Agricultural seeds and chemicals supplier Bayer AG is expanding its carbon farming program to members of U.S. farm cooperative CHS Inc, boosting incentives for members to participate in the program. The agreement will make it easier for CHS's 75,000 farmer-members to enroll in Bayer's Carbon Program, an early leader in the drive to encourage farmers to capture carbon by planting off-season crops, tilling the ground less and use fertilizer more efficiently.