economy

A great deal of effort is now put in across the country to cover the land with plants. 

Turfs play an important part in it.

Because they are very helpful in covering the surface of land beautifully like carpet, creating the living environment in a cultured and hygienic way and protecting the land of the country.  

But they have a defect that they turn yellow soon if they are malnourished or suffer from diseases. In particular, they are not resistant to high temperature in midsummer. 

Research projects have been undertaken in several units to overcome it, enhance the ornamental effects of turfs and extend their greening period. 

Recently, the turf green strength agents developed by the Architectural Science Institute under Pyongyang University of Architecture have drawn public interest.

“There are three kinds of turf green increasing agents. They exert positive effects in making the drying turfs green and improving their nutritive conditions as they evenly contain essential nutritive elements for the growth of turfs, microelements and plant growth stimulants,” said Kim Hye Gyong, section chief of the institute. 

According to her, they are especially effective at protecting turfs from high temperature and ensuring their high rooting rate. 

They are used by diluting one litre of them with 100 or 200 times of water for 100 square metres of lawn in April and May and with 50 times of water between June and August when they suffer from high temperature most seriously. 

“We introduced the agents in spring this year. And there were no outbreaks of rust disease and root rot. Which made it possible for us to improve the rooting rate of turfs and make them always green,” say employees of the Moranbong District floricultural farm in Pyongyang. 

The green strength agents, which proved to be effective through introduction into various units, are now popular among users as they are practically helpful in covering land with grass, trees and other plants.