The officials and employees of the Central Tree Nursery grew, in a phased way, saplings of scores of good species like Pinus strobes and Larix lepolepis with high economic value.

They also worked out a plan of producing wild fruit saplings including young pine-nut trees and chestnut trees.

The researchers of the nursery completed the way of attaining optimum growth conditions so as to produce saplings twice a year in greenhouse with less manpower than before.

They invented and introduced new methods of boosting the rate of rooting of saplings on a high level as conditions have been provided for planting trees regardless of seasons.

In addition, they developed an efficient nutritive accelerant with raw materials rich in the country, and introduced it into the production of saplings.