Labor groups in Argentina went on a 24-hour general strike on Thursday to protest high inflation and other conditions affecting workers, slowing business activity and bringing the Rosario grains export hub to a near standstill. Workers in the South American grains exporting powerhouse are negotiating wage increases in line with inflation estimated at more than 30 percent. The strike comes at the height of Argentine soybean harvesting. The country is the world’s No. 3 supplier of soybeans, as well as the top exporter of soymeal animal feed and soyoil, used to make biofuels. The work stoppage was called by the powerful CGT labor organization, which represents key sectors such as truck drivers and port workers. Bus drivers and other transportation workers have also joined the 24-hour protest, slowing activity in urban centers like Buenos Aires, Mendoza and Cordoba.