Those in Paekam and Kapsan counties have carried on the work to apply growth stimulants under a plan, while introducing the effective methods for extermination of harmful insects.

Farms in Taehongdan County are giving various kinds of effective nutrient solution to have a rich harvest of potatoes.

Junghung and Poso farms in Samjiyon City and other farms, too, made similar achievements in growing potatoes.

Kim Hyong Gwon County and Phungso County carried out plowing farm fields under the adverse effect of moisture and digging drainage canals in a responsible manner, and Kim Jong Suk County rationalized manpower allotment to prevent the damage in the rainy season.

Agricultural workers in Hyesan City are striving to prevent potato blight by using botanical chemicals made with locally available raw materials.