Yomju County in North Phyongan Province has pushed ahead with the work to improve soil fertility after learning in detail about conditions of fields with bad fertility, including low-yielding fields.

Sukchon County in South Phyongan Province is generalizing the experience of farms and workteams which have produced a lot of grains despite unfavorable weather conditions by directing efforts to improve soil fertility.

Pukchang County produces a large amount of slaked lime everyday.

Unchon County in South Hwanghae Province has pushed ahead with the improvement of soil fertility, taking concrete measures to increase per-hectare grain output next year.

The agricultural workers are putting spurs to the production of manure and materials for huminite, well aware that the success by the introduction of advanced farming methods and technologies depends on high soil fertility.

Officials and agricultural workers in other areas are also making positive efforts to increase the production of manure.