KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
권호 표지

Soybean Growth and Yield as Affected by Spacing of Drainage Furrows in Paddy Field

  • Cho, Jin-Woong (Collage of Agricultural & Life Science, Chungnam National Univ.) ;
  • Lee, Jung-June (Honam Agricultural Research Institute, National Institute of Crop Science, RDA) ;
  • Oh, Young-Jin (Honam Agricultural Research Institute, National Institute of Crop Science, RDA) ;
  • So, Jung-D. (Collage of Agricultural & Life Science, Chungnam National Univ.) ;
  • Won, Jun-Yeon (Dept. of Liberal Arts, Joongbu Univ.) ;
  • Kim, Chang-Ho (Dept. of Plant Resources, College of Industrial Sciences, Kong Ju National Univ.)
  • Published : 2006.03.01
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Abstract

This study was conducted to determine the optimum number of inter-rows according to distance of drainage furrow (DF) for running-off excessive-water stress (EWS) in paddy field. The most soil water potential was shown in high ridge (distance of DF by 70 cm) cultivation and the soil water potential showed increasing tendency in over four inter-rows cultivation by DF. The growth of soybean reduced by extended inter-row and its reducing level was high, especially, over four inter-rows (DF distance by 2.8 m) because of EWS. The photosynthetic rate decreased in the more extensive field by distance of DF at V5 and R2 stages, especially, in over four interrows cultivation. Also, root activity decreased at wider DF. The yield was reduced with wider distance of DF more extensively, the highest yield of 270 g per $m^2$ at the every row, but yield showed decreasing tendency at over the $4^{th}$ row (2.8 m) cultivation. Soybean cultivation in paddy field could be founded with DF of every other or $4^{th}$ row.

Keywords

References

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