Modern agriculture longs to increase grain yield without the necessity of opening new areas. In order to do that, techniques such as line spacing manipulation and plant density are being studied with the intention to obtain higher productivity. The aim of this study was to evaluate the influence of different soil management and sowing systems on the Asian rust severity and on the agronomic characteristics of the soybean. The experimental design was a randomized complete block design with 3x3 matrices, corresponding to three soil management systems and three types of soybean sowing, with four replications. This methodology achieved a total of 36 experimental plots shaped by 4 meters wide and 10 meters long, totalizing an area of 40 m2. The interaction between direct and densified sowing obtained less severity of Asian rust and showed a tendency to raise plant's height at flowering, maturation and insertion of the first pod and to increase plants' population and productivity.