The testing laboratory of the branch of the Federal State Budgetary Institution "Rosselkhozcenter" in the Krasnoyarsk Territory annually assesses the safety of farmland soils at the request of farms. The main requirements for the quality and safety of soils are regulated by SanPin 1.2.3685-21 "Hygienic standards and requirements for ensuring the safety and (or) harmlessness of environmental factors for humans" dated January 28.01.2021, 3,4. The sanitary control of soils of agricultural lands in the Krasnoyarsk Territory includes the use of a standard list of research indicators: gross and mobile forms of heavy metals (lead, cadmium, zinc, copper, nickel, manganese, arsenic, mercury), XNUMX-benz (a) pyrene, pH and the content of nitrate nitrogen (nitrates), as well as checking the soil for the residual amount of pesticides in case of their application.
For 8 months of 2022, the testing laboratory received 22 samples from fields of 4300 hectares. According to the results of the studies, no deviations in the declared safety indicators were identified (table 1).
Table 1. Indicators of agricultural soil safety
p / p | Index | Limits of received values | Norm according to SanPin 1.2.3685-21 |
1 | Cadmium | 0,13-0,40 mg/kg | Not more than 2,0 mg/kg |
2 | Lead | 4,8-12 mg/kg | Not more than 130 mg/kg |
3 | Copper | 14-22 mg/kg | Not more than 132 mg/kg |
4 | Zinc | 17-53 mg/kg | Not more than 220 mg/kg |
5 | arsenic | 2,0-3,2 mg/kg | Not more than 10 mg/kg |
6 | Mercury | 0,14-0,46 mg/kg | Not more than 2,1 mg/kg |
8 | pH KCI | 5,8-6,1 units pH soils close to neutral | close to neutral, neutral pHKCI > 5.5 sour pH KCI < 5,5 |
9 | Benzo (a) pyrene | Less than 0,005 | Not more than 0,02 |
10 | Nitrate nitrogen (nitrates) | 2,8-85,1 mg/kg | Not more than 130,0 |
Soil samples are submitted for analysis both in the spring before sowing and in the fall after harvesting. Soil condition control is necessary to comply with the requirements of the legislation of the Russian Federation, as well as to monitor changes in the condition of agricultural land. land. In case of detection of negative changes occurring in the soil cover of lands, according to the results of laboratory studies, agricultural producers will be able to take a set of necessary measures in time to protect the fertile layer of land and receive a high-quality and safe crop in the future.