The monograph examines the scientific foundations, methodological approaches and applied aspects of the electroactivation of air and water solutions for their direct use in various technological processes of agricultural production. The results of numerous experimental studies of the authors and other researchers conducted over several years to substantiate the parameters and operating modes of electrotechnological installations for the electrical activation of various media are presented. It is intended for undergraduates, postgraduates, engineers and researchers who study and deal with issues of electrical technology, in particular, the development of electroactivators and the use of electroactivation processes in various areas of agricultural production and processing of agricultural products.