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「WHAT ARE HYDROPONICS?
Every growing plant needs three basic things: light, water, and nutrients. In traditional agriculture, plants grow outside and the sun provides the light, irrigation systems supply the water, and soil provides the nutrients plants need to grow. Hydroponics is a different form of agriculture that can be done indoors and it refers to the cultivation of plants in nutrient-rich water without the use of soil. Since hydroponics can be an indoor technology, lighting is essential. Hydroponic 」
摘錄自: Amber Bosket. 「OPCOM Farm Advanced Hydroponics for STEM Education」。 iBooks.