00481naa#a2200169#i#450# EN\\bibl\102230 20250829194053.5 2588-0209 20220225b2022####ek#y0engy0150####ca RU COMPARATIVE CHARACTERISTICS OF THE EFFECT OF GUMIC LAND ON SUNFLOWER PLANTS IN VARIOUS USE CASES Journal article Moscow Electronic science 2022 0 с. Journal article local mshj.ru