Rains Impacting South American Soy Crops Farmers in the Brazilian state of Mato Grosso are beginning to harvest early-maturing soybeans, but almost daily rainfall is preventing any progress. There have been several days of stoppage in some areas, while they are only able to harvest for a few hours each day elsewhere. Forecasters expect the daily rainfall to continue for at least the rest of this week and perhaps next week. Frequent rains in central and northern Brazil are typical during a La Nina, which is now developing. In some past years, this has caused soybeans to sprout in the pods with major yield and quality losses. Such rainfall is also conducive to the development of Asian soybean rust, another factor that can greatly reduce yie...