This study analyze the economic effect of chemical fertilizer. We used the input and output data, and the analysis variables include production output nitrogen, phosphoric acid, potassium, seeds, and labor. The main results are as follows. First, for spring potatoes, potassium increases to a certain level of output, but over a certain stage, the output decreases as the input increases. Optimal use of potassium in the calculation of spring potatoes can achieve the effect of reducing input costs and increasing output simultaneously. Second, radish In autumn, nitrogen increases to a certain level, but over a certain stage it represents a reverse U-shaped relationship in which output decreases as input increases. This means that reducing the amount of fertilizer input increases the output. This means that soil-related agricultural big data can contribute to the management of nutrients and greenhouse gas reduction in agricultural land.

Ⅰ. 서 론
 Ⅱ. 작목별 비료사용 실태
 Ⅲ. 비료투입의 경제적 효과
  1. 봄감자
  2. 가을무
  3. 토마토(반촉성)
 Ⅳ. 요약 및 결론
 References

• 이상호(영남대학교 식품경제외식학과) | Lee Sang-Ho
• 송경환(순천대학교 농업경제학과) | Song Kyung-Hwan Corresponding author