Hydroponic vegetables are growing in abundance at a planting base in Ninghe district, Tianjin. With specially designed water channels, nutrient solutions can be circulated to the roots of the vegetables every 15 minutes, leaving the rest of the water filtered concentrate for next circulation, according to a Xinhua report.
This kind of water-planted vegetables can be delivered to the market in average 30 days. With 8-10 planting seasons per year, yield productivity is 4 to 6 times more than traditional methods.
The base, owning more than 50 greenhouses for hydroponic vegetables, not only serves the local market in Tianjin, but also other markets in nearby regions.