A hydroponic system is a modern cultivation technology that grows plants without soil, using nutrient solutions instead. It is suitable for cultivating vegetables, flowers, and medicinal plants. Compared to traditional agricultural techniques, hydroponic systems utilize water and nutrients more efficiently, reduce the use of chemical pesticides and fertilizers, and achieve higher spatial utilization.

The rapid development of hydroponic systems is significant for food supply, enabling urban agriculture while protecting the environment and natural resources.

In hydroponic systems, plants absorb essential nutrients dissolved in water through their roots, such as phosphorus, potassium, magnesium, sulfur, calcium, copper, and zinc. In addition to micronutrients, oxygen is critical for plant growth and health. For example, in a nutrient solution at 20°C, the oxygen saturation must reach at least 9 mg/L; otherwise, plant roots may rot, leading to death.

A PSA (Pressure Swing Adsorption) oxygen generation system can produce oxygen on-site in an eco-friendly manner, with purity ranging from 80% to 99.5%. The oxygen generated is delivered to a product container, and the nutrient-rich, oxygenated solution is then pumped into the hydroponic system, fulfilling all plant growth requirements.

Data shows that hydroponically growing lettuce requires 90% less water than traditional field agriculture. Conventional farming involves labor-intensive tasks like watering, fertilizing, and pesticide application, whereas hydroponics simplifies these processes and increases yields. Plants in hydroponic systems do not need watering as their roots are immersed in nutrient solutions, eliminating pest threats (and the need for pesticides). Automated operations also reduce the workforce needed for maintenance.

Hydroponic systems represent a sustainable food production solution for the future. Pairing them with PSA oxygen generators enhances their benefits: first, the adjustable oxygen purity of PSA systems optimizes oxygen saturation levels in the water; second, on-site oxygen production eliminates the logistics and management associated with bottled oxygen.