Effects of mussel shell addition on the chemical and biological properties of a Cambisol |
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Authors: | Paz-Ferreiro J Baez-Bernal D Castro Insúa J García Pomar M I |
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Affiliation: | a INGACAL, Centro de Investigaciones Agrarias de Mabegondo, La Coruña, Spain b Universidad Politécnica de Madrid, Madrid, Spain |
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Abstract: | The use of a by-product of the fisheries industry (mussel shell) combined with cattle slurry was evaluated as soil amendment, with special attention to the biological component of soil. A wide number of properties related to soil quality were measured: microbial biomass, soil respiration, net N mineralization, dissolved organic carbon, dissolved organic nitrogen, dissolved inorganic nitrogen, dehydrogenase, β-glucosidase, urease and phosphomonoesterase activities. The amendments showed an enhancement of soil biological activity and a decrease of aluminium held in the cation exchange complex. No adverse effects were observed on soil properties. Given that mussel shells are produced in coastal areas as a by-product and have to be managed as a waste and the fertility constraints in the local soils due to their low pH, our research suggest that there is an opportunity for disposing a residue into the soil and improving soil fertility. |
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Keywords: | Mussel shell Soil biochemical properties Soil enzymes Liming |
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