Evaluation of Seed Germination and Growth Tests for Assessing Compost Maturity

Experiments involved the comparison of three procedures used to determine compost maturity/phytotoxicity. The three tests evaluated were the CCME germination test (1996), a modified Zucconi et al. (1981) extract and a direct seed procedure. Three different plant species and seven types of ‘composts’ were used. The species were cress (Lepidium sativum), radish (Raphanus sativus), and Chinese cabbage (Brassica chinensis). Germination and growth experiments were performed on three types of mature composts: 1) racetrack manure-food waste; 2) two different samples of municipal solid waste; and 3) racetrack manure-sewage sludge), two types of immature composts (farmyard manure-food waste and farmyard manure-yard waste-food waste], and a control (soil or water). Four replicates for each species, ‘compost’ and test procedure were evaluated. The study concluded that the commonly used compost extract test and the compost-soil germination and growth tests were not sensitive enough to detect differences between matur...

[1]  P. R. Warman,et al.  Composting and evaluation of racetrack manure, grass clippings and sewage sludge , 1996 .

[2]  Laurence V. Madden,et al.  Oxygen respirometry to assess stability and maturity of composted municipal solid waste , 1994 .

[3]  M. T. Baca,et al.  Comparative use of cress seed germination and physiological parameters of Helianthus annuus L. to assess compost maturation , 1990 .

[4]  T. Hernández,et al.  Phytotoxicity due to the agricultural use of urban wastes. Germination experiments , 1992 .

[5]  Y. Hadar,et al.  Recycling of cattle manure : the composting process and characterization of maturity , 1993 .

[6]  P. Stoffella,et al.  Composts from various municipal solid waste feedstocks affect vegetable crops. I. Emergence and seedling growth , 1997 .

[7]  M. de Bertoldi,et al.  Evaluating toxicity of immature compost , 1981 .

[8]  L. Ligneau,et al.  The effects of domestic compost upon the germination and emergence of barley and six arable weeds , 1995 .

[9]  E. Gregorich,et al.  Effects of Stockpiled and Composted Manures on Germination and Initial Growth of Cress (Lepidium sativum) , 1997 .

[10]  R. Gajdoš.  Effects of Two Composts and Seven Commercial Cultivation Media on Germination and Yield , 1997 .

[11]  E. Erhart,et al.  Evaluating Quality and Suppressiveness Of Austrian Biowaste Composts , 1997 .

[12]  Carlos García,et al.  Characterization of Urban Wastes According To Fertility and Phytotoxicity Parameters , 1997 .

[13]  K. Lasaridi,et al.  Controlled Composting of Paper Pulp Sludge Using the Aerated Static Pile Method , 1997 .

[14]  Alan A. Keeling,et al.  Germination and growth of plants in media containing unstable refuse-derived compost , 1994 .

[15]  P. Martín-Olmedo,et al.  Testing low-quality urban composts for agriculture: germination and seedling performance of plants , 1995 .

[16]  Ming Hung Wong,et al.  The responses of edible crops treated with extracts of refuse compost of different ages , 1985 .