Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Influence of Continuous Application of Gypsum, Popped Rice Hulsl and Zeolite on Soil Aggregation of Reclaimed Silt Loam Soils

석고, 팽화왕겨 및 제오라이트 연속시용이 간척지 미사질 양토의 입단화에 미치는 영향

  • Baek, Seung-Hwa (Department of Biofood Science and Biotechnology Chungbuk Provincial University) ;
  • Kim, Jae-Yeong (Food Chemical Residues Division Department of Food Safety Evaluation National Institute of Food and Drug Safety Evaluation Korea Food and Drug Administratio) ;
  • Kim, Seong-Jo (Department of Bio-Environmental Chemistry Wonkwang University)
  • 백승화 (충북도립대학 바이오식품생명과학과) ;
  • 김재영 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 화학물질과) ;
  • 김성조 (원광대학교 생물환경화학과)
  • Published : 2013.06.30
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초록

We investigated influence of continuous application of gypsum(G:$CaSO_4{\cdot}2H_2O$), popped rice hulls(H) and zeolite(Z) on soil aggregation of reclaimed silt loam soils. The application rates amended to silt loam from reclaimed soils at Saemangeum of Mangyeong were varied as follows; 1550(G1), 3100(G2), 6200 (G3) gypsum kg/10a, 1000(H1), 2000(H2), 3000(H3) popped rice hulls kg/10a, and 200(HZ1), 400(HZ2), 800(HZ3) zeolite kg/10a added to 1500 popped rice hulls kg/10a, respectively. In addition, the bermuda grass was growing, and the soil aggregates were analyzed for 60, 90 and 120 days after treatments(DAT). At 60 DAT, the effect of treatment was in order of G>H${\geq}HZ$, and the 1550kg/10a(G1) was the highest as 52.48%. At 90 DAT, the effect of treatment was also in order of G>H>HZ. Those was 3.78-3.12, 2.03-3.03 and 1.79-2.57 times in compared with the control, respectively. At 120 DAT, the effect of treatment was similar continued in order of G>H>HZ. Those was 3.00-2.20, 1.06-1.64 and 0.92-1.23 times in compared with the control, respectively. In conclusion, we found that the continuous application for two year of gypsum, popped rice hulls and zeolite was excellent above the 1 year, and the effect of the treatment for soil amendments of reclaimed silt loam soil was excellent in order of G>H>HZ.

간척지의 미사질양토 토양에서 토양 개량제의 연속시용이 토양 입단화도에 미치는 효과를 보기 위하여 이수석고 1550(G1), 3100(G2), 6200(G3) kg/10a, 팽화왕겨 1000(H1), 2000(H2), 3000(H3) kg/10a, 팽화왕겨 1500 kg/10a에 zeolite를 200(HZ1), 400(HZ2), 800(HZ3) kg/10a을 각각 조합처리 하는 등 3종의 토양개량제를 처리하고, 60, 90, 120 DAT(처리 후 경과 일수)에서 입단크기별 입단 생성 정도를 분석하였다. 60 DAT 미사질 양토에서 입단형성을 위한 토양개량제 효과는 이수석고 단일처리>팽화왕겨+Zeolite${\geq}$팽화왕겨 단일처리 순으로 그 시용효과가 높았으며, 이수석고 1550 kg/10a(G1) 처리가 52.49%로 가장 높은 입단화도를 나타내었다. 90 DAT에서는 이수석고>팽화왕겨>팽화왕겨+zeolite 순으로 그 시용효과가 높아 무처리에 비하여 각각 3.78-3.12, 2.03-3.03, 1.79-2.57배의 시용효과를 나타내었다. 120 DAT에서는 90 DAT의 경우와 같이 이수석고>팽화왕겨>팽화왕겨+zeolite 순으로 입단화도의 유지효과가 지속되고 있었으며, 무처리구에 비하여 각각 3.00-2.20, 1.06-1.64, 0.92-1.23배의 시용효과를 나타내었다. 팽화왕겨 및 팽화왕겨+zeolite 처리는 시간이 더 경과된 120 DAT에서 입단감소가 뚜렷하였고, 이수석고는 1550kg/10a(G1)의 입단화도가 53.28%로 가장 높았다. 2년 연속 시용에 따른 입단 형성량은 120 DAT에서 1년차의 경우보다 크게 향상되는 경향을 나타내었다. 결론적으로 간척지의 토양개량제 시용 효과는 2년 연속 시용의 경우가 1년 시용의 경우보다 입단화율을 높였고, 미사질 양토의 입단 형성에 이수석고 시용이 가장 효과적 이었다.

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