Angulação das aletas de rotores utilizados para distribuição a lanço de ureia

Abstract

Agriculture has been modernizing and increasing its production over the last decades, due to greater investments and research in the area. In this way, to aiming the increase in production and profitability of crops, the correct fertilizers must be applied, at the necessary time, in the correct dose and uniformly in the crop, especially in the case of haul nitrogen fertilizers, such as urea, in which the nitrogen supply should not be done entirely at sowing time. This work was carried out in the locality of Rincão dos Souza of Santa Rosa, and used 5 different positions of the fins present in the rotor for the treatments. The aims was to determine the coefficient of variation in different positions of the fins present in the rotors for the distribution of haul ureia. The results indicate that the smaller angle of the fins offers a more uniform distribution of urea.