The Biotransik i30 duo PS preparation is a biological agent intended for use in agriculture. It contains two active substances: Coniochaeta nivea SYM16932 and Bacillus simplex SYM00260, present at concentrations of 1*10⁶ IU/g and 1*10⁷ IU/g, respectively. The preparation is used to treat corn seeds. The recommended dosage is from 36 to 100 g per 100 kg of seeds, and it is applied once. The preparation is supplied in powder form, ensuring ease of application during seed treatment. Use of this preparation improves seed quality and enhances plant resistance to stress factors.