Weed & Turfgrass Science

  • 제1권4호
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  • Pages.38-43
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  • 2012
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  • 2287-7924(pISSN)
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  • 2288-3312(eISSN)
한국잡초학회 & 한국잔디학회 (The Korean Society of Weed Science & The Turfgrass Society of Korea Archive)
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친환경 고추밭 바랭이와 가는털비름 발생밀도에 따른 고추 수량 반응

Yield Response of Red Pepper by Densities of D. ciliaris and A. patulus in Eco-firendly Cultivated Field

  • 원종건 (경상북도 농업기술원 영양고추시험장) ;
  • 장길수 (경상북도 농업기술원 영양고추시험장) ;
  • 황지은 (경상북도 농업기술원 영양고추시험장) ;
  • 권오훈 (경상북도 농업기술원 영양고추시험장) ;
  • 권태영 (경상북도 농업기술원 영양고추시험장) ;
  • 문병철 (농촌진흥청 국립농업과학원)
  • Won, Jong-Gun (Gyeongbuk Agricultural Research & Extension Services, Youngyang Pepper Experiment Station) ;
  • Jang, Kil-Su (Gyeongbuk Agricultural Research & Extension Services, Youngyang Pepper Experiment Station) ;
  • Hwang, Ji-Eun (Gyeongbuk Agricultural Research & Extension Services, Youngyang Pepper Experiment Station) ;
  • Kwon, Oh-Hun (Gyeongbuk Agricultural Research & Extension Services, Youngyang Pepper Experiment Station) ;
  • Kwon, Tae-Young (Gyeongbuk Agricultural Research & Extension Services, Youngyang Pepper Experiment Station) ;
  • Moon, Byeong-Chul (National Academy of Agricultural Science, RDA)
  • 투고 : 2012.11.06
  • 심사 : 2012.11.21
  • 발행 : 2012.12.31
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초록

2011년 경상북도 농업기술원 영양고추시험장 고추 친환경 재배포장에서 밭 잡초로 가장 문제시 되고 있는 잡초 중 바랭이와 가는털비름을 대상으로 잡초 밀도별 고추와의 경합력을 구명하고 Rectangular hyperbola 모델을 기초로 잡초의 밀도에 따른 건고추 수량 감소를 예측하여 경제적인 방제 필요수준을 구명하였다. 잡초를 완전 방제 했을 경우를 가상한 건고추 수량은 바랭이에서 10a당 304.7 kg으로 가는털비름의 281.3 kg보다 다소 높았으며, 고추와 잡초의 경합력은 바랭이에서 0.063으로 가는털비름의 0.1723 보다 낮았고, 수량 예측식은 바랭이가 y=304.7 kg/(1+0.063x), $R^2$=0.967, 가는털비름이 y=281.3 kg/(1+0.1723x), $R^2$=0.952로 나타났다. 제초제 구입 비용을 10a당 6,500원, 제초제 살포 인건비를 20,000원, 건고추의 가격을 kg당 8,000원, 제초제 방제가 95%로 적용하여 구한 경제적 피해 한계 밀도는 잡초 완전 방제시 수량이 10a당 304.7 kg이고 잡초 1본당 수량 감수 정도가 0.063인 바랭이는 $100m^2$당 18.2본, 잡초 완전 방제시 수량이 281.3 kg이고 잡초 1본 당 수량 감수 정도가 0.1723인 가는털비름은 $100m^2$당 7.2본이었다.

This study was conducted to predict the yield response of red pepper and to determine the economic weed threshold levels for red pepper cultivation field from competition with the most serious weeds, Amaranthus patulus and Digitaria ciliaris in Youngyang of Korea. Crop yield as a function of weed density was predicted by using a rectangular hyperbola, and their economic threshold levels were determined by using the equation developed by Cousens (1987). The red pepper yield loss models of weeds were predicted as y=304.7/(1+0.063x), $R^2$=0.967 in D. ciliaris and y=281.3/(1+0.1723x), $R^2$=0.952 in A. patulus. Economic thresholds calculated using Cousens' equation were negatively related with the competitiveness of weed. Economic thresholds of each weed were calculated as 18.2 plant $100m^{-2}$ in D ciliaris, and 7.2 plant $100m^{-2}$ in A. patulus.

키워드

참고문헌

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피인용 문헌

  1. Occurrence and Distribution of Weeds on Upland Crop Fields in Chungbuk Province of Korea vol.4, pp.3, 2015, https://doi.org/10.5660/WTS.2015.4.3.209
  2. Study for Sequential Application of Herbicide to Establish an Efficient Weed Control in Red Pepper Field vol.5, pp.4, 2016, https://doi.org/10.5660/WTS.2016.5.4.213
  3. Predicting the Potential Habitat and Risk Assessment of Amaranthus patulus using MaxEnt vol.36, pp.4, 2018, https://doi.org/10.11626/KJEB.2018.36.4.672