The aim of the research was to develop a generalized model of relaxation of electrochemically activated water and aqueous solutions of mineral fertilizers, providing the ability to solve at least three sets of tasks: the task of predicting the activation potentials on the basis of relaxation processes regulations; the solution of optimization problems on the selection of chemical composition of solutions and their concentrations in terms of maximum preservation of the activation potentials within the time period required for the nutrient mixture supply to the plants’ root zone; the solution to the inverse problem of definition of requirements to the parameters and operation of the module of electrochemical activation of water at known values of the activation potential output. The generalized model of a relaxation of electrochemically activated water and aqueous solutions of mineral fertilizers is theoretically and experimentally proved. The model includes three conventional components: the value of the initial activation of natural irrigation water (the value of the potential at the output of electrolyzer, absolute term b); the value of “instant” shift of the activation potential by adding mineral fertilizers; the component determining the dynamics of changes in values of activation potential of the electrochemically activated water and aqueous solutions of mineral fertilizers in due time (dynamic component of the model). The parameters of each of these model components for cases with the use of three types of fertilizers (urea, superphosphate, potassium sulfate) at concentrations ranging from 0.05 to 0.30 %. Have been experimentally identified. The use of the model allows to predict with a high degree of reliability the fall of the activation potential over time, taking into account the type and concentration of chemical substances in solution.
Keywords: electrochemically activated water solution, mineral fertilizers, relaxation, model, prediction.
