CORDIS OpenAire Sygma Crossref Microsoft Academic Graph Europe PubMed Central European Union Open Data Portal http://onlinelibrary.wiley.com/wol1/doi/10.1002/jsfa.7207/fullpdf https://doi.org/10.1002/jsfa.7207 Journal of the Science of Food and Agriculture Closed Access 2015-04-10 Seaweed and fish waste can be composted together to obtain fertilizer with high organic matter and nutrient contents. The nutrients, however, are mostly in organic form and must be mineralized to make them available to plants. The objective of this work was to establish a usage guideline for the compost by studying its mineralization dynamics. Also, the release of inorganic N and C from soil fertilized with the compost was monitored and modelled.C and N were released throughout the assay, to an extent significantly dependent on fertilizer rate. Mineralization of both elements fitted a first-order exponential model, and each fertilizer rate required using a specific fitting model. An increased rate favoured mineralization (especially of carbon). After 90 days, 2.3% of C and 7.7% of N were mineralized (and 23.3% of total nitrogen made plant available) with the higher rate.C mineralization was slow because organic matter in the compost was very stable. On the other hand, the relatively high initial content in mineral N of the compost increased gradually by the effect of mineralization. The amount of N available would suffice to meet the requirements of moderately demanding crops at the lower fertilizer rate, and even those of more demanding crops at the higher rate. Crops, Agricultural 2. Zero hunger Minerals Nitrogen 0402 animal and dairy science Fishes Agriculture 04 agricultural and veterinary sciences Seaweed Carbon Refuse Disposal Soil 13. Climate action 8. Economic growth Animals 0401 agriculture, forestry, and fisheries 0405 other agricultural sciences Fertilizers Illera-Vives, Marta, López-Fabal, Adolfo, López-Mosquera, M Elvira, Ribeiro, Henrique M, 2015-05-22 journalpaper Seaweed and fish waste can be composted together to obtain fertilizer with high organic matter and nutrient contents. The nutrients, however, are mostly in organic form and must be mineralized to make them available to plants. The objective of this work was to establish a usage guideline for the compost by studying its mineralization dynamics. Also, the release of inorganic N and C from soil fertilized with the compost was monitored and modelled.C and N were released throughout the assay, to an extent significantly dependent on fertilizer rate. Mineralization of both elements fitted a first-order exponential model, and each fertilizer rate required using a specific fitting model. An increased rate favoured mineralization (especially of carbon). After 90 days, 2.3% of C and 7.7% of N were mineralized (and 23.3% of total nitrogen made plant available) with the higher rate.C mineralization was slow because organic matter in the compost was very stable. On the other hand, the relatively high initial content in mineral N of the compost increased gradually by the effect of mineralization. The amount of N available would suffice to meet the requirements of moderately demanding crops at the lower fertilizer rate, and even those of more demanding crops at the higher rate. Mineralization dynamics in soil fertilized with seaweed-fish waste compost 10.1002/jsfa.7207