WICHITA, Kan. (AP) — Cargill has announced plans to spend about $50 million on upgrades at its soybean processing plant in Wichita. The Wichita Eagle reports that the planned upgrade is expected to be completed in 2017. The company also expects to increase production by 30 percent at the plant. Cargill has operated the plant since the 1960s. It recently completed a $10 million product line expansion of its adjacent oil dressing refinery plant, which processes most of the soybean oil produced on the site.