Field centralized multi-level flow and concentration control device and control method

The invention provides a field centralized multi-level flow and concentration control device and a control method, the field centralized multi-level flow and concentration control device comprises a box body and a concentrated solution dropping structure, a water inlet chamber is arranged in the box body, a water inlet pipe for receiving field water is arranged on the side wall of the water inlet chamber, and a buffer structure is arranged in the water inlet chamber; the stabilizing chambers are arranged on one side of the water inlet chamber and are separated by a first vertical flow separation plate, each mixing chamber is arranged on one side of one stabilizing chamber and is separated by a second vertical flow separation plate, each second vertical flow separation plate is provided with a triangular weir, a water distribution pipe is arranged on the side wall of each mixing chamber, and the water distribution pipe is communicated with the water inlet chamber. The tail water chamber is arranged on the othe