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Effects of Fertigation with Pig Slurry on Growth and Yield of Red pepper

돈분 액비를 이용한 관비재배가 고추의 생육 및 수량에 미치는 영향

  • Lim, Tae-Jun (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, In-Bog (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Kang, Seok-Beom (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Park, Jin-Myeon (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Hong, Soon-Dal (Department of Agricultural Chemistry, Chungbuk National University)
  • 임태준 (국립원예특작과학원 원예특작환경과) ;
  • 이인복 (국립원예특작과학원 원예특작환경과) ;
  • 강석범 (국립원예특작과학원 원예특작환경과) ;
  • 박진면 (국립원예특작과학원 원예특작환경과) ;
  • 홍순달 (충북대학교 농업생명환경대학 농화학과)
  • Received : 2010.08.11
  • Accepted : 2010.09.23
  • Published : 2010.09.30

Abstract

Slurry composting biofiltration(SCB) is considered as a treatment to produce a better fertilizer resource than raw pig slurry as it reduces odor and improves nutrients imbalance. For the agricultural use of SCB slurry as a nutrient source with minimum environmental impact, it is important to investigate the effect of different rate of SCB slurry application on nutrient (particularly for nitrogen) uptake and growth of crops. This study was conducted to investigate the influence of fertigation using pig slurry(PS) on growth and yield of red pepper and to evaluate the appropriate PS concentration in fertigation for soils with different nitrate concentration. To evaluate the effects of fertigation applied PS as a substitute of chemical fertilizer(CF), a single application of three different concentrations of PS: $N_{0.5}$ (43 mg/L), $N_{1.0}$ (86 mg/L) and $N_{1.5}$ (131 mg/L) were compared with CF $N_{1.0}$ (89 mg/L) as a control nitrogen fertilizer. Statistical analysis showed that the growths of red pepper were not affected by treatments. In addition, the yields were no significant difference among treatments, though the highest yield was obtained in PS $N_{1.0}$ by 20,580 kg/ha. In soil chemical properties, nitrate nitrogen on soil of between PS N1.0 and CF $N_{1.0}$ treatment showed similar patterns although they were higher than the preplant nitrogen content. Also, there was no significant difference in yield of red pepper between PS and CF treatment applied as fertigation on soils where nitrate nitrogen contents of each soil contains 10, 100 and 200 mg/kg respectively. Consequently, the application of PS, such as SCB, as a substitute of CF is available for growth and yield of red pepper, there could be accordingly estimated the optimal fertigation concentration of PS for red pepper cultivation.

냄새와 양분의 불균일을 개선한 SCB 액비의 농경지로의 적용을 위해서는 작물에의 이용률 증대 및 환경에의 영향을 최소화하는 적절한 질소 양분관리가 중요하다. 본 연구는 액비를 이용한 관비가 고추의 생육 및 수량에 미치는 영향과 더불어서 토양의 질산태 질소 함량이 다른 경우에 액비의 관비농도를 추정하고자 하였다. 화학비료 표준량(N1.0) 대비 액비 N0.5, N1.0 및 N1.5 관비농도를 이용한 고추의 생육 비교에서는 처리간의 차이를 보이지 않았고, 수량에서도 액비 N1.0 처리에서 가장 높은 수량(20,580 kg/ha)를 나타내었지만, 모든 처리에서 처리간의 유의성은 없었다. 고추 재배기간에의 토양 중 질산태 질소는 시험 전 토양(114 mg/kg)과 비교하여 액비 N0.5에서는 약간 감소(103 mg/kg)하였으나 액비 N1.0 및 화학비료 처리에서는 다소 증가하는 경향을 보였다. 또한 토양의 질산태 질소가 10, 100, 200 mg/kg의 함량 수준에서 액비 및 화학비료의 관비농도를 120, 80, 40 mg/L로 각각 조정하였을 때 비료원에 따른 구분없이 처리간의 동일한 수량을 생산할 수 있었다. 이상의 결과에서 시설고추에서 SCB액비를 활용한 관비재배는 이용 가능하며 화학비료 사용량을 절감할 수 있는 대체자원으로 평가되었다.

Keywords

References

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