Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Effects of Soil Improvement and Growth of Watermelon on Plastic Film House by Soil Treatment of Miscanthus sinensis

억새 처리에 따른 시설수박 생육과 토양 특성에 미치는 영향

  • Ahn, Byung-Koo (Agricultural Environment Division, R&D Bureau, Jeollabuk-Do Agricultural Research and Extension Services) ;
  • Ko, Do-Young (Agricultural Environment Division, R&D Bureau, Jeollabuk-Do Agricultural Research and Extension Services) ;
  • Kim, Hyo-Jin (Crop and Food Division, R&D Bureau, Jeollabuk-Do Agricultural Research and Extension Services) ;
  • Kim, Tae-Bok (Agricultural Environment Division, R&D Bureau, Jeollabuk-Do Agricultural Research and Extension Services) ;
  • Chon, Hyong-Gwon (Agricultural Environment Division, R&D Bureau, Jeollabuk-Do Agricultural Research and Extension Services) ;
  • Kang, Yong-Gu (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration)
  • 안병구 (전라북도농업기술원 연구개발국 농업환경과) ;
  • 고도영 (전라북도농업기술원 연구개발국 농업환경과) ;
  • 김효진 (전라북도농업기술원 연구개발국 작물식품과) ;
  • 김태복 (전라북도농업기술원 연구개발국 농업환경과) ;
  • 전형권 (전라북도농업기술원 연구개발국 농업환경과) ;
  • 강용구 (농촌진흥청 국립식량과학원 바이오에너지작물연구소)
  • Received : 2019.09.03
  • Accepted : 2019.09.11
  • Published : 2019.09.30
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Abstract

BACKGROUND: Silver grass (Miscanthus sinensis) No. 1 was developed for production of bio-ethanol, and for the purpose the silver grass growing sector was established in Geumgang basin, Iksan, Jeonbuk, in 2011. However, the other application potentials except for using as the bio-energy resources should be considered because of the drop in international oil prices. Therefore, there is the necessity of a scientific basis to use the silver grass instead of rice straw as the organic matter source that is used for improvement of soil quality in the plastic film house. METHODS AND RESULTS: The silver grass was applied at 5, 10, 15 and 20 Mg/ha and tilled before the watermelon was planted in the plastic film-house. The control plot was treated with 10 Mg/ha with rice straw, and watermelons have been cultivated for 3 years(2017~2019). Soil aggregation, soil chemistry, and the growth characteristics were investigated, when the watermelon was harvested every year. Soil aggregation levels at the 2nd and 3rd year of watermelon harvest were similar from the plot applied with the silver grass at 5 Mg/ha and the control plot, and increased in the silver grass treated plots with more than 10 Mg/ha. However, there was no statistically significant difference between the plots. The nitrogen mineralization of silver grass in the control plot tended to be similar to the 5 Mg/ha plot, but the silver grass treated plots with over 10 Mg/ha showed low nitrogen mineralization. Soil EC on harvest stage was proportional to the applied mass of the silver grass, but pH was in inverse with the applied mass. Soil organic matter content, available phosphate, and exchangeable cations increased with the continued use of silver grass. Watermelon weight found to be the best on more than 15 Mg/ha of silver grass, and the sugar content was highest when 10 Mg/ha was treated. CONCLUSION: The use of the silver grass at 10 Mg/ha annually as the organic source was effective in replacing rice straw while growing fruits and vegetables on the plastic film house.

Keywords

References

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