type of enzyme) have been considered maximum permissible and permissible levels.https://newtechology.mkgtu.ru/jour/article/view/325brown forest acidic soilsteaagrogenic loadsmineral fertilizerspesticidesenzymatic activityureasecatalasebiomonitoringrating scalethe black sea coast of russia |
| spellingShingle | L. S. Malyukova D. V. Strukova Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity Новые технологии brown forest acidic soils tea agrogenic loads mineral fertilizers pesticides enzymatic activity urease catalase biomonitoring rating scale the black sea coast of russia |
| title | Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| title_full | Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| title_fullStr | Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| title_full_unstemmed | Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| title_short | Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| title_sort | assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity |
| topic | brown forest acidic soils tea agrogenic loads mineral fertilizers pesticides enzymatic activity urease catalase biomonitoring rating scale the black sea coast of russia |
| url | https://newtechology.mkgtu.ru/jour/article/view/325 |
| work_keys_str_mv | AT lsmalyukova assessmentofagrogenicimpactonteaplantationsoilsbyanalysisoftheirenzymaticactivity AT dvstrukova assessmentofagrogenicimpactonteaplantationsoilsbyanalysisoftheirenzymaticactivity |