Soil nutrient management based on Soil Information System in Korea

The Soil Information System (SIS) in Korea has been developed to manage the soil fertility and soil resources for sustaining agricultural production. To manage the fertilization, the fertilizer application rates were established considering soil nutrient contents and crop requirements. The fertilizer recommendation program in the soil information system is based on the fertilization equation by soil testing, and it provides the farmer with soil information such as soil physical and chemical properties, and fertilizer application rates. Through this system, the farmer can apply fertilizers economically, and the soil-testing database can be used to establish the fertilizer supply policy.