00681naa#a2200181#i#450# EN\\bibl\10170 20240502051500.4 2311-8873 20151226b2015####ek#y0engy0150####ca RUS RU ENVIRONMENTAL CONDITION AND STABILITY BIOLOGICAL PRODUCTIVITY OF AGRO ECOSYSTEMS WITH SUNFLOWER CROPS IN CONDITIONS OF HIGH ANTHROPOGENIC LOAD Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 3 с. Journal article local Vysotskaya E. Krekoten M. vntv.editorum.ru