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In soil-based agriculture operations, ORP measurements are used in rinse waters to ensure proper disinfection. Similarly, hydroponics-based agriculture utilizes ORP to determine if aeration and circulation of the hydroponic water is sufficient.
Both applications use ORP measurements to determine mitigation strategies including fertilizer and nutrient needs. If soils or hydroponic solutions are outside the target ORP measurement, it can severely affect plant growth, nutrient, and elemental absorption. These challenges can be mitigated with the optimal sensor design, in particular the reference junction design, housing material, and sensing chemistry.