Abstract
The purpose of this study was to evaluate the efficiency of the product containing Trichoderma asperellum 201 in soybean field productivity in different regions of the Brazilian Cerrado. Thirty-five experiments were conducted in the states of Bahia and Tocantins, in different municipalities, in the 2017/2018, 2018/2019 and 2019/2020 seasons. The treatments used were the seed treatment with T. asperellum and a control (without inoculation of Trichoderma). The seeds were inoculated (TS) with product containing T. asperellum, at a dose of 5 g per kg of seeds, formulated with a minimum concentration of 2 x 108 CFU g-1, with graphite as an inert material in the formulation. In all fields in the states of Bahia and Tocantins, positive effects (p < 0.05) of inoculation of the T. asperellum were observed in the productivity of different soybean cultivars. In the Bahia state fields, productivity gains varied between seasons, with an average productivity gain of 8.01% seen for the 2017/2018 crop, 3.97% for the 2018/2019 crop, and 9.23% for the 2019/2020 crop. In Tocantins, the average productivity, considering all experiments, was 13.02%.
Highlights
Soybean (Glycine max (L.) Merrill) production is one of the economic activities that has grown the most in recent years in Brazil (Sousa & Bittencourt, 2019)
The purpose of this study was to evaluate the efficiency of the product containing Trichoderma asperellum 201 in soybean field productivity in different regions of the Brazilian Cerrado
Bahia 2018/2019 For the 2018/2019 crop, in all treatments with T. asperellum the productivity was significantly higher (p < 0.05) compared to the control without inoculation (Table 3). In these different areas productivity gains ranged from 2.28 to 5.04% compared to the control without inoculation, with the average increase in productivity compared to the control treatment being 3.97%
Summary
Soybean (Glycine max (L.) Merrill) production is one of the economic activities that has grown the most in recent years in Brazil (Sousa & Bittencourt, 2019). Represents the main Brazilian agricultural commodity, its importance in the economy is since Brazil is the largest exporter of the complex (grain, bran, and oil) and the first world producer (Conab, 2018). The Matopiba region is an extremely important agricultural frontier in Brazil. Over the past ten years, Matopiba has accounted for almost 10% of the country’s grain production, and its three main products - soybeans, corn and cotton - have at least doubled their production in this period (Input, 2021; Embrapa, 2021). The increase in the world’s population and climate change represents a challenge for global agricultural production. There is a need to intensify agricultural production in a sustainable way and find solutions to combat abiotic stress, pathogens, and pests
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