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논문 기본 정보

자료유형
학술저널
저자정보
Ho-Jun Kang (Jeju Special Self-governing Province Agricultural Research and Extension Services) Sang-Ho Yang (Jeju Special Self-governing Province Agricultural Research and Extension Services) Yu-Kyoung Kim (Jeju Special Self-governing Province Agricultural Research and Extension Services)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제50권 제3호
발행연도
2017.6
수록면
195 - 202 (8page)

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초록· 키워드

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The volcanic ash soils from the Jeju province have low available phosphate because of the high phosphate fixing power of the soils. Phosphorus fertilizerwas dressed after cultivating green manure crops and before cultivating potatoes in order to investigate potato yields, the available phosphate contents, and phosphorus balance in the soils.Green manure crops cultivated in this study were hairy vetch alone and hairy vetch and rye. During potato cultivation, four treatments were conducted in the experiments; NF (non fertilizer), P fertilizer (N-P-K = 0-25-0 kg 10a<SUP>-1</SUP>), NK fertilizer (N-P-K = 18-0-19 kg 10a<SUP>-1</SUP>), and NPK fertilizer (N-P-K = 18-25-19 kg 10a<SUP>-1</SUP>). There were no differences in the yields of potato stem and tuber from the cultivation plots of different green manure crops. However, in the plots with single-sown hairy vetch and mixed-sown hairy vetch and rye, the yields of potato stem and tuber were higher in the P fertilizer plot than in NF plot. The yield of tuber among the treatments with mixed-sown hairy vetch and rye was the highest in the NPK fertilizer plot. The available phosphate content in soils initially increased with time in all plots, but began to decrease gradually after Oct. 18. The available phosphate contents were high in the plots for phosphate fertilization, and the difference in available phosphate content between non-phosphorus fertilizer plots and phosphorus fertilizer plots increased with time. In the single-sown hairy vetch and mixed-sown hairy vetch and rye plot, the phosphorus balances in NF plot and NK fertilizer plot were very low, while those in the P fertilizer plot and NPK fertilizer plot were high. In conclusion, available phosphate contents in soil and the potato yields were increased by phosphorus fertilization when potatoes planted after cultivating hairy vetch and rye together, compared to hairy vetch alone.

목차

ABSTRACT
Introduction
Materials and Methods
Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2018-523-000984140