A Simulation and Control Model of Root Shoot System with Soil Water as Control Factor

All the characteristichs of root-shoot relation system were induced in the paper, and the control and simulation modle of the system was established according to its mechanisms at the level of organism under the frame of integrity ideas. The test results of the modd show that it can not only be used to study the root-shoot relationship under different soil water regimes, but also regulate and control crop growth or schedule irrigation.