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

  • 제43권2호
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  • Pages.88-94
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  • 2023
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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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이탈리안 라이그라스의 단파 및 혼파 재배가 건물수량 및 사료가치에 미치는 영향

Effect of Monoculture and Mixtures on Dry Matter Yield and Feed Value of Italian Ryegrass (Lolium Multiflorum Lam.)

  • Jeong Sung Jung (National Institute of Animal Science, RDA) ;
  • Bo Ram Choi (National Institute of Animal Science, RDA) ;
  • Ouk Kyu Han (Department of Crop Science, Korea National College of Agriculture and Fisheries) ;
  • Bae Hun Lee (National Institute of Animal Science, RDA) ;
  • Ki Choon Choi (National Institute of Animal Science, RDA)
  • 투고 : 2023.06.21
  • 심사 : 2023.06.28
  • 발행 : 2023.06.30
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초록

본 연구는 이탈리안 라이그라스(IRG)를 단파 및 혼파에 따라 건물수량의 차이를 비교 분석하여 이상기상 발생 시 적합한 품종을 추천하기 위하여 실시하였다. 천안의 평균온도와 천안의 30년 간 평균온도는 비슷한 경향이었으나, 11월과 3월은 이상기상으로 판단된다. IRG 품종은 Green Fram(GF, 극조생), Kowinearly(KE, 조생), Kowinmaster(KM, 중생), Hwasan 104(H104, 만생)로 단파 또는 혼파하였다. GF 출수 기준으로 수확 시 GF+H104의 건물수량이 유의적으로 가장 높게 나타났다(p<0.05). KE와 KM 출수기준으로 수확 시 KE 및 KE+KM의 건물수량이 유의적으로 높게 나타났다. H104 출수기준으로 수확 시 건물수량은 처리간에 유의적인 차이는 없었으나(p>0.05). KM이 16,763.1 kg/ha로 가장 높았다. IRG 수확시기의 건물수량을 비교하였을 때 KE, KM의 단파 및 혼파에서 가장 높았다. 최근 봄 가뭄 등 이상기상의 발생 빈도가 높아지고 있으므로 이상기상에 대비하기 위하여 조생 및 중생을 이용한 IRG 혼파재배가 필요한 것으로 판단된다.

This study was conducted to analyze and compare the dry matter yield of Italian ryegrass (IRG) cultivated under monoculture and mixed culture system to recommend suitable varieties that can be cultivated. Italian ryegrass cultivars, Green Fram (GF, extremely early-maturing), Kowinearly (KE, early-maturing), Kowinmaster (KM, mild-maturing), and Hwasan 104 (H104, late-maturing), were used for mono or mixed cultivation. The average monthly temperature in Cheonan over the past 30 years tended to be similar, but that in November and March are judged to be abnormal weather. The dry matter yield of GF+H104 was significantly higher during harvest than that of GF (p<0.05). The dry matter yields of KE and KE+KM were significantly higher during harvest than the output standards of KE and KM. There was no significant difference between the dry matter yield of H104 and KM (p>0.05), but KM had the highest yield of 16,763.1 kg/ha. Analysis showed that the highest dry matter yield during IRG harvest was obtained under monoculture and KE+KM mixed culture. Because the occurrence frequency of abnormal weather such as drought during spring is increasing recently, it is judged that IRG cultivation using early and middle growth is necessary to prepare for abnormal weather.

키워드

과제정보

본 연구는 농촌진흥청 연구사업(연구과제명 : 논에서 사료작물 및 자생 사료자원을 이용한 작부체계 기술 개발 (과제번호 : PJ01499601) 지원에 의해 연구되었다.

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