Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effects of Green Manure Cropping on Soil Biomass-C and Soil Fertility in Green House Soil

시설 하우스 토양에서 녹비작물 재배가 Biomass-C와 양분변화에 미치는 영향

  • 이병진 (경남과학기술대학교 농학.한약자원학부) ;
  • 윤태현 (경남 밀양시 농업기술센터) ;
  • 조우태 (경남 경남귀농연합회) ;
  • 전현식 (경남과학기술대학교 농학.한약자원학부) ;
  • 조영손 (경남과학기술대학교 농학.한약자원학부)
  • Received : 2013.09.03
  • Accepted : 2013.09.23
  • Published : 2013.12.31
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Abstract

This experiment was done to evaluate the effects of green manure cropping in green house soil on the changes of soil nutrients and soil microorganisms. The biomass of green manure crop was the highest in ryegrass and nitrogen absorption was the highest in hairy vetch. After cropping, soil phosphate content was the lowest in ryegrass, however, biomass C was the highest of all the green manures. Nitrogen uptake of plant and nitrogen content of the soil after the experiment showed a negative correlation. Total N content of soil was increased in hairy vetch plot, but decreasing tendency showed in the ryegrass and common crabgrass plots. In this results are summarized that green manure cropping greatly reduced salt accumulation in green house.

시설재배지 토양에 녹비작물의 재배가 Biomass-C와 토양 양분의 변화에 미치는 영향을 평가하고자 pot(${\phi}$10-cm)에 헤어리벳치, 호밀, 발랭이를 70일간 재배 후 식물체와 토양을 분리하여 분석한 결과가 다음과 같다. 녹비작물의 생육량은 호밀이 가장 많았으며, 질수흡수량은 헤어리벳치가 가장 높게 나타났다. 호밀 재배구가 토양의 인산함량은 가장 낮았으며, biomass C는 가장 높게 나타났다. 시험 후 토양의 질소함량과 식물체 질소 흡수량은 고도의 부의 상관을 보였다. T-N 함량은 헤어리벳치 시험구에서는 증가하였지만, 호밀과 바랭이 재배구에서는 감소하는 경향을 보였다. 이상의 결과를 요약해볼 때 시설재배지에서 가장 중요한 것이 토양의 염류집적(EC) 인데 시험 후 토양에서 대조구에 비해서 콩과인 헤어리벳치는 EC가 약간 증가했고 다른 무기성분은 큰 변화가 없으며, 화본과인 호밀은 EC와 다른 무기성분도 약간 감소하는 경향으로 시설연작재배지에서는 화본과 작물이 염류집적 경감을 위해서 유리하다.

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