The influence of oil pollution and carriers of biological product on the agrophysical indicators of sod-podzolic soils
The article presents the results of the influence of various aerating agents, carriers of new generation oil-oxidizing biological product on the agrophysical parameters of sod-podzolic soil highly contaminated with oil (up to 10%), and on the rate of oil decomposition in it. The studies were carried...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
Federal Agricultural Research Center of the North-East named N.V. Rudnitsky
2020-03-01
|
| Series: | Аграрная наука Евро-Северо-Востока |
| Subjects: | |
| Online Access: | https://www.agronauka-sv.ru/jour/article/view/478 |
| Summary: | The article presents the results of the influence of various aerating agents, carriers of new generation oil-oxidizing biological product on the agrophysical parameters of sod-podzolic soil highly contaminated with oil (up to 10%), and on the rate of oil decomposition in it. The studies were carried out in a microfield experiment in the conditions of the Udmurt Republic. It was established that during the growing season of 2019 all studied carriers of the biological product had positive effect on these indicators, however, the parameters of the changes were determined by their types. Thus, the application of sawdust, barley straw and flax shive into the soil provided an increase in the structural coefficient by 0.83-0.99 units or 35-43 %. All studied carriers of the biological product statistically significantly reduced the density of the contaminated soil, the greatest effect on this indicator was exerted by flax shive (by 0.42 g/cm3 or 32 %) and sawdust (by 0.34 g/cm3 or by 26 %). The application of vermiculite increased the productive moisture content in the contaminated soil most significantly - by 115 m3 /ha or by 50.7 %. The improvement of agrophysical properties of oil-contaminated soil by carriers of the biological product increased drastically the effectiveness of the preparation for oil decomposition. The greatest effect on this indicator (by 9.9-10.9 mg/kg or 40.2- 44.3 %) was exerted by the biological product in combination with flax shive, lignin and straw. The application of organomineral fertilizers into the contaminated soil also improved the agrophysical properties of oil-contaminated soils significantly and reduced the residual oil content in it by 13.0 mg/kg or 52.8 %. |
|---|---|
| ISSN: | 2072-9081 2500-1396 |