%0 Journal Article %T ULTRASONIC WAVE PARAMETERS FOR PRE-SOWING TREATMENT OF GRAIN %A Volhonov, M.S. %A Mamaeva, I.A. %A Belyakov, M.M. %K justification, parameter, ultrasound, pre-sowing treatment, Fresnel zone, seeds, water, experiment %J Vestnik of Kazan State Agrarian University %D 2025 %N 20 %P 7 %I Kazan state agrarian University