한국초지조사료학회지 (Journal of The Korean Society of Grassland and Forage Science)

  • 제37권2호
  • /
  • Pages.132-139
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  • 2017
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  • 2287-5824(pISSN)
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  • 2287-5832(eISSN)
한국초지조사료학회 (The Korean Society of Grassland and Forage Science)
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중부지역 부실 산지초지에서 국내육성 신품종 목초 이용 혼파조합이 식생구성 및 건물생산성에 미치는 영향

The Effects of Grass Seed Mixtures using Domestic Cultivars on Botanical Composition and Dry Matter Productivity in Low Productive Hilly Pasture, Central Region of Korea

  • 정종성 (농촌진흥청 국립축산과학원) ;
  • 김종근 (서울대학교 국제농업기술대학원) ;
  • 김현섭 (농촌진흥청 국립축산과학원) ;
  • 박형수 (농촌진흥청 국립축산과학원) ;
  • 최기춘 (농촌진흥청 국립축산과학원) ;
  • 이상훈 (농촌진흥청 국립축산과학원) ;
  • 지희정 (농촌진흥청 국립축산과학원) ;
  • 최기준 (농촌진흥청 국립축산과학원) ;
  • 김원호 (농촌진흥청 국립축산과학원)
  • Jung, Jeong Sung (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Jong Geun (Graduate School of International Agricultural Technology, Seoul National University) ;
  • Kim, Hyeon Shup (National Institute of Animal Science, Rural Development Administration) ;
  • Park, Hyung Soo (National Institute of Animal Science, Rural Development Administration) ;
  • Choi, Ki Choon (National Institute of Animal Science, Rural Development Administration) ;
  • Lee, Sang Hoon (National Institute of Animal Science, Rural Development Administration) ;
  • Ji, Hee Jung (National Institute of Animal Science, Rural Development Administration) ;
  • Choi, Gi Jun (National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Won Ho (National Institute of Animal Science, Rural Development Administration)
  • 투고 : 2017.03.28
  • 심사 : 2017.06.09
  • 발행 : 2017.06.30
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초록

본 연구는 부실 산지초지에서 국내육성 품종을 이용한 혼파조합이 초지의 연차별 식생 및 생산성에 미치는 영향을 구명하고 중부지역 산지초지 갱신에 적합한 혼파조합을 선발하고자 2013년 8월부터 2016년 11월까지 서산시 농협중앙회 한우개량사업소의 경사초지에서 수행되었다. 대상지는 pH가 산성이었고 유기물의 함량은 높았으며, 애기수영 및 고사리 등이 일부 우점되어 있는 중급정도의 초지였다. 초기생육은 전체적으로 고르게 출현되었고 월동 후 초장은 5~6cm, 분얼은 3~5개 정도로 양호하였지만 목초 식생비율이 66~75%로 악성잡초로 인하여 목초 정착이 불량한 부분이 발견되었다. 초지식생변화를 살펴보면 대조구는 목초 및 잡초의 식생비율변화 폭이 크지 않았으며 여름철 잡초의 비율이 상대적으로 높아지는 경향을 보였다. Tall fescue 위주 혼파조합을 부실초지에 보파한 결과 목초 비율이 80%정도까지 증가하여 대조구 대비 우수한 식생을 보였다. 조성 초기에는 orchardgrass비율이 높았지만 3년차(2016) 부터는 tall fescue비율이 증가하였고 상대적으로 orchardgrass의 비율이 낮아지는 것을 확인하였다. Orchardgrass 'Kordione'과 Orchardgrass 'Onnuri'위주 혼파조합은 유사한 식생비율 변화를 보였으며 부실초지에 보파한 결과 목초 비율이 80%정도까지 증가하여 우수한 식생을 보였고 봄철에 비율이 가장 높게 나타났고 연차가 지속될수록 하번초인 Kentucky bluegrass의 비율이 점차 증가하는 경향을 보였다. 수량성에서 tall fescue(Greenmaster)위주 혼파조합은 3년차에서 tall fescue가 안정적으로 정착하면서 대조구 및 orchardgrass(Kordione, Onnuri)위주 혼파조합 보다 잡초침입 없이 상대적으로 높은 수량을 보였다. 연차별로 보면 2년차에서 대조구를 제외한 모든 시험구에서 수량이 가장 높았으며 3년차 때 대조구와 tall fescue위주 혼파조합은 변화가 크지 않았지만 orchardgrass위주 혼파조합의 수량은 크게 감소하였다. 본 연구를 종합해보면 중부지역에서 부실초지를 갱신하기 위한 가장 좋은 혼파조합은 tall fescue(Greenmaster)위주 혼파조합이었지만 orchardgrass(Kordione, Onnuri)위주 혼파조합의 경우 조성 후 2년차가 넘어가면서 수량감소가 나타나기 때문에 2년차 때 목초를 보파해준다면 우수한 식생을 유지할 수 있을 것으로 보인다.

This study was conducted to find out the effects of over seeding using new grass varieties orchardgrass 'Kordione' and 'Onnuri', and tall fescue 'Greenmaster' on botanical composition and dry matter productivity from 2013 to 2016 in low productivity hilly pasture, middle area of Korea. There were used 3 grass seed mixture types made of different compositions and amounts {T1: control - no over seeding, T2: tall fescue (TF) 'Greenmaster' $18kg\;ha^{-1}$, orchardgrass (OG) 'Kordione' $9kg\;ha^{-1}$, Perennial ryegrass (PRG) 'Linn' $5kg\;ha^{-1}$, and Kentucky bluegrass (KBG) 'Kenblue' $2kg\;ha^{-1}$, T3: TF 'Greenmaster' $9kg\;ha^{-1}$, OG 'Kordione' $18kg\;ha^{-1}$, PRG 'Linn' $5kg\;ha^{-1}$, and KBG ' Kenblue' $2kg\;ha^{-1}$, T4: TF 'Greenmaster' $9kg\;ha^{-1}$, OG 'Onnuri' $18kg\;ha^{-1}$, PRG 'Linn' $5kg\;ha^{-1}$, and KBG 'Kenblue' $2kg\;ha^{-1}$}. In the botanical composition of grassland, T1 nearly remained constant in other seasons while ratio of weeds were increased in summer season. T2 was better than control (T1) in portion of grass ratio, which has increased by 80%. In the early time of establishment, the portions of OG were increased in T2, but TF rate was increased after 3 years later when grass was established. T3 and T4 showed a very similar patterns, grass ratio had increased by 80% and the portion of KBG had increased as time passed. T2 ($129,763kg\;ha^{-1}$) was showed the highest dry matter yield than other treatments (T1: $6,756kg\;ha^{-1}$, T3: 9641, and T4: 10,738) in 2016.

키워드

참고문헌

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피인용 문헌

  1. Effect of Forage Species, Mixed Pastures and Mesh on Forage Yields and Botanical Composition for Rapid Establishment of Grassland at Cutting Area in Middle Region of Korea vol.38, pp.1, 2018, https://doi.org/10.5333/KGFS.2018.38.1.61
  2. The Effect of Seeding Dates on Productivity and Botanical Composition in Oversown Hilly Pasture of mixed grass, Pyeongchang of South Korea vol.38, pp.4, 2018, https://doi.org/10.5333/KGFS.2018.38.4.217
  3. A Study on the Utilization of Horse grazing in the Renewal Pasture of Low Productive Pasture vol.38, pp.4, 2018, https://doi.org/10.5333/KGFS.2018.38.4.243
  4. A Study on the Improvement of Pasture Productivity in a horse grazing low productive pasture vol.38, pp.4, 2018, https://doi.org/10.5333/KGFS.2018.38.4.266