DOI QR코드

DOI QR Code

노지재배 감자의 생육시기별 물 요구량 구명

Water Requirement of Potato According to Growth Stage

  • 투고 : 2012.07.27
  • 심사 : 2012.11.01
  • 발행 : 2012.12.31

초록

본 연구는 우리나라 1979년~2008년까지의 기후 데이터를 활용하여 우리나라 45개 지역을 대상으로 기후변화에 따른 감자의 물 요구량을 산정함으로서 기존의 연구결과를 수정보완하고 아울러 금후 국가 물 수급계획 수립의 기초자료로 활용코자 수행하였다. 노지 감자 생육기간 동안의 PET는 최소 부산의 $2.60mm\;day^{-1}$로부터 최대 대구의 $3.52mm\;day^{-1}$ 범위를 보였으며, 45개 지역에 대한 평균은 $2.95mm\;day^{-1}$ 이었다. 노지 감자의 생육기간 전체에 대한 평균 일 물 요구량(MWR : mm $day^{-1}$)은, 45지역의 전 생육기간 평균 $1.6mm\;day^{-1}$이었으며, 생육단계별 평균 일 물 요구량 (MWR)은 G-1, G-2, G-3 및 G-4 각각 1.0~1.2 (평균 1.1), 1.5~1.8 (평균 1.6), 1.9~2.2 및 1.7~2.1 (평균 1.8) mm $day^{-1}$이었다. 노지 감자의 생육기간 전체에 대한 평균 총 물 요구량 (TWR : mm $day^{-1}$)은, 45지역 평균 446.2 mm 이었으며, 생육단계별 평균 총 물 요구량 (TWR : mm $day^{-1}$)은 G-1, G-2, G-3 및 G-4 각각 18.0~22.1 (평균 19.3), 50.6~66.6 (평균 56.3), 63.5~88.2 (평균 72.4) 및 38.3~54.5 (평균 44.0) mm 이었다. 또한 MWR 과 TWR은 45지역 모두 G-3 생육단계에서 가장 많으며, 이는 G-3 생육단계의 대기증발요구량 (PET)과 작물계수 (Kc)가 타 생육기간 보다 높기 때문인 것으로 사료된다.

Water is the most important resource for the potato cultivation, especially to get the maximum water use efficiency and yield of potato, Water has to be applied moderately based on the water requirement of the potato. Crop water requirement (WR) is a function of the Potential evapo-transpiration(PET) and Crop coefficient (Kc). PET can be estimated by the climate data measured at the weather station in the production region. Kc was measured by the NIAST (RDA) through Lysimeter experiments. In this study, the growth stage of potato was divided as four (G-1 : Apr. 1~Apr. 15, G-2 : Apr. 16~May. 10, G-3 : May. 11~May. 31, G4 : Jun. 1~Jun. 15). The average PET during potato growing season of the 45 areas was $2.95mm\;day^{-1}$. The most water requirement was the G-3 stage among the potato growth stage. The MWR (Mean water requirement) according to growth stage was 1.0~1.2 (average 1.1), 1.5~1.8 (average 1.6), 1.9~2.2 (average 2.0) and 1.7~2.1 (average 1.8) mm $day^{-1}$, in the G-1, G-2, G-3 and G-4 stage, respectively. The TWR (Total water requirement) according to growth stage was 18.0~22.1 (average 19.3), 50.6~66.6 (average 56.3), 63.5~88.2 (average 72.4) and 38.3~54.5 (average 44) mm, in the G-1, G-2, G-3 and G-4 stage, respectively.

키워드

참고문헌

  1. Eom, K.C., P.K. Jung, M.H. Koh, S.H. Kim, S.Y. Yoo, S.H.P ark, S.O. Hur, and S.K. Ha. 2010. Water saving irrigation manual of spring chinese cabbage. Korean J. Soil Sci. Fert. 43(6):812-822.
  2. Eom, K.C., P.K. Jung, S.H. Choi, T.W. Kim, S.Y. Yoo, S.H. Park, and Y.K. Sonn. 2010. Water requirement of red pepper in different growth stages. Korean J. Soil Sci. Fert. 43(6):844-847.
  3. Eom, K.C., P.K. Jung, S.H. Choi, T.W. Kim, S.Y. Yoo, S.H. Park, S.O. Hur, and S.K. Ha. 2010. Water requirement of red pepper cultivated in house. Korean J. Soil Sci. Fert. 43(6):848-851.
  4. Eom, K.C., P.K. Jung, T.W. Kim, S.Y. Yoo, and S.H. Park. 2011. Development of the model to estimate potential evapotranspiration in Korea. Korean J. Soil Sci. Fert. 44(5):674-678. https://doi.org/10.7745/KJSSF.2011.44.5.674
  5. Eom, K.C. and S.H. Park. 2012. Water saving irrigation manual of house red pepeer for the north region of Korea. Korean J. Soil Sci. Fert. 45(2):312-316. https://doi.org/10.7745/KJSSF.2012.45.2.312
  6. Hegneym M.A and H.P. Hoffman. 1997. Potato irrigationdevelopment of irrigation scheduling guidelines. Final Report. Horticultural Research and Development Corporation Project NP. 6. Agriculture Western Australia.
  7. Jung, P.K., K.C. Eom, Y.K. Son, M.H. Koh, S.H. Kim, S.H. Park, and S.Y. Yoo, 2010. Water saving irrigation manual of autumn chinese cabbage. Korean J. Soil Sci. Fert. 43(5):679-687. https://doi.org/10.7745/KJSSF.2011.44.5.679
  8. Lim, J.N., 1988. Modeling of estimating soil moisture, evapotranspiration and yield of chinese cabbages from meterological data at different growth stages. Korean J. Soil Sci. Fert. 21(4):386-408.
  9. NIAST. 1996. Research Report. RDA, Korea.
  10. KSIS, 2011. Root and Tuber crops productions. (http://www.kosis.kr)

피인용 문헌

  1. Projection of Consumptive Use and Irrigation Water for Major Upland Crops using Soil Moisture Model under Climate Change vol.56, pp.5, 2014, https://doi.org/10.5389/KSAE.2014.56.5.077
  2. Climate Change Impacts on Agricultural Drought for Major Upland Crops using Soil Moisture Model -Focused on the Jeollanam-do- vol.57, pp.3, 2015, https://doi.org/10.5389/KSAE.2015.57.3.065