TY JOUR TI QUALITY ASSESSMENT OF SOIL RIDGE FORMATION WHEN SOWING TILLED CROPS KW technology KW seeding-machine KW tilled crops KW crop KW soil ridge KW packing. JO Vestnik of Kazan State Agrarian University AU Eroshkin, A.. AU Sharonov, I.A. AU Zykin , E.. AU Kurdyumov , V.. AU Dolgov, S.. PY 2016 IS 11 PB Kazan state agrarian University