This work is aimed at evaluating the efficiency of Trichoderma asperellum, UFT 201 as a growth promoter of soybean plant in the Cerrado biome in Tocantins, Brazil. Two field experiments were performed in two different cities using different concentrations (1, 2, 3 and 4 kg ha-1) (Porto Nacional and Formoso do Araguaia). For inoculation treatments with Trichoderma asperellum UFT 201 (comprising the granulated product), there were differences between the doses, with positive results for treatments with doses of 2 to 4 kg ha-1. In two experiments, a dose of 2 kg ha-1was recommended, with similar results to the highest doses used. The strain of T. asperellum UFT 201 can be recommended as a plant growth promoter in soybean.
Key words: Bioagent, bioinducer, growth promoter, Glycine max.
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