Pre-Treatment of irrigation water in greenhouses

Irrigation water Pre-treatment

Pretreating irrigation water is crucial for a successful irrigation system. In greenhouse jargon this is called 'pre-treatment' because it is the chronological step before fertilization. By continuously analyzing and anticipating the source of the irrigation water, you are in control of your greenhouse irrigation.

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Sources of Irrigation Water

The pre-treatment of irrigation water is highly dependent on the water source. Because irrigation water comes into direct contact with your valuable crops, it must be monitored from start to finish. Sources of water can be rainwater, surface water, spring water or groundwater or tap water.

Irrigation Water Temperature

Although regulating water temperature has not traditionally been included in pre-treatment processes, it remains crucial to the irrigation cycle. Cold water has the ability to hold more dissolved oxygen compared to warm water, an essential component for irrigation. In contrast, warmer water often provides a favorable environment for the reproduction of microorganisms. However, water that is too cold can cause shock to plants. As a result, in greenhouses it is preferable to use ambient water maintained at a temperature of 15-20 degrees Celsius. Management of this factor is accomplished through a heat exchanger linked to the facility's central heating or cooling system.