EFEITO DA ADIÇÃO DE FERTILIZANTE MINERAL E ORGANOMINERAL NO DESEMPENHO DA CULTURA DA SOJA

Abstract

Thinking about the importance of phosphorus and the use of organomineral in the soybean crop, the aim of this study was to evaluate application doses of triple super phosphate (SFT) and organomineral P (NP), on growth characteristics, yield and oil quality in soybeans, grown in field conditions. For this, the experimental design in blocks was adopted. randomly in the simple factorial scheme isolating the factor mineral doses and doses of organomineral. The behavior of plant variables as a function of isolated factors, were represented and analyzed by the second degree equation, when a difference was verified. statistic by the F test at 5% probability. Thus, the following conclusions were reached: the P sources did not provide statistical difference in the analyzed soybean variables, however, the doses of P, provided statistical difference in plant height, dry mass of the aerial part and productivity of the soybean crop; Doses of 200 and 150 kg ha-1 of SFT and NP, provided the greatest heights of soybean plants, respectively; Doses of 150 and 200 kg ha-1 of SFT and NP, provided the highest shoot dry mass production, respectively. Per In the end, it is considered that, due to the minimal differences in the behavior of the variables oil content and productivity, the use of organomineral can be recommended as a function of its greatest importance in environmental sustainability.