RESUMOA soja é fundamental para o progresso do agronegócio, porém sua produtividade pode ser afetada pelas mudanças climáticas. Assim, alternativas que aumentem o rendimento das plantas em condições adversas são fundamentais, e os fungos micorrízicos arbusculares (FMA) destacam-se, pois, associam-se as raízes das plantas aumentando a absorção de água e nutrientes. Assim, o objetivo deste trabalho foi avaliar a produtividade de plantas de soja a campo experimental em associação com o FMA Rhizophagus clarus sob condição de sistema irrigado e não irrigado. Ao final, avaliou-se parâmetros agronômicos e de simbiose com o FMA. O delineamento experimental foi em blocos casualizados com parcelas subdivididas, as médias obtidas foram submetidas à análise de variância e comparadas pelo teste Tukey (5%), utilizando software SISVAR. Plantas de soja quando associadas com FMA e cultivadas em condição não irrigada, obtiveram maior produtividade do que plantas no sistema irrigado, além de peso de 1000 grãos. Desta forma, conclui-se que a inoculação beneficia a produtividade da soja em condições de sistema não irrigado. PALAVRAS-CHAVE: produtividade de grãos, micorriza, colonização. ABSTRACTSoybeans are key to agribusiness progress, but their production can be affected by climate change. Thus, alternatives that increase the yield of the plants under adverse conditions are fundamental, and the arbuscular mycorrhizal fungi (FMA) stand out. Therefore, they associate the roots of the plants, increasing the absorption of water and nutrients. Thus, the objective of this work was to evaluate soybean yield in the field experiment in association with FMA Rhizophagus clarus under conditions of irrigated and nonirrigated system. In the end, agronomic and symbiosis parameters were evaluated with FMA. The experimental design was in randomized blocks with subdivided plots, the means obtained were submitted to analysis of variance and compared by the Tukey test (5%), using SISVAR software. Soybean plants when associated with FMA and cultivated in non-irrigated conditions, obtained higher productivity than plants in the irrigated system and weight of 1000 grains. In this way, it is concluded that inoculation benefits soybean yield under non-irrigated system conditions.
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