Effects of autumn and spring primary tillage on soybean yield and 1000-grain weight in the agro-ecological conditions of Serbia

Soybean yield depends on the selection of cultivars, soil fertility, applied cultivation practices, and agroclimatic conditions over years. High-quality timely primary tillage is essential for stable development high yields soybean plants. The effect autumn spring 1000-grain weight was examined in a three-year study (2013-2015). trial included cultivars with different maturity periods, developed at Institute Field Vegetable Crops Novi Sad: Valjevka Galina 0 group, Sava NS Maximus I Rubin Venera II group. Trial subplots were prepared using periods tillage, which conducted (November, 01–05) (March, 25–31). highest obtained after all three Yield decrease by 2.72% to 38.91% 1.33%-11.93% recorded tillage.