00629naa#a2200205#i#450# EN\\bibl\112798 20260118022815.7 2311-1402 20170325b2017####ek#y0engy0150####ca RUS RU ASSESSMENT OF ENVIRONMENTAL STATUS OF SOIL STEPPE AGROECOSYSTEMS ON INDICATORS OF BIOLOGICAL ACTIVITY Journal article Nizhnevartovsk Nizhnevartovsk State University 2017 5 с. Journal article local . 579.6:631.4 RUS Hasanova R F Suyundukov Yа T Semenovа I N vestnik.nvsu.ru