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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Studies on the Quality and Productivity Improvement by Mixed Sowing of Oat-Hairy Vetch

연맥-헤어리베치 혼파에 의한 사료가치 및 생산성 향상 연구

  • Kim, J.G. (National Livestock Research Institute, RDA) ;
  • Chung, E.S. (National Livestock Research Institute, RDA) ;
  • Yoon, S.H. (National Livestock Research Institute, RDA) ;
  • Seo, S. (National Livestock Research Institute, RDA) ;
  • Seo, J.H. (National Agriculture Experimental Station, RDA) ;
  • Park, G.J. (National Livestock Research Institute, RDA) ;
  • Kim, C.K. (National Agriculture Experimental Station, RDA)
  • Published : 2002.03.01
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Abstract

The yield and quality of winter forage crops such as oats could increase by mixed sowing with a winter legume such as hairy vetch(Vicia villosa Roth). The purpose of this study was to improve the forage quality and productivity using Oat-Hairy vetch mixture in winter season for three years. The results of this experiments were summarized as follows. In mix seeding of oat and hairy vetch, the dry matter(DM) content of herbage was 15∼16% in fall-harvest and 19∼20% in spring-harvest. Crude protein(CP) content of hairy vetch was the highest as 30.1% and the mixture was higher than that of oat. Acid detergent fiber(ADF) and neutral detergent fiber(NDF) content of hairy vetch was lower, but in vitro dry matter digestibility(IVDMD) and total dry matter digestibility(TDN) content was higher than that of oat. Although oat showed the low yield by 3.7∼4.4 DM t/ha, the Fall-seeded-Spring-harvest hairy vetch plot showed highly production by 9.5 DM t/ha. Crude protein and TDN yield of Fall-seeded-Spring-harvest plots were higher than those of others. According to this study, the highest dry matter yield could be obtained by Fall-seeded-Spring-harvest. It would be recommend in cropping field for oat.

본 연구는 동계 사료작물의 사료가치와 생산성을 높이기 위한 목적으로 겨울철에 일년생 두과작물 헤어리베치와 연맥을 3년간('99∼'01) 혼파 재배하였는데 도출된 결과를 요약하면 다음과 같다. 연맥과 헤어리베치의 혼파재배시 연맥과 헤어리베치의 출수기 및 개화기 등 생육은 큰 차이가 없었다. 사료가치를 보면 건물함량이 가을수확에서 15∼16%, 봄 수확에서 19∼20% 였고 조단백질 함량은 헤어리베치 단파시 30.1%로 가장 높았는데 연맥과 헤어리베치를 혼파했을 때는 연맥 단파보다 조단백질 함량이 높아졌다. ADF, NDF, 건물소화율 및 TDN 함량 등도 연맥단파보다 연맥+헤어리베치 혼파시 더욱 양호한 것으로 나타났다. 건물 수량은 연맥 단파구에서 3.7∼4.4톤/ha를 얻을 수 있으나 가을에 연맥과 헤어리베치를 혼파할 경우는 가을에 일차적으로 수확하여 사초로 이용하고 이듬해 봄에 재생한 헤어리베치를 또한 사료로 이용할 수가 있어 전체 약 9.5톤/ha 이상의 사초 건물수량을 얻을 수 있었고 이 때 조단백질 수량 및 TDN 수량도 가장 높게 나타났다. 따라서 기존의 가을에 연맥을 단파하는 것보다 연맥의 파종시 헤어리베치를 혼파하여 파종하는 것이 사초수량 뿐만 아니라 사료의 가치를 높일 수 있어 바람직하였다.

Keywords

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