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Hydroponics growing attracts horticulture curiosity

During the past year, Oklahoma State University Extension has been flooded with inquiries related to hydroponics plant production. Extension specialists said the nontraditional gardening method is viable, but it also involves more complicated growing techniques. Its surge in popularity is based on several factors.

“We saw interest in gardening in general with the onset of Covid-19 when everyone was at home,” said Josh Campbell, Oklahoma County Extension educator. “They wanted to connect with nature and the food supply by learning more about food sources and safety.”

What makes hydroponics appealing? Plants can grow in a liquid nutrient solution without the presence of soil, and it is a viable means of production for tomatoes, lettuce, cucumbers, and peppers, as well as ornamental crops.

“Hydroponics is an option in urban areas where there’s a lack of access to land bases or productive soil,” Campbell said. “People interested in science and technology from an agricultural standpoint see it as the future for production in small spaces.”

Scaling up
“I’ve seen very few growers scale up their operations to commercial levels and still make a profit,” Campbell said. “You have to be a great horticulturalist and skilled business person to handle the logistical challenges of growing food in a controlled indoor environment. If you don’t provide the right nutrients, water, or light, things can get out of hand quickly.”

The saturation of Oklahoma’s cannabis industry is also responsible for many of the hydroponics inquiries. As cannabis growers begin to close shop, they are contacting OSU Extension specialists, searching for alternative ways to use their large, empty greenhouses.

“I’ll get inquiries of people vaguely saying, ‘I’m growing this plant …’ and I know exactly what they’re growing,” Dunn said with a chuckle. “There are more cannabis growers in Oklahoma than there are in California, and that may not be sustainable.”

“It’s an opportunity for Extension to help vegetable producers identify their hurdles and solve problems,” Campbell said.

In addition to OSU Extension’s collection of fact sheets on hydroponics, Dunn and Campbell are available to answer questions about hydroponics gardening or conduct site visits to assist in vegetable production. Dunn also manages a team of graduate students in the OSU Department of Horticulture and Landscape Architecture who are researching the fertilizer application, algae control, and production methods of hydroponic bell peppers, leafy greens, and other quickly growing vegetables.

For more information:
Oklahoma State Extension 

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