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시설재배 부추 잎끝마름증 발생에 영향을 미치는 토양특성

Relationship Between Soil Properties and Tip Burn of Chinese Chive Cultivated in Plastic Film House

  • Seo, Young-Jin (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Choi, Young-Seub (Institute of Pohang Agricultural Extention Services) ;
  • Park, Jun-Hong (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Kweon, Tae-Young (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Choi, Seong-Yong (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Kim, Chan-Yong (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Kim, Jong-Su (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Park, So-Deuk (Institute of Gyeongsangbukdo Agricultural Research and Extention Services) ;
  • Park, Man (College of Agriculture and life science, kyungpook National University) ;
  • Jeon, Sang-Ho (National Institute of Agricultural Science and Technology, RDA) ;
  • Jang, Yong-Sun (National Institute of Agricultural Science and Technology, RDA) ;
  • Ha, Sang-Keun (National Institute of Agricultural Science and Technology, RDA)
  • 투고 : 2011.05.20
  • 심사 : 2011.06.07
  • 발행 : 2011.06.30

초록

시설재배 부추의 잎끝마름증상 발생에 영향을 미치는 인자를 구명하기 위하여 포항지역 부추 재배지 토양 132 개소의 토양특성을 분석하였고 통계적 방법으로 관련인자를 조사한 결과, pH는 7.0, 유기물함량 $41g\;kg^{-1}$로 적정 범위에 비해 높은 편이었으며 점토함량이 많은 식질토양인 Alfisols에서 pH, 치환성 양이온, 전기전도도, 질산태 질소함량이 높았고 잎끝마름증 발생비율이 높았으며 pH와 치환성 칼슘함량과 매우 높은 연관성을 나타내었다. pH가 높고 암모니아태 질소함량이 높을수록 암모니아 가스의 생성이 증가하였으며, 질산태질소와 토양유기물은 암모니아 가스 생성에 직접적인 영향은 없으나 토양의 pH 변화에 따라 질산태질소의 암모니아태 질소로 환원 및 유기태질소의 무기화에 따른 암모니아태 질소의 농도변화에 영향을 미치는 것으로 나타났다. 부추의 잎끝마름증은 토양 pH 변화에 따른 무기태질소의 환원에 따른 암모니아 가스생성에 따른 것으로 사료된다.

Tip burn has been reported as one of the most serious physiological disorder in Chinese chives (Allium tuberosum Rottl.) cultivated in plastic film house. In this study, a physiography and chemical properties of 132 plastic film house soils were investigated to elucidate factors affecting tip burn symptom. Also influence of soil properties on tip burn was statistically determined by path analysis and association analysis including a chi-square test or logistics analysis. Probability distribution of inorganic aqueous species, such as ammonia (g) was calculated using MINTEQ program. Soil order and chemical properties, especially pH, exchangeable calcium and inorganic nitrogen, showed a significant relationship with tip burn of Chinese chives. Tip burn symptoms occur mainly in an alkaline soil classified as Alfisols. Result of linear regression and path analysis exhibited that formation of ammonia (g) from soil solution depend upon soil pH and were associated with ammonium resulting from soil organic matter or nitrate. These results indicate that tip burn symptom of Chinese chives is directly affected by ammonia gas originated from alkaline soil condition.

키워드

참고문헌

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