Effects of short crop rotation and soil tillage on winter wheat development in central Lithuania
Lithuanian Institute of AgricultureInstituto aleja 1, Akademija, Kedainiai distr., LT-58344, Lithuania;e-mail: email@example.com
A three year (2005–2008) field experiment was conducted in Central Lithuania to study the effects of different crop rotations (spring oil-seed rape-spring barley-winter wheat; winter wheat-spring rape; winter wheat monocrop) in conventional (ploughing to a 20–22 cm depth) and reduced (stubble cultivation to a 10–12 cm depth) soil tillage systems on winter wheat yield and its components. Winter wheat grain yield increased in the three-course crop rotation in the conventional (ploughing) cultivation system. However, wheat grain yield decreased by only 1.4 % in reduced tillage (stubble cultivation) compared to conventional tillage. Shortening of crop rotations, or different soil tillage systems used, did not exert any adverse effect on the variation of the number of grains per ear and the length of straw. The results of the study indicate that the different crop rotations in two soil tillage systems in Central Lithuania did not significantly affect wheat grain yield components.