Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effect of Cover Crops on the Soil Properties and Fruit Quality in a Persimmon Orchard

녹비작물이 단감과원의 토양 특성과 과실품질에 미치는 영향

  • 김병삼 (전남농업기술원 원예연구소) ;
  • 조경철 (전남농업기술원 원예연구소) ;
  • 나양기 (전남농업기술원 원예연구소) ;
  • 윤봉기 (전남농업기술원 원예연구소) ;
  • 정석규 (대구가톨릭대학교 화훼원예학과) ;
  • 조광식 (국립원예특작과학원 배시험장) ;
  • 이경아 (대구가톨릭대학교 식품영양학과) ;
  • 최현석 (대구가톨릭대학교 화훼원예학과)
  • Received : 2014.03.19
  • Accepted : 2014.07.22
  • Published : 2014.09.30
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Abstract

This study was conducted into the effects of cover crops among the hairy vetch, red clover, rye, and hairy vetch+rye on the soil chemical and physical properties, and fruit yield in mature 'Fuyu' persimmon (Diospyros${\times}$kaki Thunb.) trees. The shallow-rooted red clover had poor dry matter production, resulting in the lowest coverage (66%) on the orchard floor. In contrast, the highest dry matter production observed in rye and hairy vetch+rye. Estimated N, P and K production from the cover crops were the highest on the hairy vetch+rye plots, increasing soil chemicals at a depth of 0-30 cm soil. Rye or hairy vetch+rye treatments decreased the soil bulk density and solid phase. As the hairy vetch+rye treatment increased fruit yield and sugar contents, it could be proposed as an suitable cover crop for improving productivity of persimmon trees.

'부유' 단감과수원에 적합한 녹비작물을 선발하기 위하여 헤어리베치, 레드클로버, 호밀, 헤어리베치+호밀을 파종하여 토양화학성과 물리성 그리고 과실수량과 품질을 조사하였다. 천근성인 레드클로버는 생육이 저조하여 피복도가 약 66%로 처리구에서 가장 낮았고 호밀 또는 헤어리베치+호밀 혼파처리구의 토양환원량이 가장 높았다. 식물체에서 환원되는 질소, 인산, 칼리 함량이 헤어리베치+호밀처리구 혼파처리구에서 가장 높아 토양의 유기물과 pH, 인산, 칼리, 칼슘과 전기전도도가 증가하였다. 토양의 용적밀도와 고상이 호밀 또는 헤어리베치+호밀처리구에서 감소되어 기상의 증가로 인한 공극률이 증가되었다. 헤어리베치+호밀처리에서 과실의 착과수와 수량이 가장 높았으며, 과실의 당도와 착색이 증가되는 효과가 인정되어 녹비작물로서 단감과원에 이용될 수 있을 것으로 판단된다.

Keywords

References

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