The Ryonpho Greenhouse Farm, in which a sea of greenhouses stretches out boundlessly, has over 850 greenhouses, each of which covers a hectare, 1 000m2 and 500m2 in area.
“Our greenhouse farm is a large-scale greenhouse vegetable producer in which the production of vegetables is on a modern, intensive and industrial basis. Advanced technologies including hydroponic cultivation and comprehensive liquid nutrient analyzing system have been introduced into each greenhouse to ensure high productivity,” said Choe Myong Chol, senior staffer of the farm.
According to him, the farm turns out cucumber, tomato, red pepper, watermelon, bok choy, celery and various other fruit and green vegetables.
It is a larger-scale farm furnished with more advanced technology and equipment than the Jungphyong Greenhouse Farm which was built earlier in the country.
Over 830 semi-arched double-sheet hydroponic greenhouses nestling like one in a huge area, for example, are designed to manage the environment and liquid nutrients on a scientific and optimized way while correctly understanding the growth of crops and the condition of cultivation substrates.
The greenhouses can increase heat-preserving effect with the help of double-vinyl sheet system and heat-preserving cover to produce vegetables under the condition with no heating system, save manpower and improve productivity by introducing a soilless cultivation method.
To meet the climatic characteristics of the Ryonpho area, in which wind blows hard, highly functional and quality vinyl sheets with tensile strength are used and the quality level and lifespan of truss and heat-preserving cover are higher and longer than before.
Among over 830 semi-arched double-sheet hydroponic greenhouses, dozens of seedling greenhouses, where geothermal heating pipes were installed to ensure the growth of seedlings, can reportedly ensure the cultivation of vegetable seedlings all the year round.
Soil cultivation greenhouses covered with inclined roofs of glass panes interconnecting with each other and a dozen soil cultivation greenhouses covered with arched roofs of interconnecting vinyl sheets are also effective as each of them covers an area of a hectare to ensure the high utilization rate of machines and the production of different kinds of vegetables suitable for soil cultivation.
The hydroponic and soil cultivation greenhouses, including hydroponic greenhouses covered with inclined roofs of glass panes interconnecting with each other which can be referred to as the model of practical education farm for diffusing advanced agricultural technology, are equipped with an automatic system of supply nutrient solution by which the characteristic values including the amount of consumption of nutrient solution according to vegetable crops and stages of their growth are measured scientifically and the solution is supplied accordingly. And a high-performance integrated production system with different functions added to it is in operation there.
According to Kim Jin Hyok, chief of the vegetable technology laboratory, the temperature, humidity and salinity of all the greenhouses and all other data are measured automatically, and nutrient solution is automatically supplied according to weather and time and the management of environment is done automatically. In particular, the hydroponic greenhouses covered with inclined roofs of glass panes interconnecting with each other are modern ones where everything is done on a scientific, unmanned and automatic footing.
The Ryonpho Greenhouse Farm is designed to save much fertilizer and put production on a normal track as its humus soil production process is rationally furnished, the hydroponic greenhouses are fully equipped with a foundation for specially producing cultivation substrates and distributed nutrient solution is sterilized and supplemented with nutritive elements to be reused.
“Our farm was built and is in operation for the people both in name and reality. A variety of vegetables produced here will be supplied to residents in Hamhung and other parts of the province in the near future to give them joy,” said manager Jo Song Dae.
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