It's a long way from the southern reaches of the Brazilian Amazon to China, but it's a path that many more are set to tread. In the early 2000s, China didn't even figure among Brazil's top five export markets, but in every year since 2009, Beijing has been Brasilia's main trade partner. Today, China is a major market for Brazil's soybean exports, which account for over 40 percent of its total exports to the Asian country. And because of Beijing's trade spat with the United States and ambitious infrastructure investments in Brazil, Brazilian soybean exports to China are poised to keep growing....