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The influence of the agrochemicals "Soil Green City", created on the basis of sewage sludge sewage treatment plants of housing and communal services, on the growth and development of flower and decorative culture: marigolds (Tagйtes pбtula). The positive effect of agrochemicals on the growth and development of the test flower and decorative culture has been established. It is shown that the use of this agrochemicals in doses of 2–4 kg/m2 did not lead to an excess of the content in the soil of sanitary and hygienic standards for mobile forms of heavy metals.