Bulletin Samara State Agricultural AcademyBulletin Samara State Agricultural Academy1997-32252782-4225Samara State Agrarian University23851VLIYaNIE MINERAL'NYKh UDOBRENIY I SPOSOBOV OBRABOTKI POChVY NA UROZhAY YaROVOY PShENITsYButyaykinV V-151220064959511032020Copyright © 2006, Butyaykin V.V.2006