News article

The power of clean water in greenhouse operations

Beyond basic irrigation
02 July 2025

Water is a fundamental input in controlled environment agriculture, yet its quality is often underestimated. Whether you're using rainwater, groundwater, or tap water, what’s in that water has a direct impact on crop performance, nutrient availability, and overall operational efficiency.

“Water tends to be overlooked as a variable,” says Ruben Oosterwijk, water systems expert at Priva. “But substances like sodium or bicarbonate can silently disrupt the plant’s nutrient uptake balance, leading to imbalances that compromise plant health and yield.”

Smart storage

A robust water strategy starts with smart storage. Rainwater is ideal due to its low EC, minimal hardness, and absence of problematic salts. To ensure consistent supply, aim for a buffer capacity of 500 to 1,000 cubic meters per hectare of cultivation area. All storage infrastructure—whether tanks or basins—should be properly covered to prevent contamination from debris, algae, or wildlife.

Data-driven adjustments

Consistent water analysis is essential for informed decision-making. Monitoring parameters such as EC, pH, sodium, iron, and bicarbonate levels helps you make targeted adjustments. Are bicarbonate levels too high? The Priva Neutralizer offers an effective solution to correct this and maintain optimal water quality.

Protection against pathogens

Water hygiene also deserves attention. Effective disinfection minimizes the risk of root zone pathogens and systemic infections. With the Priva Vialux M-Line UV system, you can disinfect your water safely and effectively, without the need for chlorine or other chemicals, helping you build a more sustainable cultivation system.

Clean water as a strategy

Clean irrigation water is more than a compliance issue; it’s a strategic resource. When managed properly, it improves nutrient delivery, lowers input costs, and helps prevent disease. With the right tools and practices, growers can proactively manage water quality and directly influence crop outcomes and long-term sustainability.

Interested in more in-depth insights? Download the full whitepaper or contact Priva’s water team for tailored technical consultation.

Interested in more in-depth insights?

Discover all the benefits of a closed water cycle and how to implement it in your greenhouse.

Download the full white paper here