Abstract
About 80 different biogenic waste composts were tested by new or modified conventional microbiological methods (oxygen-consumption, DMSO-reduction, Ehand pH-drop during anaerobic incubation, reference method: self-heating-capacity) to determine the state of maturity and the effect of composts on plant growth in pot-trials. The progress in ripening of composts could be proved well by oxygen- consumption, pH-drop and self-heating-capacity, while DMSO-reduction and Eh-drop reflected maturity only with restrictions. A satisfactory prediction of plant-growth (dry-matter-production of oats) after compost-application with the help of the biological parameters was scarcely possible, only pH-drop showed a somewhat higher correlation. It was found out, however, that the effect of compost on plants could be estimated well by making use both of the C/N-ratio and of biological parameters.
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Popp, L., Fischer, P. (1996). Biological Parameters to Estimate the Effect of Biogenic Waste Composts on Plant Growth in Pot Trials. In: de Bertoldi, M., Sequi, P., Lemmes, B., Papi, T. (eds) The Science of Composting. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1569-5_29
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DOI: https://doi.org/10.1007/978-94-009-1569-5_29
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