Utilization of Paper Sludges for Developing Bed Soils and Seedling Pots (II) - Manufacture of artificial bed soils by optimum mixing of paper sludges and additives -

상토 및 육묘 포트의 개발을 위한 제지 슬러지의 이용 (제2보) - 제지 슬러지 및 첨가제의 최적 혼합을 통한 인공 상토 제조 -

  • Kim, Chul-Hwan (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.) ;
  • Kim, Gyeong-Yun (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.) ;
  • Sin, Tae-Gi (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.) ;
  • Jung, Ho-Gyeong (gDept. of Forest Sciences/IALS, Gyeongsang National Univ.) ;
  • Lee, Young-Min (Dept. of Forest Sciences/IALS, Gyeongsang National Univ.) ;
  • Song, Dae-Bin (Dept. of Bio-Industrial Machinery Engineering, Gyeongsang National Univ.) ;
  • Huh, Moo-Ryong (Dept. of Horticulture, Gyeongsang National Univ.)
  • 김철환 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 김경윤 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 신태기 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 정호경 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 이영민 (경상대학교 임산공학과/농업생명과학연구원) ;
  • 송대빈 (경상대학교 생물산업기계공학과/농업생명과학연구원) ;
  • 허무룡 (경상대학교 원예학과/농업생명과학연구원)
  • Published : 2007.12.31

Abstract

In order to supplement insufficient nutrients of paper sludges, additional materials such as saw dust and rice husk were added during preparation of bed soils. Rice husk was more finely ground, compared to saw dust. The fine particles of the rice husk prevented their flow in a barrel of the expander. The mixed additives with paper sludges could be used to control the quantity of required nutrients for raising plants. That is, except for potassium and manganese, most of nutrients were decreased with adding the additives to paper sludge. The acidity of the paper sludges mixed with the saw dust or the rice husk was a little decreased with the increased amount of the additives. Differently from the bulk density of the paper sludges, the moisture content and the water absorption rate of the paper sludges were incremented with increasing the additives.

Keywords

References

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