00624naa#a2200169#i#450# EN\\bibl\119113 20260406055849.1 1819-4036 20211029b2021####ek#y0engy0150####ca RU IDEAS OF PROFESSOR V.V. CHUPROVA IN THE STUDY OF ORGANIC SUBSTANCE OF AGROGENICALLY CONVERSED SOILS OF SIBERIA Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2021 6 с. Journal article local Общие вопросы сельского хозяйства. 631 Kurachenko Natal'ya Leonidovna vestnik.kgau.ru