Inorganic Nutrient Uptake Pattern of Vegetable Crops in Highland

고랭지 주요 채소작물의 무기성분 흡수 특성

  • Lee, Jeong-Tae (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Lee, Gye-Jun (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Ryu, Jong-Soo (Highland Agriculture Research Center, National Institute of Crop Science, RDA) ;
  • Zhang, Yong-Seon (Department of Agricultural Environment, National Academy of Agriculture Science, RDA) ;
  • Hwang, Seon-Woong (Department of Rice and Winter Cereal Crop, National Institute of Crop Science, RDA) ;
  • Park, Chol-Soo (Natural Resources Research Institute, Korea Ginseng Co.)
  • 이정태 (국립식량과학원 고령지농업연구센터) ;
  • 이계준 (국립식량과학원 고령지농업연구센터) ;
  • 류종수 (국립식량과학원 고령지농업연구센터) ;
  • 장용선 (국립농업과학원 농업환경부) ;
  • 황선웅 (국립식량과학원 벼맥류부) ;
  • 박철수 (한국인삼공사 R&D 본부 연구원)
  • Received : 2010.08.31
  • Accepted : 2010.10.18
  • Published : 2010.10.30

Abstract

Plant samples from 49 sites for Chinese cabbage, 28 sites for radish, 16 sites for cabbage, 8 sites for head lettuce, 20 sites for onion from farmers' and experimental fields in highland of Korea were collected and analyzed to find out the uptake patterns of nitrogen (N), phosphorus (P) and potassium (K) by altitude. Dry weight and uptake of N, P and K were increased at higher altitude in most vegetable crops. Nutrition uptake by Chinese cabbage was 163 ~ 283 kg $ha^{-1}$ for N, 42 ~ 69 kg $ha^{-1}$ for $P_2O_5$ and 146 ~ 270 kg $ha^{-1}$ for $K_2O$ according to altitude. Nutrient uptake by radish according to altitude was 153~159 kg $ha^{-1}$ for N, 38 ~ 46 kg $ha^{-1}$ for $P_2O_5$, and 151 ~ 185 kg $ha^{-1}$ for $K_2O$. In case of cabbage, the plant uptakes of N, P, and K were increased at altitudes of 600 ~ 1,000 m. Nutrient uptake of cabbage was 280 ~ 348 kg $ha^{-1}$ for N, 34 ~ 87 kg $ha^{-1}$ for $P_2O_5$, and 209 ~ 290 kg $ha^{-1}$ for $K_2O$ according to altitude. Uptakes of N-$P_2O_5-K_2O$ by head lettuce at an altitude of 800 ~ 850 m were 93-26-126 kg $ha^{-1}$, respectively. Uptakes of N-$P_2O_5-K_2O$ by onions at an altitude of 600 ~ 800 m were 313-140-234 kg $ha^{-1}$, respectively, but there was no tendency in nutrition uptake patterns by altitude. Small cultivation areas used for leaf vegetable crops do not have fertilizer recommendation standards in alpine regions. It might be preferable to use a correction factor equivalent to the index of available nutrient uptake for the determination of N, P and K fertilizer application rates.

고랭지 주요 채소에 대하여 일반 농가포장과 시험재배 포장을 대상으로 배추 49지점, 무 28지점, 양배추 16지점, 결구상추 8지점, 양파 20지점, 기타 대파, 적채 등 11 지점의 식물체 시료를 생육시기별로 채취하여 표고에 따른 질소, 인산 및 칼리 양분의 흡수양상을 조사하였다. 고랭지 여름배추의 무기성분 흡수량은 표고가 높을수록 증가하는 경향을 보였는데, ha당 수확기 흡수량은 N163~283 kg, $P_2O_5$ 42~71 kg, $K_2O$ 146~270 kg 수준을 보였다. 고랭지 무의 경우도 표고가 높은 600~800 m에서 증가되는 경향으로, ha당 수확기 흡수량을 보면 N153~159 kg, $P_2O_5$ 38~46 kg, $K_2O$ 151~185 kg 수준이었다. 기타 고랭지 양배추와 결구상추도 표고가 높을수록 양분흡수량이 증가하는 경향을 보였는데, 양배추의 ha당 수확기 흡수량은 N 280~348 kg, $P_2O_5$ 34~87 kg, $K_2O$ 209~290 kg이었으며, 고랭지 결구상추의 경우 ha당 N 66~93 kg, $P_2O_5$ 21~26 kg, $K_2O$ 117~126 kg 수준을 보였다. 고랭지 양파의 ha당 무기성분 흡수량은 N 226~313 kg, $P_2O_5$ 136~140 kg, $K_2O$ 234~252 kg 수준으로 표고에 따른 일정 경향은 없었다. 기타 지금까지 시비추천 기준이 설정되어 있지 않은 대파, 양미나리, 녹색꽃양배추, 적색양배추 등 소면적 재배작물의 양분흡수량을 조사하여 기존 양분흡수량 보정계수 (시비기준이 설정된 유사작물의 시비추천식 적용) 활용으로 시비추천기준의 설정이 가능하였다.

Keywords

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