Abstract
The C and N mineralization characteristics of two organic N fertilizers were determined in a soil-less incubation system at three temperature regimes. Protox (derived from activated sewage sludge) initially degraded more rapidly by microbial action compared with dried blood. However, dried blood released more CO2-C and inorganic N towards the end of the incubation periods. The rate of microbial degradation increased with temperature. Mineralization characteristics of protein-based N sources are discussed in relation to organic N nutrition of vegetable crops.
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Smith, S.R., Hadley, P. Carbon and nitrogen mineralization characteristics of organic nitrogen fertilizers in a soil-less incubation system. Fertilizer Research 23, 97–103 (1990). https://doi.org/10.1007/BF01063336
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DOI: https://doi.org/10.1007/BF01063336