EA021690B1 EA201200680A EA201200680A EA021690B1 EA 021690 B1 EA021690 B1 EA 021690B1 EA 201200680 A EA201200680 A EA 201200680A EA 201200680 A EA201200680 A EA 201200680A EA 021690 B1 EA021690 B1 EA 021690B1 Authority EA Eurasian Patent Office Prior art keywords soil oil pollution arable land …