Evaluation of Trichoderma asperelloides-based inoculant as growth promoter of soybean (Glycine max (L.) Merr.): a field-scale study in Brazil
2023
Senger, M. | Urrea-Valencia, S. | Nazari, M.T. | Vey, R.T. | Piccin, J.S. | Martin, T.N.
Trichoderma strains have several biotic and abiotic functions important for agriculture. However, their efficiency varies depending on different aspects. In this context, this study aimed to evaluate the agronomic efficiency of a Trichoderma asperelloides-based inoculant (FT10), to verify its ability to promote soybean growth (Glycine max). The experiments were conducted at field level in four distinct edaphoclimatic zones in Brazil. The statistical design used was in randomized blocks, with six treatments and four replications. The treatments applied were: (1) Control; (2) Positive control (Co-Mo Platinum); (3) Standard product (ICB Nutrisolo Trichoderma); (4, 5 and 6) FT10 Inoculant (2, 5 and 10 g ha⁻¹, respectively). The parameters evaluated were: plant stand, number and mass of nodules, shoot and root biomass, mass of one thousand grains and soybean yield. The doses of 5.0 and 10.0 g ha⁻¹ of FT10 contributed to the increase in germination and final plant stand, as well as to the increase of shoot and root biomass. In this study, 5.0 g ha⁻¹ of FT10 presented the highest number and mass of nodules in relation to the control. The gains in these parameters resulted in higher yields that were statistically different from some control trials, with an increase in grain yield between 8.9 and 15.1% compared to the control. Therefore, Trichoderma asperelloides can be used as a soybean growth promoter, and its application via the sowing furrow of 5.0 g ha⁻¹ of FT10 is the most promising treatment.
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