Optimization of the design parameters of the sprayer rotary device for the chemical treatment of the near-stem zone of fruit treesValery Tsybulevsky, Boris Tarasenko, Irina Troyanovskaya, Sergey Voinash, Ramil Zagidullin, Ilgam Kiyamov and Linar SabitovE3S Web of Conf., 390 (2023) 06002DOI: https://doi.org/10.1051/e3sconf/202339006002