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

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Feed Value of Whole-Crop Silage Rice by Cultivars and Plant Parts at Different Transplanting and Harvest Dates

  • Lee, Jihyun (Department of Central Area Crop Science, NICS, RDA) ;
  • Ku, Bon-Il (Department of Central Area Crop Science, NICS, RDA) ;
  • Shim, Kang-Bo (Department of Central Area Crop Science, NICS, RDA) ;
  • Shin, Myeong-Na (Department of Central Area Crop Science, NICS, RDA) ;
  • Jeon, Weon-Tai (Department of Central Area Crop Science, NICS, RDA)
  • Received : 2020.08.07
  • Accepted : 2020.09.16
  • Published : 2020.09.29
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Abstract

This study was carried out to find out the changes in the growth characteristics and feed value of the three different whole-crop silage rice cultivars of whole-crop silage rice such as Jonong, Yeongwoo and Mogwoo to develop an efficient double cropping system. This study showed that there were significant differences biomass and feed values among cultivars but no clear difference among transplanting dates. Dry weight and height were in order of Mogwoo, Yeongwoo, Jonong (p<0.05). Dry weight and feed value of Jonong showed no significant difference after 21 days after heading (DAH), it was expected to be harvested before DAH 30 days. Yeongwoo showed a lower dry weight than Mogwoo, but heading date was earlier than Mogwoo, so one can expect a higher feed value than Mogwoo. Mogwoo had lower crude protein and total digestible nutrient than the other two cultivars but relative feed value in stem was higher than that of the other cultivars, but had higher dry weight than other cultivars so it was considered to take an advantage as a silage rice. Therefore, the results of this study suggest that the selection of whole-crop silage rice on the cropping system be made comprehensively by considering the heading characteristics of the cultivars and the feed value.

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References

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