Jun. 25—All it takes is just a little water and fertilizer to grow a head of lettuce with a low-cost, efficient system of hydroponic gardening widely known as "the Kratky method." All it takes is just ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Hydroponic systems, which allow plants to grow in water rather than soil, are popular ...

The development of new urban agriculture technologies, such as vertical and smart farms, has accelerated rapidly in recent years. These technologies are based on hydroponic cultivation in which plants ...

Jensen Uyeda, an extension service agent with the University of Hawaii at Manoa College of Tropical Agriculture and Human Resources, places Romaine lettuce seedlings into 2-inch holes drilled into the ...