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Chemigation injection equipment controller, namely, electronic and power controllers for chemigation injection units used for metering liquid fertilizer, insecticides, herbicides, fungicides, soil amendments, pH modifiers, and wetting agents into agricultural irrigation distribution lines; agricultural injection systems, namely, check valves and bleeder valves for high and low pressure chemigation injection systems used for distribute liquid fertilizer, insecticides, herbicides, fungicides, soil amendments, pH modifiers, and wetting agents into agricultural irrigation distribution lines; chemigation injection equipment, namely, high and low pressure chemigation injection units for metering liquid fertilizer, insecticides, herbicides, fungicides, soil amendments, pH modifiers, and wetting agents into agricultural irrigation distribution lines; liquid agrichemical dispensing system, namely, nozzle-less dispersing systems for the uniform, direct delivery of liquid agrichemicals to the soil