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Comparison of Growth Characteristics and Forage Productivity Between Italian Ryegrass and Oats Sown in Early Spring

춘파재배시 이탈리안 라이그라스와 귀리의 생육특성 및 생산성 비교

  • Received : 2011.03.21
  • Accepted : 2011.05.11
  • Published : 2011.06.30

Abstract

This experiment was carried out to compare the growth characteristics and forage productivity between Italian ryegrass (Lolium multiflorum Lam.) and Oats (Avena sativa L.) sown in early spring on trial field of Grassland and Forages Division, National Institute of Animal Science, RDA, Cheonan and Jeollanam-do Agricultural Research and Extension Services, Naju in 2007 and 2008. Varieties used were Swan and Foothill in early- and late-maturing Oats, and Kospeed and Hwasan 101 in early- and late-maturing Italian ryegrass, respectively. In early-maturing variety, heading date of Swan was 14 May that was earlier one day than that of Kospeed. Plant length of Swan was 92cm that was longer 4cm than that of Kospeed. Average dry matter (DM) yield of 3 trial regions was not significantly different between Kospeed (6,809 kg/ha) and Swan (6,756 kg/ha) but DM yield of Italian ryegrass Hwasan 101 was less 35% than that of Swan. Average total digestible nutrient (TDN) yield of 3 trial regions was not significantly different between Kospeed (4,240 kg/ha) and Swan (4,162 kg/ha). In paddy cultivation of Naju, TDN yield of Kospeed was 4,154 kg/ha that was more 45% than that of Swan. Forage feed value was similar Kospeed to Swan in early maturing variety. Considering TDN yield and feed value of forage, early-maturing variety of Italian ryegrass was effective for spring-sown cultivation and suitable for forage production on paddy in southland of Korea.

Keywords

Spring-sown cultivation;Forage productivity;Forage quality

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