Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Changes in Chemical Properties and Fauna of Plastic Film House Soil by Application of Chemical Fertilizer and Composted Pig Manure

시설재배지에서 화학비료와 돈분 퇴비시용에 따른 토양의 화학성 및 생물상 변화

  • Kwak, Han-Kang (National Institute of Agricultural Science and Technology, RDA) ;
  • Seong, Ki-Seog (National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Nam-Jong (National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Sang-Beom (National Institute of Agricultural Science and Technology, RDA) ;
  • Han, Min-Su (National Institute of Agricultural Science and Technology, RDA) ;
  • Roh, Kee-An (National Institute of Agricultural Science and Technology, RDA)
  • Received : 2003.07.02
  • Accepted : 2003.08.13
  • Published : 2003.10.30
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Abstract

Effects of different amounts of fertilizer and manure application on changes of chemical and biological properties of soil were studied in plastic film house. Application amount of fertilizer was determined on the basis of soil test, standard application rate, and conventional rate of farmers. Lettuce in the first and second seasons and spinach in the third season were cultivated. Crop yields were highest in the plot fertilized on the basis of soil test during the three crop seasons. In the third crop season, spinach yield was lower in conventional plot applied with larger amount of pig manure compost than any other treatment. Organic matter, available phosphorus, and exchangeable potassium were accumulated in soil of the conventional plot with successive cropping. There was no difference in the abundance of soil invertebrates among the treatments, but soil enzyme activity was highest in the conventional plot.

채소를 연속 재배하는 시설재배지에서 화학비료와 돈분퇴비시용이 토양의 화학성과 생물상에 미치는 영향을 알기 위해 양분공급량별 토양 화학성 및 생물상변화와 토양효소활성 등의 변동에 대한 연구결과 작기별 수량은 1-2작 상추재배의 경우 표준시비구나 농가 관행시비구에 비하여 토양검정시비구에서 증가하였으며, 3작 시금치 재배에서는 질소비료와 돈분퇴비 시용량이 많은 농가 관행시비구에서 오히려 감수되었다. 토양 미소동물상은 처리간에 일정한 경향이 없었으며, 연 3작까지 표준시비나 토양검정에 의한 화학비료와 돈분퇴비를 시용할 경우 dehydrogenase는 $32-47{\mu}g\;TFP\;g\;soil^{-1}\;d^{-1}$, phosphatase는 $60-63{\mu}g\;TFP\;g\;soil^{-1}\;d^{-1}$이었으나, 농가 관행수준의 화학비료와 돈분퇴비가 시용된 처리구의 dehydrogenase와 phosphatase 활성은 각각 63, $89{\mu}g\;TFP\;g\;soil^{-1}\;d^{-1}$ 으로 표준시비구나 토양검정구에 비해 증가되었다. 또한, 연 3작 기간동안 $76Mg\;ha^{-1}$의 돈분퇴비가 시용된 농가관행구의 토양유기물 함량과 토양유효인산 함량의 증가는 각각 50, 23%이었다. 따라서 시설재배지에서 가축분퇴비를 시용하면서 연중 작물을 재배할 경우에는 건전한 토양환경의 유지를 위해 토양검정결과를 토대로 하여 가축분퇴비 중의 양분을 고려하면서 시용할 필요성이 강조되어야 할 것으로 판단되었다.

Keywords

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