Petrichenko, Ye.A., and S.N. Geruk. 2020. “Field Tests of the Fertilizer-Sowing Unit for Simultaneous Sowing With the Introduction of the Starting and Basic Fertilizer Rates”. Bulletin of Sumy National Agrarian University. The Series: Mechanization and Automation of Production Processes, no. 1 (39) (November), 22-26. https://www.snaubulletin.com.ua/index.php/mapp/article/view/390.