Soybeans are an extremely important and valuable part of Iowa agriculture. In 2006, over 10 million acres were planted--more than any other state. Our soybeans and their end-use products are shipped around the world. To stay competitive in a world market, Iowa soybean producers are always looking for innovative ways to increase yields while protecting the environment. During the last two decades, we have witnessed a switch to drilled or narrow-row plant spacing, an increase in acres planted with minimum tillage, and more producers planting herbicide-tolerant soybeans.