부산대학교 도서관

Korea is one of countries that have high application rates of inorganic fertilizers. Recently, environmentalpollution has been announced due to overuse of fertilizer. To reduce the fertilizer usage, agricultural policiesin terms of environmental sustainability has been introduced since the 1990s. This study aims to investigatetotal fertilization rates by nutrients and food crops in 9 provinces of Korea. In results, the average of totalfertilizer inputs (N-P2O5-K2O) was 18.3-11.2-12.7 kg 10a-1. Total fertilizer usage of potato was 35.5 kg 10a-1as N that was higher than other crops. The order of contribution to total fertilizer use was inorganic fertilizer >compost > organic fertilizer. As a result, main concern of excess and use of fertilizers were focused oninorganic fertilizer. However, because of the high nutrient content of compost, the application rate of compostshould be monitored and controlled. Therefore, long-term monitoring and proper training is required tounderstand nutrient characteristics of fertilizer and to reserve environmental sustainability in agriculture.