Utilizing torque characteristic to detect product flow through a meter

A blockage detection system, comprising:

• a torque characteristic sensor configured to sense a first torque characteristic value indicative of torque applied by a first motor to a first rotary dispenser on an agricultural application machine and generate a first torque characteristic signal indicative of the first torque characteristic value;
• a blockage state detector configured to receive the first torque characteristic signal and compute a blockage state corresponding to the first rotary dispenser based on the first torque characteristic value;
• and
• a control signal generator configured to generate a control signal based on the blockage state.