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.

WASHINGTON, April 12, 2017 - Can hydroponics – fruit and vegetable growing systems that don’t use soil – be certified as organic farming? The Agriculture Department’s answer is likely coming soon.

Close up of woman's hands in gloves pours liquid mineral fertilizer in watering can with water in backyard. Cultivation and caring for outdoor potted plants. Hobbies and leisure, urban jungle concept.

Organic fertilizer ingredients are less expensive when bought in bulk. The basic organic fertilizer ingredients are seed meal, agricultural lime, gypsum, dolomitic lime (or dolomite), kelp meal and ...