Žemės dirbimo supaprastinimo poveikis pupų produktyvumo ir energetiniams rodikliams

Abstract

A long-term stationary field experiment (since 1988) was carried out at the Experimental Station of the Aleksandras Stulginskis University (ASU, 54º52′ N, 23º49′ E). The soil of the experiment is silty light loam Planosol (Endohypogleyic-Eutric, PLe-gln-w). Since 1988 wheat, barley, rape, beet and maize crops were investigated in conditions of five different tillage patterns: 1) conventional (22–25 cm) ploughing by a mouldboard plough, 2) shallow (12–15 cm) ploughing by a mouldboard plough, 3) deep (25–30 cm) tillage by a chisel cultivator, 4) shallow (10–12 cm) tillage by a disc harrow, 5) no-till. The aim of the experiment was to investigate the influence of five primary tillage patterns on faba bean productivity parameters. The results of investigations showed, that the reduction of primary tillage up to shallow disking had weak impact on faba bean productivity compared with conventional deep ploughing. No-till system slightly decreased faba bean productivity, however differences were mainly insignificant