January 26, 2020
KCNA Pyongyang Times

Modern tree nursery built in northern area

Date: 14/01/2020 | Source: Pyongyang Times | Read original version at source

A large tree nursery has been built in the Jungphyong area of Kyongsong County, North Hamgyong Province.

Built in an area of dozens of hectares in a little over a year, the tree nursery has several blocks of plastic panel greenhouses, outdoor cultivation ground and cutting slips collection district, round cutting bed and testing ground for acclimatization, as well as a light substrate production and seed selection and sowing grounds and sapling storehouses equipped with home-made facilities.

The provincial tree nursery annually turns out more than 20 million saplings of good tree species in a scientific and industrial way, unaffected by seasonal factors.

Put on show at the sapling exhibition hall whose round roof is entirely made of glass are over 90 species of plants that grow in the province and there are rooms for promoting scientific and technological exchange in the sector of nursing young trees and afforestation.

A green-oriented office building is equipped with a system that can measure temperatures and humidity of all greenhouses in real time and adjust water supply and temperature to meet the conditions of growth of tree saplings. There are also control rooms for monitoring and controlling a large area of the nursery with computer and conducting research for ensuring scientific production of saplings.

Saplings of good tree species that conform to the climatic and soil conditions of the area are to be selected and cultivated in greenhouses.

All the processes in the plastic panel greenhouse are automated to provide the most ideal conditions and environment for the cultivation of saplings, especially temperature, humidity, sunshine, carbonic acid gas content, ventilation and irrigation. It has a sophisticated aerial flatcar fine-grained irrigation facility.

“Here, we can shorten the production period of saplings and increase per-hectare yield while putting sapling production on normal footing under unfavourable weather conditions and preventing damage by blight,” said researcher Choe Yong Sok.

A new DC high-voltage seed treating process was introduced into the seed selection and sowing ground, making it possible to save much electricity and increase sprouting rate by 30 percent.

Modern irrigation facilities and sunshade devices are installed at the round cutting bed, the outdoor cultivation ground for acclimatizing the saplings grown in greenhouses and the districts of growing saplings in containers, and all the production processes are automated or put on assembly line from seed selection to sowing and packaging of saplings.

According to Choe, more than 100 000 trees of good species have now taken roots in the whole area of the nursery.

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