The present invention relates to a method for temporal dynamic regulation of the
nutrient solution concentration of hydroponic lettuce for multi-objective collaborative optimization, which solves the defect that it is difficult to determine the optimal
nutrient solution concentration scheme required for the temporal dynamic growth of hydroponic crops interacting with the environment compared with the prior art. The present invention includes the following steps: constructing a prediction model for the temporal
population photosynthetic rate and a prediction model for the temporal
population water use efficiency; constructing a multi-objective optimization model; solving the
Pareto solution set of the multi-objective optimization model; constructing a temporal regulation model for the
nutrient solution concentration; and temporally dynamically regulating the
nutrient solution concentration of hydroponic lettuce. The present invention uses a non-dominated sorting multi-objective
genetic algorithm to solve the multi-objective problems of the prediction model for the temporal
population photosynthetic rate and the prediction model for the temporal population
water use efficiency, and obtains the optimal balanced regulation target value by combining the uniform distribution population strategy, non-dominated sorting,
crowding degree calculation, elite strategy, and population update mechanism, effectively solving the problem of dynamic regulation of the
nutrient solution concentration for the temporal growth of plants.