There are many generic terms in our industry and we interchange them often, such as soilless culture, hydroponics, greenhouse production, controlled environment horticulture, protected cropping, etc, etc.
Follow this link to read about ‘Can Hydroponics be organic? And does it really matter?!” in PCA’s Soilless Australia magazine Vol 4 / 2015.
The main distinction between open and closed systems is whether or not water or nutrient solution is permitted to leave on a constant basis. Closed or recirculating systems return solution back to the plants, necessitating a balanced nutrient. By doing so, closed systems are environmentally sound & responsible offering 40% savings on both water and fertilisers. It follows that in the future closed systems may become mandatory technology.
This definition is important to differentiate our products from others and to identify those that have contributed capital expenditure towards a true hydroponic production system.
It is vital that we continue to promote & market the business of “hydroponics” else we run the risk of being just another fruit, vegetable or flower grower.