유기물자원화 (Journal of the Korea Organic Resources Recycling Association)

  • 제25권3호
  • /
  • Pages.13-21
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  • 2017
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  • 1225-6498(pISSN)
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  • 2508-3015(eISSN)
유기성자원학회 (Korea Organic Resources Recycling Association)
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유기농 오이재배를 위한 어분액비 공급이 토양특성 및 오이 수량에 미치는 영향

Effect of Fish Meal Liquid Fertilizer Application on Soil Characteristics and Growth of Cucumber(Cucumis sativus L.) for Organic Culture

  • 안난희 (농촌진흥청 국립농업과학원) ;
  • 조정래 (농촌진흥청 국립농업과학원) ;
  • 구자선 (농촌진흥청 국립농업과학원) ;
  • 김용기 (농촌진흥청 국립농업과학원) ;
  • 한은정 (농촌진흥청 국립농업과학원)
  • An, Nan-Hee (National Institute of Agricultural Science, Rural Development Administration) ;
  • Cho, Jung-Rai (National Institute of Agricultural Science, Rural Development Administration) ;
  • Gu, Ja-Sun (National Institute of Agricultural Science, Rural Development Administration) ;
  • Kim, Young-ki (National Institute of Agricultural Science, Rural Development Administration) ;
  • Han, Eun-Jung (National Institute of Agricultural Science, Rural Development Administration)
  • 투고 : 2017.06.12
  • 심사 : 2017.07.24
  • 발행 : 2017.09.30
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초록

본 연구는 유기농 오이 재배를 위하여 어분액비를 웃거름으로 공급할 경우 오이 생육과 토양환경에 미치는 영향을 검토하여 양분공급원으로 활용하고자 수행하였다. 시험구 처리는 무시비, 액비 무처리, 액비 처리농도에 따라 100, 50, 25 mg/L 처리구, 화학비료 처리 등 6처리를 두었다. 주요 조사항목은 어분액비처리에 의한 오이 생육, 수량, 토양 화학성, 그리고 토양미생물 군집 변화를 조사하였다. 어분액비 처리에 의한 토양 화학성 변화를 살펴본 결과, 어분액비 100 mg/L 처리는 다른 처리구와 비교하여 pH와 치환성 양이온 칼륨, 마그네슘 함량이 뚜렷하게 낮아지는 결과를 나타냈다. 또한 Biolog을 이용하여 토양미생물 군집의 기능적 다양성을 분석한 결과, 토양미생물 군집의 기질 이용도는 액비처리, 화학비료구, 무비구가 각각 1.57~1.63, 1.5, 1.3으로 액비처리와 화학비료구가 무비구에 비해 높았지만 액비 처리 수준별 차이는 나타나지 않았다. 액비처리에 의한 오이 생육을 비교한 결과, 액비처리 농도별 오이 초장과 과실의 생체중 및 건물중은 통계적 유의차는 없었으며 잎과 줄기의 생체중과 건물중은 어분액비 100 mg/L 처리 시 통계적 유의차를 나타냈다. 오이 수량은 액비처리 수준별 차이는 없었으며 어분액비 처리와 화학비료 처리간에 비교하더라도 차이를 나타내지 않았다. 따라서 어분액비와 화학비료 처리에 대한 오이의 생육과 수량을 비교한 결과, 수량과 생육에 큰 차이를 나타내지 않아 어분액비는 유기농업에서 웃거름으로 활용 가능 할 것으로 판단되었다.

This study was carried out to evaluate the application effects of fish meal liquid fertilizer on soil characteristics and growth of cucumber for organic cultivation. Cucumber in greenhouse was transplanted on March $31^{th}$ in 2016, and the experimental treatments involve six treatments: No fertilizer, 0, 25, 50, and 100 mg/L N application by fish meal liquid fertilizer and chemical fertilizer. In the results of soil chemical property, application of 100 mg/L of fish meal liquid fertilizer showed a significant differences in pH, K, and Mg contents. The soil microbial community varied in relation to the fish meal liquid fertilizer treatments. Microbial biomass was lower in the chemical fertilizer than in the liquid fertilizer treatment. Result of principal component analysis obtained from Ecoplate showed that fish meal liquid fertilizer treatments, no liquid fertilizer, chemical fertilizer, and no fertilizer were divided into distinct groups, with the no fertilizer treatment located furthest from the other treatments. There were no significant differences in plant height of cucumber between the fish meal liquid fertilizer treatments and chemical fertilizer treatments. Also, the cucumber yield did not vary significantly between the concentrations of liquid fertilizers, and there were also no significant differences in the yield among the fish meal liquid and chemical fertilizer treatments. In conclusion, it is suggested that the application of fish meal liquid fertilizer can be used as a additional fertilizer for cucumber production with organic culture in greenhouse.

키워드

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