Evaluation of the quality of cones in three hop cultivars in relation to their position on the plant 1-7 CZESŁAW SZEWCZUK, DANUTA SUGIER PDF (Język Polski)
Conservation tillage and catch crops as factors creating the grain yield of spring wheat cv. Zebra cultivated in monoculture 8-23 PIOTR KRASKA PDF (Język Polski)
Nitrogen gross balance in farms specialised in plant production in selected regions of Poland 24-35 JERZY KUPIEC, AGNIESZKA ZDANOWSKA, JANINA ZBIERSKA, ALEKSANDRA WOŹNIAK PDF (Język Polski)
