Bulletin Samara State Agricultural AcademyBulletin Samara State Agricultural Academy1997-32252782-4225Samara State Agrarian University23858RAZRABOTKA VYSEVAYuShchEGO USTROYSTVA SEYaLKI DLYa TRUDNOSYPUChIKh POSEVNYKh MATERIALOVKryuchinN P-SafonovS V-150920063757611032020Copyright © 2006, Kryuchin N.P., Safonov S.V.2006