00580naa#a2200205#i#450# EN\\bibl\77544 20260221155311.6 1819-4036 20130425b2013####ek#y0engy0150####ca RUS RU THE ECOLOGICAL FERTILITY OF MONGOLIA CHESTNUT SOILS Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2013 2 с. Journal article local . 631.45(517.3) RUS Davaabaatar Z Bayarsaykhan G Tsuglenok N V sej.kgau.ru