Growth Characteristics of Six Rice Cultivars under Rice-Chinese Milk Vetch (Astragalus sinicus L.) Cropping System

자운영 환원답의 벼 품종간 생육특성과 수량에 관한 연구

  • Lee, Byung-Jin (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Ahn, Jong-Woong (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Hwang, Dong-Yong (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Oh, Seong-Hwan (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Kim, Joon-Hwan (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Kim, Sang-Yeol (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Ku, Yeon-Chung (Yeongnam Agricultural Research Institute, NiCS, RDA) ;
  • Choi, Zhin-Ryong (College of Agriculture and Life Sci., Gyeongsang Natl. University)
  • Published : 2006.11.30

Abstract

This study was carried out to comparatively evaluate growth characteristics of rice cultivars under rice-mono (conventional) and rice-Chinese milk vetch (Vetch) cropping system. Six rice cultivars such as Geumobyeo, Pungmibyeo, Hwayeongbyeo, Sobibyeo, Junambyeo and Dongjinbyeo were tested in 2005. The results obtained are summarized as follows ; plant height and culm length of all the tested cultivars at heading and harvest time were shorter in rice-vetch cropping system than conventional, however, nitrogen content of rice plants at heading and harvesting time was higher in rice-vetch cropping system. The total amount of nitrogen of rice plants was higher in conventional than rice-vetch cropping system. Nitrogen content of rice plant and uptake of Pungmibyeo was the highest of all the tested cultivars in both cropping systems. Generally, grain yietd ef tested cultivars seemed to be higher in conventional than rice-vetch cropping system. And it was the highest in Junambyeo as compared to those of other cultivars. Head rice ratio and protein content were higher in rice-vetch cropping system.