METHOD OF DETERMINING PHYTOTOXICITY OF SOILS USING BIOINDICATOR Russian patent published in 2015 - IPC G01N33/24 A01G23/00 A01G7/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, forestry and ecology. The method comprises determining the branching index as the ratio of the number of individuals with deviations to the number of all individuals in the sample of moss. At that the bioindicator is used as Hylocomium splendens, the branching index of Hylocomium splendens is determined by the formula: $$B=\frac{B_n}{B_N}100\%,$$ where B is branching index of Hylocomium splendens (in%), Bn is the number of individuals in the sample, having deviations from the normal branching in Hylocomium splendens, B_N is the number of individuals examined in the sample, if B is from 0 to 10% the soil condition is normal, not phytotoxic, if B is greater than 10% the soil condition is disturbed - soil is phytotoxic.

EFFECT: method enables to determine the degree of soil deviation from the normal in the presence of stress factors.

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