title: [Effects of sludge compost used as lawn medium on lawn growth and soil and water environment].
abstract: To address effect of the sludge compost-containing medium on the growth of Manila lawn and environment quality, a pot experiment was conducted using six treatments based on contrasting sludge compost addition volume ratios in the soil system (i. e., 0% , 10% , 25% , 50% , 75% and 100%). The results indicated that the growth potential of Manila lawn was increased with increasing sludge compost addition volume ratio. The content of Hg in Manila plant was significantly positively correlated with that in the lawn medium. Although the contents of Cr, Cd and Hg in the lawn medium were synchronously increased with increasing sludge compost addition volume ratio in the soil system, their contents were all lower than the critical levels of third-class standard in the National Soil Environmental Quality Standard. The heavy metal and nitrate concentrations detected in percolating water were significantly positively correlated with those in the lawn medium, respectively. When the sludge compost addition volume ratio was more than 50% in this study, both heavy metal and nitrate concentrations in percolating water would exceed the maximum allowable levels of the National Groundwater Environment Quality Standard.
authors.affiliation: Ecology and Environment Institute, Ningbo Academy of Agricultural Science, Ningbo 315040, China. jinshuq@126.com
authors.forename: Shu-Quan
authors.initials: SQ
authors.lastname: Jin
authors.affiliation: Ecology and Environment Institute, Ningbo Academy of Agricultural Science, Ningbo 315040, China.
authors.forename: Jin-Bo
authors.initials: JB
authors.lastname: Zhou
authors.affiliation: Ecology and Environment Institute, Ningbo Academy of Agricultural Science, Ningbo 315040, China.
authors.forename: Ruo-Xia
authors.initials: RX
authors.lastname: Chen
authors.affiliation: Solid Waste Management Center of Ningbo, Ningbo 315040, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Lin
authors.affiliation: Golden Land Biological Compost Cooperative of Cixi City, Ningbo 315300, China.
authors.forename: De-Yao
authors.initials: DY
authors.lastname: Wang
mesh_terms: D019216:Metals, Heavy / Q000032:analysis; D009566:Nitrates / Q000032:analysis; D006109:Poaceae / Q000254:growth & development*; D012722:Sewage / Q000032:analysis*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis; D014867:Water / Q000737:chemistry*
chemical_list: D019216:Metals, Heavy; D009566:Nitrates; D012722:Sewage; D012987:Soil; D012989:Soil Pollutants; D014867:Water