Grow It Yourself: Diving Into Aquaponics
30 January 2012
This is the VOA Special English Agriculture Report.
Aquaponics is the idea of producing vegetables and fish in the same closed system. It combines aquaculture, or fish farming, with hydroponics, a way to grow plants without soil. Supporters see aquaponics as a way to increase world food supplies and reduce climate change, groundwater pollution and overfishing.
Sylvia Bernstein says the idea is as old as nature.
SYLVIA BERNSTEIN: "Aquaponics is really a recirculating wetland system, so it's happening right on the banks of our lakes."
Ms. Bernstein grew plants in water with a chemical fertilizer for years. Then she discovered she could use wastewater from fish to grow organic vegetables and fruit.
SYLVIA BERNSTEIN: "Honestly, I was very skeptical and just couldn't believe that something as simple as fish waste could become a complete fertilizer. So I had to actually see a system that was in a friend's basement. But when I did, it changed my life."
That was three years ago. Ms. Bernstein built her first system with her son outside her home in Boulder, Colorado. Today she raises tilapia and trout. She feeds them once a day. Her plants grow in containers. There are no weeds in her aquaponics garden, and no need to worry about watering.
SYLVIA BERNSTEIN: "I, just this morning, pulled four radishes and some lettuce for lunch. In my greenhouse right now, I grow all sorts of herbs, tomatoes, peppers."
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