Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effect of Soil Sulfur treatment on Apple Valsa Canker

유황토분 처리가 사과 부란병에 미치는 영향

  • 전익조 (안동대학교 자연과학대학 원예육종학과) ;
  • 박승민 (안동대학교 자연과학대학 원예육종학과)
  • Received : 2016.11.03
  • Accepted : 2017.01.17
  • Published : 2017.02.28
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Abstract

This study was carried out to examine the effects of soil sulfur mixture on the control apple valsa canker in apple orchard for two years. In organic apple orchard, The recovery percentages of apple valsa canker were compared among control (no treatment), lime sulfur, and soil sulfur in organic orchards. In conventional apple orchards, those of recovery percentages were compared among control, neoasozin, lime sulfur, and soil sulfur. Compared with control, soil sulfur treatments significantly improved the recovery percentages of apple valsa canker infected trees in organic orchard. However, there were no differences between lime sulfur and soil sulfur treatment in organic apple orchard, except BongHyun orchard experiment in 2013. Compared with control fruit qualities, fruit skin red color and fruit firmness were improved in lime sulfur and soil sulfur treatment, respectively. In conventional orchard, apple trees treated with lime sulfur, soil sulfur or neoasozin improved recovery percentages, compared with those of control trees. Soil sulfur treatments recovered 87.5~97.5% of infected 'Fuji'/MM106 apple trees in organic and conventional apple orchards. The trees applied with neoasozin showed significant lower shoot growth than those of soil sulfur treatment in conventional orchard. Soli sulfur treatment improved fruit red color, but did not affected fruit weight, fruit firmness, soluble solids concentrations, and titratable acidity.

본 연구는 친환경 유기과원의 부란병 방제를 위한 유황토분의 효과를 검증코자 2년간 수행되었다. 제조된 유황토분의 사과 부란병 치유효과를 검증하기 위해 유기과원에는 석회유황합제의 처리와 비교하였으며, 관행과원에서는 석회유황합제, 유황토분 및 네오아소진을 처리하였다. 유기과원의 유황토분의 부란병 치유율은 대조구에 비해 뚜렷하게 유의성이 인정되었으나, 2013년 봉현 과원을 제외하고는 석회유황합제와는 큰 차이가 없었다. 유기과원의 과실품질조사 결과, 과피의 붉은 색은 대조구에 비해 석회유황합제 처리구에서 다소 높게 나타냈으며, 과실의 경도에서는 유황토분 처리구가 대조구에 비해 유의적으로 높게 나타났다. 관행과원에서의 유황토분, 석회유황합제 및 네오아소진 처리는 대조구에 비해 통계적 유의적으로 높게 조사되었다. 유황토분의 부란병 치유율은 유기사과과원 및 관행사과과원에서 87.5~97.5%인 것으로 조사되었다. 관행과원에서의 유황토분 처리는 신초생육에 있어 네오아소진에 비해 통계적 유의성이 있게 증가하였다. 과실품질의 경우 유황토분처리는 과실의 붉은 색의 증가를 보였으나, 다른 과실품질인 무게, 경도, 당도 및 적정산도에서 통계적 유의성을 나타내지 않았다.

Keywords

References

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