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비료원과 멀칭재료에 따른 사과 유묘의 생장 및 토양이화학성 변화

Growth and Soil Chemical Property of Small Apple Trees as Affected by Organic Fertilizers and Mulch Sources

  • 최현석 (국립농업과학원 유기농업과) ;
  • 롬컽 (아칸소주립대학교 원예학과) ;
  • 이연 (국립농업과학원 유기농업과) ;
  • 조정래 (국립농업과학원 유기농업과) ;
  • 정석규 (경희대학교 한방재료 가공학과) ;
  • 지형진 (국립농업과학원 유기농업과)
  • Choi, Hyun-Sug (Organic Agriculture Division, National Academy of Agricultural Science) ;
  • Rom, Curt (Department of Horticulture, University of Arkansas) ;
  • Lee, Youn (Organic Agriculture Division, National Academy of Agricultural Science) ;
  • Cho, Jung-Lai (Organic Agriculture Division, National Academy of Agricultural Science) ;
  • Jung, Seok-Kyu (Department of Medicinal Materials & Processing, Kyunghee University) ;
  • Jee, Hyeong-Jin (Organic Agriculture Division, National Academy of Agricultural Science)
  • 투고 : 2010.11.19
  • 심사 : 2011.03.10
  • 발행 : 2011.03.31

초록

본 실험은 비료 공급원으로서 1) 대조구(NF), 2) 상업용 유기질 비료($10N-2P_2O_5-8K_2O$, Nature Safe$^{(R)}$)(CF), 3) 계분 비료(PL)를 포함하였고, 멀칭 공급원으로는 4) 나무껍질 멀칭(WC), 5) 재활용 종이 멀칭(SP), 6) 식물성 퇴비 멀칭(GC), 7) 초생멀칭(GR)을 포함하였다. 유기질 비료와 멀칭의 양은 매해 유기농 사과나무 포장에 시비하였던 (50 g 질소/한 나무, 10 cm 멀칭시용/한 나무) 질소량과 체적에 각각 비례해서 각 포트에 시비하였다. CF, PL, 그리고 GR 급원은 미생물이 유기태 질소를 무기화(N-mineralization) 하는데 이상적인 탄소:질소(30:1이하)비를 보였는데, 처리 후 90일 째 되던 날에 토양중 무기태 질소 농도를 증가시켰다. CF, PL, 그리고 GR 처리된 유묘는 가장 넓은 총 엽면적과 두꺼운 직경, 그리고 큰 수고 및 건물중을 나타내어서 식물생장을 증가시키기 위한 가장 유용한 자재로 평가되었다.

참고문헌

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