They include maize seed-covering material, rice nursery herbicide, eurytropic herbicide, organic compound fertilizer, nitrogen humate compound fertilizer and phosphorus bacterial fertilizer.

The maize seed-covering material is composed of 20 percent of insecticide, 40 percent of growth promoter and various kinds of other nutrient elements. It is effective for killing earthworm and accelerating initial growth of crops.

The eurytropic herbicide is appropriate to killing annual and perennial weeds in rice nurseries and rice-transplanted and rice-sown fields.

The phosphorus bacterial and multielement mineral fertilizers are effective for preventing ceitocybe bescens and bacterial leaf blight and raising the yield of grain and vegetables.

Kim Chi Yong, director of the Institute of Agricultural Chemicalization under the Academy of Agricultural Science, told KCNA that many local co-op farms have benefited from the application of those agricultural chemicals and organic fertilizers.