하수오니 첨가토양이 Orchardgrass 유식물체의 생육에 미치는 영향

• 영문명: The effect of sewage sl udge compost amended soils on the growth of Orchardgrass seedlings.
• 발행기관: 유기성자원학회
• 저자명: 이주삼(Ju Sam Lee)
• 간행물 정보: 『유기물자원화』제2권 제2호, 77~88쪽, 전체 12쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1994.12.30

영문 초록

This experiment was carried out to investigate the effect of sewage sludge compost amended soils on the growth and accumulation patterns of heavy metals in plant parts of Orchardgrass seedlings, changes in physical properties and chemical composition, and heavy metal residue in soils. Mixture ratios of sewage sludge compost and soil (loam) were 100:0, 80:20, 60:40, 40:60, 20:80 and O: lOO(control), respectively,The results obtained were as follows: 1. The physical properties and chemical compostion of soils were improved by increase in mixture ratios of sewage sludge compost. 2. The biological yield of Orchardgrass seedlings was increased with mixture ratios of sewage sludge compost. 3. The dry weight of shoot(SH) was increased with both of yield components(NT and WT) and biological yield of Orchardgrass seedlings. 4, The total nitrogen concentrations(TN) of plants was increased with quadratically up to the biological yield of 100% mixture ratio of sewage sludge compost. 5. Lead(Pb) concentration of soil in over the 60% mixture ratios of sewage sludge compost were in excess of limiting level(50ppm) of organic fertilizers.

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