Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Impact of Application Rates of Pre-planting Liming Fertilizers on Changes in Soil Chemical Properties and Growth of 'Melody Yellow' Pansy in Plug Production

팬지 'Melody Yellow'의 플러그 육묘시 석회질 비료의 시비수준이 토양화학성 변화와 식물생장에 미치는 영향

  • Lee, Poong-Ok (Department of Horticulture, Chungnam National University) ;
  • Lee, Jong-Suk (Department of Horticulture, Chungnam National University) ;
  • Choi, Jong-Myung (Department of Horticulture, Chungnam National University)
  • 이풍옥 (충남대학교 농업생명과학대학 원예학과) ;
  • 이종석 (충남대학교 농업생명과학대학 원예학과) ;
  • 최종명 (충남대학교 농업생명과학대학 원예학과)
  • Received : 2010.01.14
  • Accepted : 2010.06.16
  • Published : 2010.10.31
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Abstract

Objective of this research was to investigate the influence of liming fertilizers on changes in soil chemical properties and growth of pansy 'Melody Yellow' in plug production. To achieve this, dolomite (DO) with 0, 1.0, 3.5, 8.0 or $13.0g{\cdot}L^{-1}$ and calcium carbonate (CC) with 0, 2.0, 2.5, 3.0, 3.5, or $4.0g{\cdot}L^{-1}$ in application rate were incorporated into peatmoss + vermiculite (1:1, v/v) during the formulation. The treatments of $3.5g{\cdot}L^{-1}$ of DO and 2.5 or $3.0g{\cdot}L^{-1}$ of CC had acceptable range of soil solution pH such as 5.6-6.2. Faster rising of pH was observed in root media containing CC rather than those of DO, indicating higher solubility of CC. The soil Ca concentrations in all treatments of CC were 2 times as high as those of DO. The treatments of 3.5 or $8.0g{\cdot}L^{-1}$ of DO had the highest soil Mg concentrations, but all treatments of CC had lower soil Mg concentrations than control indicating that additional applications of Mg fertilizers are required. The elevated application rate of DO or CC resulted in the increase of fresh and dry weight; however, plant heights were not influenced by application of liming fertilizers. The results of tissue analysis showed that application of DO or CC influenced the Ca and Mg contents, but did not influence the contents of other nutrients such as N, P, Fe, Mn, Zn and Cu.

석회질 비료인 고토석회와 탄산칼슘의 시비수준이 'Melody Yellow' 팬지의 플러그 육묘시 토양화학성 변화와 식물생장에 미치는 영향을 구명하기 위해 본 연구를 수행하였다. 피트모스+버미큘라이트(1:1, v/v) 혼합상토에서 고토 석회는 $3.5g{\cdot}L^{-1}$, 탄산칼슘은 2.5 또는 $3.0g{\cdot}L^{-1}$ 비율로 시비한 처리에서 이상적인 pH 5.6-6.2의 범위에 포함되었다. 탄산칼슘 처리구에서는 토양 pH가 빠른 속도로 상승한 후 안정되어 탄산칼슘이 고토석회에 비해 용해도가 높고 빠르게 토양 pH에 영향을 미치는 것을 알 수 있었다. 상토의 Ca 농도는 두 종류 석회질 비료의 시비수준이 높아질수록 비례적으로 상승하였고, 탄산칼슘이 시용된 모든 처리에서 고토 석회가 시비된 처리들보다 2배 이상 높은 농도로 분석되었다. 토양 Mg 농도는 고토석회 처리구에서 3.5와 $8.0g{\cdot}L^{-1}$ 처리에서 가장 높게 나타났고, 모든 탄산칼슘 처리구에서 대조구보다 낮은 농도로 분석되어 추가로 Mg을 공급해 주어야 함을 알 수 있었다. 탄산칼슘 시용량이 증가됨에 따라 팬지 생체중과 건물중이 증가하는 경향이었으나 초장은 뚜렷한 차이를 나타내지 않았다. 식물조직분석을 통한 무기원소 함량은 Ca과 Mg은 처리간의 약간의 차이를 나타냈지만 대부분의 무기원소에서는 처리구 모두 뚜렷한 차이가 나타나지 않았다.

Keywords

References

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