References
- Cho, B.O. 1999. Characterization of soil fertility and management practices of alpine soil under vegetable cultivations. Ph.D. Thesis, Kangwon National University, Chuncheon, Korea
- Choi, J.Y., and E.S. Shin. 1998. Management practices for nonpoint source control in agricultural area. Korea Environment Institute, Seoul, Korea
- Gormly, J.R., and R.F. Spadling. 1979. Sources and concentrations of nitrate- nitrogen in ground water of the Central Platte Region, Nebraska. Ground Water. 17:291-301 https://doi.org/10.1111/j.1745-6584.1979.tb03323.x
- Hauck R.D. 1982. Nitrogen isotope ratio analysis. pp. 735-779. In Page A.L., et al., ed. Methods of soil analysis. Part 2, (2nd ed.) ASA and SSSA, Madison, WI
- Huh, I.R., J.C. Shin, G.C. Oh, G.H. Lee, H.S. Shin, Y.G. Sin, J.Y. Choi, Y.J. Kim, and U.H. Jeong. 2001. Water environment characteristics and efficiency basin management of Song stream. Rep. Inst. Health & Environ. 12:73-85
- Joo, J.H., C.S. Park, Y.S. Jung, J.E. Yang, J.D. Choi, W.J. Lee, and S.I. Kim. 2004. Evaluation of the dressed soil applied in mountainous agricultural land. Korean J. Soil Sci. Fert. 37:245-250
-
Jung, K.H. 2001. Behavior of
$^{15}N$ laveled urea-N by fertigation and surface application in drip irrigation system. Ph.D. Thesis. Seoul National University, Suwon, Korea - Kang, B.K., and N.K. Cho. 2001. Move of applied fertilizers through volcanic ash soils in a lysimeter experiment. Journal of KoSSGE 6:3-12
- Komor, S.C., and H.W. Anderson Jr. Nitrogen isotopes as indicators of nitrate sources in Minnesota sand-plain aquifers. Ground Water. 31:260-270 https://doi.org/10.1111/j.1745-6584.1993.tb01818.x
- Lee, C.S., G.J. Lee, J.T. Lee, K.Y. Shin, J.H. Ahn, and H.J. Cho. 2002. Status of fertilizer applications in farmers' field for summer Chinese cabbage in highland. Korean J. Soil Sci. Fert. 37:66-73
-
Lee, S.M., and S.H. Yoo. 1994. A study on the behavior of surface applied urea with
$^{15}N$ isotope dilution technique in paddy soil. Agri. Chem. and Biotech. 37:277-286 - Mohammad, M.J. 2004. Utilization of applied fertilizer nitrogen and irrigation water by drip-fertigated squash as determined by nuclear and traditional techniques. Nutrient Cycling in Agroecosystems 68:1-11 https://doi.org/10.1023/B:FRES.0000012229.61906.6c
- Neilsen, D., P. Parchomchuk, G.H. Neilsen, and E.J. Hogue. 1998. Using soil solution monitoring to determine the effects of irrigation management and fertigation on nitrogen availability in high-density apple orchards. J. Amer. Soc. Hart. Sci. 123:706-713
- NIAST. 1992. Introduction to the soils of Korea. National Institute of Agricultural science and Technology, Suwon, Korea
- NIAST. 1999. Fertilizer application recommendations for crops. National Institute of Agricultural Science and Technology, Suwon, Korea
- NIAST. 2000. Methods of soil and crop plant analysis. National Institute of Agricultural Science and Technology, Suwon, Korea
- NIAST. 2000. Soil management practices in upland for environment conservation. National Institute of Agricultural Science and Technology, Suwon, Korea
- NIHA. 2002. Cultivation technology of vegetable crops in highland. National Institute of Highland Agriculture, Pyeongchang, Korea
- NIHA. 2004. The research report. pp. 578-582. National Institute of Highland Agriculture, Pyeongchang, Korea
- Park, C.S. 2002. Soil management practices to reduce water erosion from the sloped farmland in highland. Ph.D. Thesis, Kangwon National University, Chuncheon, Korea
- Park, C.S., Y.S. Jung, J.H. Joo, and J.E. Yang. 2004. Soil characteristics of the saprolite piled upland fields at highland in Gangwon province. Korean J. Soil Sci. Fert. 37:66-73
- Park, C.S., Y.S. Jung, J.H. Joo, and J.T. Lee. 2005. Best management practices reducing soil loss in the saprolite piled upland in Hongcheon highland. Korean J. Soil Sci. Fert. 38:119-126
- Selles, F., R.E. Karamanos, and R.G. Kachanoski. 1986. The spatial variability of nitrogen-15 and its relation to the availability of other soil properties. Soil Sci. Soc. Amer. J. 50:105-110 https://doi.org/10.2136/sssaj1986.03615995005000010020x
- Smith, S.J., J.S. Schepers, and L.K. Porter. 1990. Assessing and managing agticultural nitrgen losses to the environment. Advances in Soil Sci. 14:1-43
- Song, Y.S., H.K. Kwak, B.L. Huh, and S.E. Lee. 1996. Use efficiency of nitrate nitrogen accumulated in plastic film house soils under continuous vegetable cultivation. Korean J. Soil Sci. Fert. 29:347-352
- Wschmeier, W.H., and D.D. Smith. 1978. Predicting rainfall erosion losses - A guide to conservation planning. Agriculture Handbook No. 537. USDA
-
Yun, S.G., and S.H. Yoo. 1994. Behavior of N03-N and accompanying cations derived from urea under upland condition. I. Leaching of
$NO_{3}$ -N and accompanying cations. Korean J. Soil Sci. Fert. 27:15-20