신선 토마토 인사이트

"We can implement a greenhouse with complete energy self-sufficiency through triple heat sources including fuel cells, solar heat, and heat pumps." On the 14th at the greenhouse demonstration facility within the Rural Development Administration's National Institute of Agricultural Sciences in Jeonju, North Jeolla Province. Inside a vinyl greenhouse of around 660 square meters, tomatoes in red and blue hung in clusters of up to dozens on each vine wrapped with cylindrical ducts. Cold air flowed from the ducts maintaining an indoor temperature of 28 degrees, with nutrient solution supply bases placed on each tomato branch. The Defnis variety tomatoes planted in January have already grown to 4 meters in height. While tomatoes typically cannot be produced in high-temperature greenhouses during summer and are usually harvested by early July in ordinary farms, here tomatoes can be seen ripening year-round. This is possible through the Korea Machinery Research Institute's demonstrated 'Triple Heat Cogeneration Greenhouse System', which can supply cooling even during summer. The triple heat cogeneration system uses three energy sources - a 30kW fuel cell using hydrogen, a heat pump utilizing air thermal sources, and solar heat - to generate electricity and utilize the generated heat for cooling and heating. During daytime, solar heat is used, while at night or during rain, fuel cells and heat pumps are combined to flexibly supply energy. Unlike existing greenhouse heating and cooling systems primarily designed with single renewable energy sources like solar or geothermal heat, which become unstable depending on weather or have reduced efficiency by season, this system overcomes those limitations.

The United States will impose a 17% tariff on most fresh tomatoes imported from Mexico, while it blocked beef exports again due to the cattle screwworm.

"In the past, I had to spray pesticides two or three times a week. Now, I don't spray them at all. Pests have visibly decreased." Moon Soon-yong (52), secretary of the Jeonbuk Biological Control Agriculture Association, who cultivates tomatoes and peppers on 2,000 pyeong of land in Gosan, Wanju, Jeonbuk, is in his third year of using biological control methods. According to him, while the effects were minimal in the initial stages, the cumulative impact over the years has clearly improved crop conditions. "I can really feel the crops growing comfortably. The leaves are glossy, and pests like root flies or thrips are hardly seen. This seems to be the cumulative effect of biological control," he said.