PH value control system for plant growth

The invention relates to the field of PH value control, in particular to a PH value control system for plant growth, which comprises a data collection module for collecting real-time plant growth data by using a sensor, the real-time plant growth data comprises different data characteristics, and a public data set is used for collecting different historical plant growth data; the historical plant growth data comprises the same data characteristics as the real-time plant growth data, and the specified PH value is used as a label column of the historical plant growth data; the modeling module carries out model training according to the relation between different data features and label columns in different historical plant growth data and carries out model training by utilizing a decision tree algorithm, and the PH value prediction module carries out specified PH value prediction on real-time plant growth data by utilizing a trained decision tree model and records data influencing the specified PH value. And th