Abstract :The role of long-term experience with fertilizers is to highlight the relationships established between them, yield formation and changes that occur in the soil. . Two types of factors contribute to these objectives: pedoclimatic factors and technological factors. Among the technological factors, fertilization is a key element in shaping the quality and quantity of the crop and soil. This paper aims to analyze the influence of different doses of nitrogen and phosphorus fertilizers on rape yield, between 2014 – 2016. The studies were performed in stationary experiences placed in a four years rotation: soybean-wheat – rape -corn.

Keywords: fertilization, rape, Nitrogen (N), Phosphorus (P) .

Presentation: oral