I grow rice and soybeans on heavy clay soils in the Arkansas river valley of western Arkansas. The rice/soybean rotation is challenging on this soil type. Here is a description of how a farmer in Mississippi gets his soybeans planted after rice. His situation is similar to mine and I picked up a few good ideas from the article. Thx-Ace http://deltafarmpress.com/soybeans/growing-soybeans-behind-rice-heavy-soils