TY JOUR TI LED MODULES IN PLANT GROWING OF PROTECTED SOIL KW constructions of protected ground KW LED mod-ule KW radiation spectrum KW power of radiation sources KW spectro-gram KW greenhouse irradiator KW efficiency JO Bulletin of KSAU AU Trepuz, S.V. AU Dolgikh, P.P. AU Sanginov, M.K. AU Khusenov, G.N. PY 2018 IS PB Krasnoyarsk State Agrarian University