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패화석이 보리생육과 토양 미생물상에 미치는 영향

Effects of Oyster Shell Lime on Barley Growth and Soil Microbe in an Upland Soil

  • Lee, Young-Han (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Sonn, Yeon-Kyu (National Academy of Agricultural Science, RDA) ;
  • Lee, Seong-Tae (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Heo, Jae-Young (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Min-Keun (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Eun-Seok (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Song, Won-Doo (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Dae-Ho (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Ok, Yong-Sik (Biochar Research Center, Department of Biological Environment, Kangwon National University)
  • 투고 : 2012.07.05
  • 심사 : 2012.08.06
  • 발행 : 2012.08.31

초록

산성토양을 개량하기 위한 목적으로 패화석을 시용하여 보리의 생육, 수량과 품질 및 토양 미생물상을 조사하였다. 패화석 처리로 석회고토나 무처리에 비해 $m^2$당 수수와 천립 중이 높아져 보리의 수량은 석회소요량 처리구인 패화석 $3.09Mg\;ha^{-1}$ 시용에서 $5.53Mg\;ha^{-1}$로 가장 많았으며 석회고토 동량의 패화석 처리구도 $5.23Mg\;ha^{-1}$로 석회고토 $5.20Mg\;ha^{-1}$ 보다 증대되었다. 패화석 처리구는 석회고토 처리구 보다 보리 단백질 함량은 0.5~0.7% 낮아져 농산물의 품질향상에 미치는 영향은 석회고토보다 양호한 것으로 판단되었다. 토양 pH는 패화석과 석회고토 시용으로 무처리 보다 0.5~0.6 정도 상승되었고 치환성 Ca 함량은 패화석 $3.09Mg\;ha^{-1}$ 처리구에서 $7.5cmol_c\;kg^{-1}$으로 가장 높았으며 석회고토 처리구는 치환성 Mg 함량이 $2.5cmol_c\;kg^{-1}$으로 가장 높게 나타났다. 패화석 $3.09Mg\;ha^{-1}$$2.38Mg\;ha^{-1}$ 처리구는 석회고토 $2.38Mg\;ha^{-1}$ 처리구에 비해 토양의 세균 밀도는 각각 60.9 및 $69.7{\times}10^6CFU\;g^{-1}$로서 높은 반면 방선균 밀도는 각각 32.4, $45.4{\times}10^5CFU\;g^{-1}$로서 낮았다.

Oyster shell has a high content of $CaCO_3$ to be used as a acidic soil amendment. To enhance productivity of barley and soil microbe in an upland soil, oyster shell and calcium-magnesium carbonate were selected as a soil amendments in this study. A field experiment was treated no treatment (hereafter, control), oyster shell lime $3.09Mg\;ha^{-1}$ and $2.38Mg\;ha^{-1}$, and calcium-magnesium carbonate $2.38Mg\;ha^{-1}$ as amount of lime requirement in silt loam soil. The yield of barley from the oyster shell lime treatment was the highest. The protein content of barley was the highest of 11.1% in the calcium-magnesium carbonate, followed by 10.7% for the control, 10.6% for the oyster shell lime $3.09Mg\;ha^{-1}$, and 10.4% for the oyster shell lime $2.38Mg\;ha^{-1}$. Soil pH value was higher than that of control in harvesting stage. In addition, the population of soil bacteria was highest in oyster shell lime $2.38Mg\;ha^{-1}$, actinomycetes was highest in calcium-magnesium $2.38Mg\;ha^{-1}$. We concluded that the oyster shell lime can be effective to restore soil nutrient and microbe balance in an upland soil.

키워드

참고문헌

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피인용 문헌

  1. Changes of Soil Properties with Various Soil Amendments in Saemangeum Reclaimed Tidal Saline Soil vol.46, pp.4, 2013, https://doi.org/10.7745/KJSSF.2013.46.4.281
  2. Characterization of Microbial Nitrate Uptake by Bacillus sp. PCE3 vol.56, pp.4, 2013, https://doi.org/10.3839/jabc.2013.038