TY CONF TI DETERMINING THE TRAJECTORY OF PARTICLE MOVEMENT IN THE SEED TUBE OF THE OPENER OF A GRAIN SEEDER KW seeder; vomer; vas deferens; particle trajectory; grain mass JO XIII All-Russian scientific-practical conference of young scientists «Achievements and prospects of development of the Russian agriculture", dedicated to the memory of R.G. Gareev AU Damanskiy, R.. AU Kem, A.. AU Mihal'cov, E.. AU Shmidt, A.. PY 2023 PB TRIA FRC Kazan Scientific Center of RAS