Pré inoculação de sementes de soja em relação ao processo padrão utilizado pelo agricultor

Abstract

The objective of this study was to evaluate the efficacy of pre-inoculation treatment compared to the standard of the producer to be treated on sowing day, placed in areas of at least 10 ha in side-by-side plots under the same soil, climate and Day of sowing. The "demo plots" were installed in different regions of the states of Mato Grosso and Mato Grosso do Sul. The products used were the pre-treatment product by commercial name of Nitragin Optimize Power and the competitor was obtained in the property in which the Field and take the usual inoculant of the producer, however always comparing with inoculated area. The treatment was carried out using the usual chemistries of the property, differentiating only the type and the day of the treatment with the inoculant. The seeds were treated with the chemicals and inoculant no more than 4 days before sowing, while the concurrent plot was used the same chemicals, but inoculated on the day of sowing. At 25 to 30 days after the emergency, evaluations were performed, and 3 plants were collected at 4 random points of each treatment. The evaluations were plant height, root depth, number of nodules at the main root, total nodules and subsequent yield. It can be seen that the use of the technology with Optimize Power results in a bigger and more efficient nodulation with more nodules around the root crown of the root and above all, providing a safety and autonomy for this seed to remain up to 4 days treated with inoculants and chemicals. This pre-inoculation process increased soybean yield.