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고구마 연작지에서 심토파쇄에 따른 고구마 생육 및 수량성 변화 KCI 등재

Effect of Subsoiling on Growth and Yield of Sweetpotato in Continuous Sweetpotato Cropping Field

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한국작물학회지 (Korean Journal of Crop Science)
한국작물학회 (Korean Society Of Crop Science)
초록

Storage root yield of sweetpotato was decreasing owing to continuous sweetpotato cropping, debasement of soil physical properties, increasing incidence of pest and disease. This study was conducted to evaluate the changes in physicochemical properties of the soil owing to subsoiling (subsoiling to 50 cm depth), and the effect on growth and yield of sweetpotato. The subsoiling treatments included subsoiling treated every year for two years, subsoiling in the first year, and no subsoiling control. The soil physical properties measured were bulk density, hardness, porosity, three phase. Bulk density, porosity, soild (%) of three phase were improved by subsoiling in topsoil and subsoil. Main vine length and vine yield in subsoiling soil were higher than those in no subsoiling soil, but those were not significantly different. Yield of marketable storage root in subsoiling soils treated every year for two years and treated in the first year was more increased 17% and 20% than no subsoiling soil, respectively. The number of marketable storage root per plant was also higher in subsoiling soils than no subsoiling soil, but it was not significantly different. Soluble solid contents and total free sugar contents of storage root of sweetpotato were not significantly different among the treatments. These results show that improving soil physical properties by subsoiling could promote high yield of marketable storage root in continuous sweetpotato cropping field.

목차
재료 및 방법
  공시품종
  심토파쇄
  토양 물리화학성
  지상부 생육
  괴근 특성
 결과 및 고찰
  심토파쇄에 따른 토양의 물리화학성 변화
  심토파쇄에 따른 지상부 생육 특성
  심토파쇄에 따른 수량 및 품질특성
 적 요
 사 사
 인용문헌(REFERENCES)
저자
  • 이형운(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Hyeong-Un Lee Corresponding author
  • 정미남(농촌진흥청 국립식량과학원) | Mi-Nam Chung
  • 한선경(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Seon-Kyeong Han
  • 안승현(농촌진흥청 국립식량과학원) | Seung-Hyun Ahn
  • 이준설(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Joon-Seol Lee
  • 양정욱(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Jung-Wook Yang
  • 송연상(농촌진흥청) | Yeon-Sang Song
  • 김재명(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Jae-Myung Kim
  • 남상식(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | Sang-Sik Nam
  • 최인후(농촌진흥청 국립식량과학원 바이오에너지작물연구소) | In-Hu Choi