Review of Research on Irrigation Decision Control

With the development of intelligent control technology in the field of agriculture, the research of intelligent irrigation decision control has been widely concerned by scholars. Soil moisture, crop physiology and environment all have important influence on the precision of irrigation decision, and the influence is nonlinear and fuzzy. Therefore, it is difficult to build an accurate mathematical model to abtain an accurate irrigation scheme. How to combine the crop with other influencing factors, use sensor technology and intelligent control technology to build an intelligent irrigation decision-making system is an urgent problem need to be solved in irrigation decision-making. This article presents a comprehensive review of irrigation decision control from the aspects of expert system, fuzzy control and neural network. And pointing out the problems that need to be solved by various intelligent methods in irrigation decision making.