FIELD: ecology.;SUBSTANCE: assessment of biological activity and toxicity of soil is provided on the basis of cress Lepidium sativum L. wealth, grown in soil samples and under test-control on vermiculite with a Knop nutrient solution. The assessment is carried out according to the development indices of 10-12-day plants, while the plants height and weight is compared, as well as the redox activity of the plant extract, which increases with the toxicity of the root medium. Where the decline of the cress indices or the increased redox activity of the plant extract by 10-30% shows a satisfactory soil condition, reduction by 30-50% - poor condition, at the level below 50% - environmentally hazardous condition.;EFFECT: simplified assessment method, reduced test time and ensured accuracy of the results for statistical data processing for assessment of the quality of soil in urban and industrial areas of various technogenic soil, functioning as soils in urban and industrial areas.;16 dwg, 1 ex
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机译：领域：生态学;物质：以水芹小菜蛾为基础，对土壤的生物活性和毒性进行评估，该菜菜在土壤样品中生长，并在K石上用Knop营养液进行测试控制。根据10-12天植物的发育指数进行评估，同时比较植物的身高和体重以及植物提取物的氧化还原活性，该活性随根培养基的毒性而增加。当水芹指数下降或植物提取物的氧化还原活性提高10-30％表示土壤条件令人满意时，降低30-50％-恶劣条件，低于50％的水平-对环境有害。 ：简化评估方法，减少测试时间，并确保统计数据处理结果的准确性，以评估各种技术土壤在城市和工业区中用作城市和工业区土壤的质量。; 16 dwg，1 ex
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