Visitors to 亚洲AV鈥檚 hydroponic greenhouse on Tuesday were treated much like visitors to a hospital during flu season, as they were asked to apply hand sanitizer before coming into contact with the plants.
George Mason students, staff and faculty got their first looks at the newly renovated greenhouse that鈥檚 part of the school鈥檚 push toward improved sustainability.
The precaution is for a good reason, says Doni Ward, greenhouse coordinator.
The plants are harvested for food consumption at Ike鈥檚, the nearby dining facility, so the utmost care is taken to keep them germ-free.
In an agreement between and , the greenhouse will provide some 200 pounds of food to Ike鈥檚 and for catered university events, in exchange for funding of a part-time greenhouse staff position.
Before its rebirth as a food producer, the greenhouse in Presidents Park, near Taylor Hall, 听was used for three years to grow plants for biology and ecology experiments conducted by classes in the College of Science, which moved to a newer greenhouse atop Exploratory Hall.
During the renovation project, steps were taken to install equipment that would closely mimic naturally occurring conditions outside, Ward says.
A natural gas-powered heater kicks in if conditions become too cold in the greenhouse, while a wet wall cooling system is used along with fans to cool things down and keep air moving through the space. Plants do not thrive in stagnant air, she says.
The greenhouse is special in that it is hydroponic.听Instead of soil, it grows plants inside Rockwool, a sponge-like material that allows nutrient-rich water to reach the plants. Water is constantly recirculated for two weeks, after which all new water is pumped in, she says.
Special grow lamps emit only red and blue light because only light from that end of color spectrum is absorbed by plants. The lighting is eco-friendly in that it only costs a few cents a day to run and lasts for 10 to 12 years, Ward says.
Mason environmental science major Maryam Sedaghatpour was one of the first to tour the greenhouse on Tuesday and says she鈥檚 excited that it uses a soiless medium to grow plants.
鈥淚t鈥檚 a great way to grow food locally,鈥 she says. 鈥淚 love the idea of having food grown at [Mason] for students to eat.鈥
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