Abstract:

Tillage systems represent a major factor contributing directly to create favorable conditions for plant growth and development, in order to obtain grain yield performance. This paper aims to present the influence of tillage systems on soybean crop grain yield Glycine max L. (Merrill), in Southeastern Romania conditions (Moara Domneasca, Ilfov County). The research conducted in 2015 was aimed to assess the influence of tillage systems on some soybean varieties grain yield. Soybean varieties used in this research were from different maturity groups: Carla 000 and PR92B63 0. The experiment had been placed on a chromic luvisoil that was previously cultivated with autumn wheat. Research was based on a split plot experiment where the following factors were analyzed: Factor A - tillage system with six graduations: Ploughing at 20 cm (control, A20), Chisel plow at 20 cm (C20), Chisel plow at 40 cm (C40), Disking at 10 cm (D10), Disking / Ploughing at 20 cm (D/A20) and Disking/ Chisel at 40 cm (D/C40); Factor B soybeans varieties, with two graduations: Carla (group 000) and PR92B63 (group 0). Average grain yield recorded by Carla variety was 2283.73 kg/ha, and for PR92B63 the averege grain yield was 2425.44 kg/ha. Under the influence of tillage systems soybean average grain yield varied from 2065.45 kg/ha to 2511.95 kg/ha.