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Effects of Soil Organic Amendment as Plant Growing Media Component for Restoration of Planting Ground

식재기반 복원을 위한 유기질계 토양개량재의 효용성

  • Ju, Jin-Hee (Department of Green Technology Convergence, College of Science Technology, Konkuk University) ;
  • In, Da-Young (Department of Forest Science Graduate School, Konkuk University) ;
  • Kim, Won-Tae (Department of Environment and Landscape Architecture, Cheonan Yonam College) ;
  • Yoon, Young-Han (Department of Green Technology Convergence, College of Science Technology, Konkuk University) ;
  • Choi, Eun-Young (Department of Agricultural Sciences, Korea National Open University)
  • 주진희 (건국대학교 녹색기술융합학과) ;
  • 인다영 (건국대학교 대학원 산림과학과) ;
  • 김원태 (천안연암대학교 환경조경과) ;
  • 윤용한 (건국대학교 녹색기술융합학과) ;
  • 최은영 (한국방송통신대학교 농학과)
  • Received : 2015.07.16
  • Accepted : 2015.10.13
  • Published : 2015.11.30

Abstract

This study was aimed to determine effects of soil organic amendment as plant growing media component on restoration of planting ground. The changes of soil physical and chemical properties and germination and growth of kentucky bluegrass (Poa pratensis L.) were investigated. For treatments, soil was excavated at depth of 0-50 cm (referred as $S_1$) and at depth of 50-100 cm (referred as $S_2$). Then the half amount of $S_1$ soil was mixed with the soil organic amendment (coir dust 40% (v/v), bottom ash 25%, leaf mold 25%, vermiculite 5%, carbonized rice hull 5%) at a rate of 6% (v/v) (referred as $S_1CC$) and also the half amount of $S_2$ soil was mixed with the soil organic amendment at a rate of 6% (v/v) (referred as $S_2CC$) on pot in a 16 cm diameter and 14 cm height. The experiment was replicated 3 times with 3 pots per replication in randomized block design, and 100 seeds were planted per pot. In results, there was no significant difference in soil pH among the treatments with a slight decrease in soil hydraulic conductivity. However, in the $S_1CC$ treatment, positive increases in soil chemical properties, including electrical conductivity, organic matter, phosphoric acid, total nitrogen, exchangeable cation, and cation exchange capacity. Also, the germination rate, plant height, and number of leaves were higher in the $S_1CC$ treatment than those in other treatments. These results suggest that the addition of organic amendment to the soil at depth of 0-50 cm might be proper for restoring planting ground.

Keywords

References

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