Using CEC to make fertility management decisions is a philosophy. There are many different philosophies that incorporate CEC into their recommendations. Many of these philosophies have some good science in them, some just enough to make them seem legit and some could be dangerous.
The Illinois Soybean Association (ISA) checkoff and membership programs represent more than 43,000 soybean farmers in Illinois. The checkoff funds market development and utilization efforts while the membership program supports the government relations interests of Illinois soybean farmers at the local, state, and national level, through the Illinois Soybean Growers (ISG). ISA upholds the interests of Illinois soybean producers through promotion, advocacy, and education with the vision of becoming a market leader in sustainable soybean production and profitability.