Estimation of N-balance and Agronomical Approaches to Minimizing Nitrogen Pollution in Korea Agriculture

한국 국토의 질소부하화 질소오염 방지대책

This paper was discussed N-balance of the republic of Korea. About 397Kg N/ha was inputted into the chemical fertilizer, animal feed, precipitation and nitrogen fixation. About 15kg N/ha was outputted from the Korea. The amount of N surplus was 397kg N/ha and loaded into environment. This causes the problem of water, air and soil pollution. It should take measures to improve the situation, such as depending more on selfsufficient feed and using nutrient cycling functions of soils.