The province supplied scores of tons of humic acid compound fertilizer to its cities and counties and see to it that farm work, including fertilizing and plowing, is done in a sci-tech way during the rainy season.

Farms in Sariwon City, Hwangju County, etc. apply various growth stimulants to rice fields in a planned way.

Now that the atmospheric humidity is high and the percentage of sunshine is low, Songrim City takes a scientific measure.

The same is true of Singye, Koksan, Suan and Kumchon counties.