Conventional tillage (CT) practices are one of the many emerging environmental agronomic-economic issues that are addressed in contemporary cropping systems. | Research Article Turk J Agric For 35 (2011) 1-7 © TÜBİTAK doi: Winter wheat yield and yield components as affected by soil tillage systems Irena JUG1, Danijel JUG1,*, Mirjana SABO2, Bojan STIPEŠEVIĆ1, Miro STOŠIĆ1 1 Faculty of Agriculture, J. J. Strossmayer University, Trg Sv. Trojstva 3, 31 000 Osijek - CROATIA 2Faculty of Food Technology, J. J. Strossmayer University, Trg Sv. Trojstva 3, 31 000 Osijek - CROATIA Received: Abstract: Eight different soil tillage systems (TS) for winter wheat a er soybean crop production were compared at the chernozem soil type in Croatian Baranya region in a 4-year period (2001/2002, 2002/2003, 2003/2004, 2004/2005). Tillage systems were: CT) conventional tillage, based on autumn mouldboard ploughing; DH) autumn disc harrowing; CH) autumn disc harrowing + chiselling; NT) No-tillage; CSDW) DH for winter wheat, alternated with CT for previous crop soybean; CWDS) CT for wheat, DH for soybean; CsNw) NT for wheat, CT for soybean; and CwNs) CT for wheat, NT for soybean. e dry conditions experienced in 2002/2003 decreased at half winter wheat grain yield at treatments NT and CwNs. e most stable grain yields were obtained by CT, CH, and CSDW in the third of 4 experimental years. CsNw, DH and CWDS did not result in significant crop yield reduction when compared to CT. ere was no striking regularity regarding applied TS at the grain yield components. e strongest effects on yield and yield components for winter wheat were due to the climate conditions. TS had a significant effect on the grain yield and crop population in the earing stage in all 4 experimental years. e biggest difference in stem height was determined between CWDS and CsNw. Mass of plant, number of grains per spike, and hectolitre mass were greater under CT than under other TS. Coefficient of tillering and mass of 1000 grains had approximate values for all applied TS. In conclusion, CH, CSDW, and CsNw produced similar or slightly better .
