RATING LONG-TERM USE OF SIMPLIFICATIONS IN TILLAGE AND PREVIOUS CROP ON BIOMETRIC FEATURES, PHYSIOLOGICAL AND YIELD OF WINTER WHEAT CULTIVAR ‘Kobra Plus’ Journal title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica Authors: Marta SCHILLER, Sławomir STANKOWSKI, Cezary PODSIADŁO, Stanisław PUŻYŃSKI, Bożena MICHALSKA Subject(s):