Design and Experiment of Intelligent Control System of Crop Partial Root-zone Alternative Irrigation

摘要

The existing alternative irrigation devices are still stuck in the stage manually select the irrigated area through human operation to achieve the selected area of irrigation, time-consuming, response speed is slow. The existing irrigation devices need to use other means of experimental observations to determine the actual moisture content of the different regions of the crop root zone to determine which area needs irrigation and when it needs irrigation, has seriously affected the accuracy of the control. In this paper the intelligent control System of crop partial root-zone alternative irrigation are designed, the overall structure and principle of system are introduced, designing the hardware and software of the system, dong the test. Experiment results indicated that the system has fast response, good stability, and water using efficiency increased by 9%. This system is suitable for controlling the partial root-zone alternative irrigation automatically, the corn, cotton, potatoes and other field furrow irrigation of crops and fruit trees and greenhouse vegetable crops.