Single and combined application of two-phase olive mill waste and dairy cattle slurry to soil: Short-term effects on N and C dynamics
| Autor: | J. M. Rato Nunes, David Fangueiro, Antonio López-Piñeiro, F. Cabral |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Soil Science and Plant Nutrition. 61:327-336 |
| ISSN: | 1747-0765 0038-0768 |
| DOI: | 10.1080/00380768.2014.986427 |
| Popis: | Two-phase olive mill waste (TPOMW) and dairy cattle slurry (CS) are two organic materials with low economic value and limited potential for reutilization despite their high concentrations of nitrogen (N) and organic matter. A laboratory incubation for ca. 100 d was performed to assess the short-term N and carbon (C) dynamics in a soil amended with TPOMW, CS and a mixture of both materials in order to: (i) explore the potential benefits of mixing TPOMW with CS to promote mineral N immobilization and avoid nitrate leaching, and (ii) assess the potential for increased soil C stocks after TPOMW, CS or TPOMW+CS application. Our results clearly showed that the combined application of TPOMW+CS caused N immobilization; hence, it contributes to tying up the applied N, resulting in a decrease of critical N leaching, which is usually observed after CS application. No clear N mineralization was observed in the TPOMW+CS treatment during the incubation period.It appears that an application of 30 Mg ha−1 of TPOM... |
| Databáze: | OpenAIRE |
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