한국환경농학회지 (Korean Journal of Environmental Agriculture)

  • 제42권1호
  • /
  • Pages.1-7
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  • 2023
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  • 1225-3537(pISSN)
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  • 2233-4173(eISSN)
한국환경농학회 (The Korean Society of Environmental Agriculture)
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팽윤 능력이 다른 고흡수성수지(Super Absorbent Polymers)의 혼합 비율별 모래 토양의 물리화학성 변화

Enhancement of Soil Physicochemical Properties by Blending Sand with Super Absorbent Polymers of Different Swelling Capacities

  • 김영선 (대구대학교 과학생명융합대학 원예학과) ;
  • 김태웅 (대구대학교 과학생명융합대학 원예학과) ;
  • 김윤섭 ((주)테라그린) ;
  • 나양호 (한남대학교 공과대학 화공.신소재공학과) ;
  • 이긍주 (충남대학교 농업생명과학대학 원예학과/스마트농업학과)
  • Young-Sun Kim (Department of Horticultural Science, Daegu University) ;
  • Tae-Wooung Kim (Department of Horticultural Science, Daegu University) ;
  • Yun-Seob Kim (TerraGreen Co. Ltd.) ;
  • Yang-Ho Na (Department of Advanced Materials and Chemical Engineering, Hannam University) ;
  • Geung-Joo Lee (Department of Horticulture and Department of Smart Agriculture Systems, Chungnam National University)
  • 투고 : 2023.03.10
  • 심사 : 2022.03.20
  • 발행 : 2023.03.31
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초록

Super absorbent polymers (SAPs) are hydrophilic molecules that can absorb large amounts of water. This study was conducted to investigate the enhancement of the physicochemical properties of sand soil blended with three SAPs imbibed with 100, 150, and 200-fold water. Three treatments were applied, namely, 100SAP, 150SAP, and 200SAP. The three SAPs were blended at concentrations of 0% (control), 3%, 5%, 7%, and 10% with sand. The pH, electrical conductivity, and cation exchangeable capacity (CEC) of soil blended with the three SAPs were pH 6.35-6.46, 0.09-0.65 dS/m, and 1.42-1.92 cmolc/kg, respectively, and their capillary porosity, total porosity, and saturated hydraulic conductivity were 21.0-29.3%, 39.2-48.7%, and 272-470 mm/hr. CEC, capillary porosity, total porosity, and saturated hydraulic conductivity of soil were positively correlated with the ratio of the SAPs (p<0.01). These results indicate that blending sand soil with SAPs increased CEC, capillary porosity, and saturated hydraulic conductivity, thus improving the nutrient-retention capacity, water-retention capacity, and permeability of the soil.

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