Soy is one of the most used sources of protein in animal feed, intended for poultry, pigs and cattle and with increasing consumption in human food. Brazil is considered one of the last agricultural frontiers available to expand the cultivated area and capable of supplying world demand, according to population growth. Soy cultivation is essential for the production system. It enables crop rotation and no-till on straw, assists in biological nitrogen fixation and nutrient recycling in soil.