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돈분액비를 시용한 녹비보리 및 헤어리베치의 혼입시기가 벼 수량에 미치는 영향

Effect of Incorporation Times of Green Barley and Hairy Vetch on Rice Yield in Paddy Soil with Liquid Pig Manure

  • 강세원 (순천대학교 생물환경학과) ;
  • 서동철 (순천대학교 생물환경학과) ;
  • 이상규 (순천대학교 생물환경학과) ;
  • 서영진 (순천대학교 생물환경학과) ;
  • 박주왕 (순천대학교 생물환경학과) ;
  • 유진희 (농촌진흥청 국립식량과학원) ;
  • 김민태 (농촌진흥청 국립식량과학원) ;
  • 강항원 (농촌진흥청 국립식량과학원) ;
  • 허종수 (경상대학교 응용생명과학부(BK21 농업생명산업 글로벌 인재 육성 사업단) & 농업생명과학원) ;
  • 조주식 (순천대학교 생물환경학과)
  • Kang, Se-Won (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Seo, Dong-Cheol (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Lee, Sang-Gyu (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Seo, Young-Jin (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Park, Ju-Wang (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Ryu, Jin-Hee (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Min-Tae (National Institute of Crop Science, Rural Development Administration) ;
  • Kang, Hang-Won (National Institute of Crop Science, Rural Development Administration) ;
  • Heo, Jong-Soo (Division of Applied Life Science(BK21 program) & Institute of Agriculture and Life Science, Gyeongsang National University) ;
  • Cho, Ju-Sik (Department of Bio-Environmental Sciences, Sunchon National University)
  • 투고 : 2013.10.01
  • 심사 : 2013.10.14
  • 발행 : 2013.12.31

초록

본 시험은 녹비작물의 토양 혼입시기가 벼의 수량에 미치는 영향을 조사하기 위하여 녹비작물을 벼 이앙 25일전, 18일전 및 11일전에 각각 혼입하였으며, 혼입시기별 녹비보리 및 헤어리베치의 biomass와 무기성분 함량 및 양분공급량을 조사하였고, 각각의 처리구에서 벼의 수량을 조사하였다. 녹비보리 및 헤어리베치의 biomass는 토양으로의 혼입이 늦어질수록 biomass는 증가하였고, T-N, T-P 및 $K_2O$의 함량은 점차 감소하는 경향이었지만 그 차이는 미미하였다. 녹비보리 및 헤어리베치의 N, $P_2O_5$$K_2O$의 공급량은 다소 차이는 있지만 전반적으로 5월 20일에 혼입한 LPM3 처리구에서 가장 많았다. 벼의 간장, 수장 및 이삭수는 녹비작물의 혼입시기별 처리구에 상관없이 비슷한 경향으로 control 처리구에 비해 생육이 좋았지만, 녹비작물의 토양 혼입시기에 따른 유의성은 없었다. 벼의 총립수, 천립중 및 수량은 control 처리구에 비해 녹비보리 및 헤어리베치 처리구에서 많았으며, 토양 혼입시기에 상관없이 벼의 수량은 control 처리구 대비 녹비보리 혼입 처리구에서 2~3%, 헤어리베치 혼입 처리구에서 4~5%의 증수효과를 보였다.

BACKGROUND: Soil incorporation of green manure crop(GMC) and liquid pig manure(LPM) is one of the methods for reduction of chemical fertilizer and the increase of crop yield. The objective of this study was to select optimal incorporation time of GMCs on growth and nutrient property in paddy soil treated LPM. METHODS AND RESULTS: The kinds of GMCs were Hordeum vulgare L.(green barley, GB) and Vicia villosa roth(hairy vetch, HV). The effects of GMCs on rice yield were investigated under different incorporation times of GMCs(LPM1: at 25 days before rice transplantation, LPM2: at 18 days before rice transplantation, LPM3: at 11 days before rice transplantation). In GB treatments, the biomass was greater in the order of $$LPM3{\geq_-}LPM2{\geq_-}LPM1$$. Contents of N, P and K ranged 1.21~1.28, 0.36~0.38 and 1.41~1.45%, respectively, regardless of incorporation times. The amounts of nutrient supply in GB treatments were higher in LPM1 than those in other treatment conditions. In GB treatments, rice yields in LPM1, LPM2 and LPM3 were 523, 525 and 526(increasing yield 3% than control) kg/10a, respectively. In HV treatments, the amounts of nutrient supply were higher in the order of $$LPM3{\geq_-}LPM2{\geq_-}LPM1$$. Rice yields were 530 kg/10a for LPM1, 531 kg/10a for LPM2, 535 (increasing yield 5% than control) kg/10a for LPM3 in HV treatments, respectively. CONCLUSION(s): The optimum incorporation time of green barley and hairy vetch was at 11 days before rice transplantation(LPM3) in paddy soil with liquid pig manure.

키워드

참고문헌

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