고랭지감자 재배지 양분 과다 및 불균형 해소를 위한 제언 = Reducing Excessive Fertilization and Nutrient Imbalance of Potato Cultivation Field

다국어 초록 (Multilingual Abstract)

The use of complex fertilizer for potato containing relatively high content of phosphate compared with nitrogen and potassium may attribute to high content of available phosphate of soil cultivating potato in mountainous highland. This experiment was conducted at two sites of a farm in Pyeongchang, one of the major potato cultivating county in Korea, in order to examine the effect of recommended fertilization on yield and quality of potato and soil chemical characteristics. Significant difference in growth and yield characteristics of potato was not observed between fertilization based on soil testing and conventional fertilization of potato cultivating farms. Recommended fertilization resulted in relatively low content of available phosphate and exchangeable potassium in soil in comparison with conventional fertilization. Solid and starch contents of potato for recommended fertilization were not significantly different from those for conventional fertilization. The results obtained from the study imply that fertilization based on soil testing or customized fertilization may improve soil characteristics and ensure yield and quality of potato.