Grodan is aware of this and is dedicated to water management since its establishment in 1969 – 50 years ago. It has also committed itself to the UN Sustainable Development Goals, one of which is water management.
Via innovation and information Grodan contributes to efficient greenhouse water usage. Now, at the beginning of 2019, it’s time to take stock. We spoke via Skype with the man in Grodan who deals with water, Technical Services Manager Andrew Lee. “We begin by advising growers how to cultivate in hydroponic systems—basically growing plants in a substrate to which we apply precise volumes of water and fertilser. This method of cultivation consumes significantly less water than open field soil grown crops and any water that drains from the system can be collected and recycled. The difference in water use is significant. Growing one kilo of tomatoes in an open field uses 60 litres of water, whereas a hydroponic system consumes only 15 litres.”