Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Nitrogen Fertilization on the Growth of Rape (Brassica napus L.) in Newly Reclaimed Land in Korea

  • Yang, Chang-Hyu (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Kim, Taek-Kyum (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Kim, Sun (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Baek, Nam-Hyun (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Choi, Weon-Young (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Lee, Jang-Hee (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Jung, Jae-Hyeok (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Lee, Yong-Hwa (Bioenergy Crop Research Center, NICS, RDA) ;
  • Kim, Si-Ju (National Institute of Crop Science, RDA) ;
  • Lee, Kyeong-Bo (Department of Rice and Winter Cereal Crop, NICS, RDA)
  • Received : 2011.07.18
  • Accepted : 2011.08.08
  • Published : 2011.08.31
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Abstract

This study was conducted to find out the optimum nitrogen application rate for the stable production of rape in the newly reclaimed land located at Gangwhal region of Saemangum reclaimed land in which the soil is sandy loam (Munpo series). There were five treatments of nitrogen fertilization from zero to 60% increment based on the standard fertilization of $150kg\;ha^{-1}$. The growth of rape (Sunmang) was not affected by salt content while soil salinity was increased at blossoming season of rape. Compared to yield of standard fertilization the yield and the content of oleic acid of rape were increased by 4~26% with the increasing additional nitrogen fertilizer. The results obtained from the growth and yield of rape in this study indicated that it was possible to cultivate rape in a newly reclaimed land if soil salinity was kept below $3dS\;m^{-1}$.

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References

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