Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.11/5696
Título: Organic amendments as a source of phosphorus: agronomic and environmental impact of different animal manures applied to an acid soil.
Autor: Monteiro, M.C.H.
Roboredo, M.
Carneiro, J.P.
Duarte, A.C.
Torrent, J.
Sharpley, A.
Palavras-chave: Compost
Erosion
Eutrophication
Phosphorus use efficiency
Runoff water
Data: 2017
Editora: Taylor & Francis
Citação: MONTEIRO, M.C.H. ; Roboredo, M. ; Carneiro, J.P. ; Duarte, A.C. ; Torrent, J. ; Sharpley, A. (2017). Organic amendments as a source of phosphorus : agronomic and environmental impact of different animal manures applied to an acid soil. Archives of Agronomy and Soil Science. ISSN 1476-3567. 63(10):online. P. 1-15
Resumo: Phosphorus (P) is a non-renewable resource highlighting the significance of developing and using alternative P sources for a sustainable agriculture. The work aims to compare the effects of different organic amendments (OA) and a mineral P fertiliser as reference on P use efficiency by the crop, and on P losses to runoff waters and eroded sediments. A two-year field trial was conducted in a Dystric Regosol with Lolium sp. Treatments were: cattle manure compost (CM), solid fraction of swine (SS) and duck (DS) slurries and triple superphosphate (TSP), each applied at 50 kg P ha−1 year−1. Olsen P (mg P kg−1) increased from ≈ 19 at the beginning to ≈ 30 (TSP, CM), 45 (SS) and 62 (DS) after the experiment. Most of applied P remained in soil, between 92% (SS) and 96% (TSP), plant uptake ranged from 5% (CM) to 3.5% (TSP) and total P loss in runoff and sediments ranged between 0.2% (CM) and 4% (SS). OA increased P-use efficiency by the ryegrass crop compared with mineral P fertilizer. Composted cattle manure showed the best agronomic and environmental behaviour, simultaneously increasing P-use efficiency and decreasing P losses by runoff and erosion.
Peer review: yes
URI: http://hdl.handle.net/10400.11/5696
DOI: 10.1080/03650340.2017.1346372
ISSN: 1476-3567
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