00677naa#a2200181#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\bibl\29059 20240514034715.2 1997-4868 20190425b2019####ek#y0engy0150####ca RU CHANGE OF AGROCHEMICAL INDICATORS THE CHERNOZEM ORDINARY UNDER THE INFLUENCE OF SIDERALNY CULTURES Journal article Ekaterinburg Ural State Agrarian University 2019 7 с. Journal article local Общие вопросы сельского хозяйства. 68.01 grnti Kravcova E. V. Rudakova L. V. usau.editorum.ru