Influence of growth regulators on yield, quality and preservation of potato stubs in the mountain zone of the Kabardino-Balkaria RepublicKhusen Nazranov, Elena Didanova, Zalim-Geri Shibzukhov, Maya Orzalieva and Beslan NazranovE3S Web of Conf., 222 (2020) 02002DOI: https://doi.org/10.1051/e3sconf/202022202002