생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제26권1호
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  • Pages.43-48
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  • 2017
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
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하이부시 블루베리 정식 시 유기물 조성이 토양 pH, 생육 및 과실 품질에 미치는 영향

Effect of Peatmoss-Based Organic Material Mixtures on Soil pH, Growth and Fruit Quality of Highbush Blueberry(Vaccinium corymbosum L.) Plants

  • Kim, EunJu (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Kim, Hyunggook (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Guak, Sunghee (Department of Horticulture, Chonbuk National University)
  • 투고 : 2016.10.31
  • 심사 : 2017.01.16
  • 발행 : 2017.01.31
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초록

블루베리 재배시 토양 유기물 공급원으로 쓰이고 있는 피트모스가 전량 수입에 의존하고 있어 국내에서 생산되는 소나무잎, 왕겨, 톱밥 등 유기물을 블루베리 정식 전 피트모스와 혼합처리 한 후 토양 pH 변화와 생육 및 과실 특성에 미치는 영향을 구명하고자 본 시험을 수행하였다. 시험품종은 2년생 북부 하이부시 블루베리 'Duke' 품종이었고 묘목 정식 전 피트모스를 근권에 20L 단용으로 처리하는 방법과 피트모스(10L)와 소나무잎, 왕겨, 톱밥을 각각 10L씩 혼합 처리하는 방법으로 실시하였다. 유기물의 화학성 분석 결과 pH는 피트모스가 4.3으로 가장 낮았고 소나무잎은 4.8, 왕겨는 7.3, 톱밥은 5.7이었다. 정식 직후 유기물을 투여한 토양의 pH는 5.3~5.9로 나타났고 피트모스단용, 피트모스+소나무잎 처리가 왕겨, 톱밥 혼합처리에 비해 낮았다. 정식 후 3년차 토양 pH는 4.2~4.5로 피트모스단용, 피트모스+소나무잎 처리에서 낮게 유지되었다. 유기물 조성에 따른 생육 시기별 토양수분 함량은 피트모스+소나무잎>피트모스단용> 피트모스+톱밥>피트모스+왕겨 순으로 높게 나타났다. 생육은 피트모스 단용과 피트모스+소나무잎 처리에서 양호하였고 꽃눈수가 많아 초기 수량이 많았다. 당도는 피트모스 단용 처리에서 $11.3^{\circ}Brix$로 높았고 경도는 피트모스+소나무잎 처리에서 증가되었으나 과실 품질에 있어 처리별 유의차는 없었다.

This experiment was conducted to test the suitability of various organic materials in order to reduce the use dependence of peatmoss as a soil pH regulator and to examine the effect of soil organic matter supply. A 2-year old northern-highbush blueberry (Vaccinium corymbosum L.) 'Duke' plants were planted in the field at $2.0m{\times}2.5m$ spacing in spring. Before planting, organic materials were incorporated into the soil including the planting hole at 20 liter per plant, as the following mixtures: peatmoss only (20 L), peatmoss (10 L) + pine needle (10 L, PN), peatmoss (10 L) + rice hull (10 L, RH), and peatmoss (10 L) + sawdust (10 L, SD). The pH of organic materials was lowest in peatmoss (pH 4.3), followed by PN (pH 4.8), SD (pH 5.7) and RH (pH 7.8). Soil pH measured right after planting ranged from 5.3 to 5.9 and was lower in PM only and PM + PN than PM + RH and SD treatments. In the third year, the pH lowered to the range of 4.2 to 4.5, with PM and PM + PN still maintaining lower values. The early growth was good in the mixed treatment of PM and PN, and the plant height and width and the number of new shoots were good in the PM treatment. Soil water content was maintained highest in PM + PN, followed by PM, PM + SD and PM + RH. Vegetative growth was maintained better in PM and PM + PN, and the number of flower cluster and yield were also slightly higher in those treatments while mean fruit weight was similar among all treatments. Fruit quality indices such as total soluble solids, titratable acidity and firmness were not affected.

키워드

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