The majority of the soybean acres in Ohio have been planted. (According to the USDA National Agricultural Statistics Service, 85% of the soybean acres were planted by May 31.) However, even if 5% of the soybean acres are not yet planted, with 5.1 million acres of soybean in Ohio, there are still 255,000 acres left to plant. There are three things to consider when planting soybean in June: 1.) row width, 2.) seeding rate, and 3.) relative maturity.