Brazil’s farmers are ad­­opting a high rate of technology in crop and livestock production, but corruption and subpar transportation infrastructure are limiting the potential of the country’s agriculture sector.

Those are some of the findings by a 22-person Iowa Farm Bureau market study tour of livestock production and agriculture in the central Brazilian states of Mato Grosso do Sul, Minas Gerais and Sao Paulo.

"Their biggest challenges are logistics, corruption and quality," said Allen Burt, a Marshall...