A frequent question in hydroponic groups is whether organic nutrients can be used in hydroponic systems. Some people assume that if a nutrient bottle does not have an “organic” label, it is not safe.

Hydroponic lettuce is usually grown by continuously recycling the nutrient solution during production. As nutrients are absorbed by plant roots, stock solution is added to the recycled solution to ...

How hydroponics works, types, and pros and cons. Katherine Gallagher is a writer and sustainability expert. She holds a B.A. in English Literature from Chapman University and a Sustainable Tourism ...