EVALUATION OF CHANGES IN THE EFFICIENCY OF NITROGEN UTILIZATION IN AGRICULTURAL PRODUCTION OF POLAND Journal title: Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu Authors: Jerzy Kopiński Subject(s):
TENDENCIES OF CHANGING INTENSITY OF NITROGEN MANAGEMENT IN THE POLISH REGIONS Journal title: Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu Authors: Jerzy Kopiński Subject(s):
