Photosynthetic activity and productivity of potato plants when using foliar dressings with complex micronutrients and humateOlga Savina, Svetlana Afinogenova, Valentina Krishtafovich and Bakhytkul BaikhozhaevaE3S Web Conf., 285 (2021) 02028DOI: https://doi.org/10.1051/e3sconf/202128502028