IndigoS-10 is a bio-preparation intended for use in agriculture. The preparation contains the active ingredient Streptomyces kathirae SYM00257 with a total bacterial titer not less than 1*106 IU/ml. It is used for treating corn seeds prior to sowing. The preparation is applied once at a rate of 2 liters per ton of seeds. It is a microencapsulated emulsion, ensuring ease and efficiency of application. Using this bio-preparation promotes improved growth and development of the corn crop.