The technology for cultivating pleurotus based on rice straw fermentation has been developed by scientists and researchers of Kim Il Sung University, the State Academy of Sciences and the Central Mushroom Institute of the Ministry of Agriculture.

After analyzing the physiochemical composition of rice straw and the biological characteristic of pleurotus, they settled sci-tech issues arising in the substrate fermentation, spore cultivation and cultivation of mushroom before putting pleurotus cultivation on an industrial basis.

They also manufactured rice straw cutter, sterilizer and other energy-saving equipment for mushroom production.

New species of mushroom have been bred and the wastes of mushroom production recycled.