خيارات البحث
النتائج 1 - 10 من 29
Corn response to six annual Cu-enriched pig manure applications to three soils.
1988
Gettier S.W. | Martens D.C. | Kornegay E.T.
Does a decade of soil organic fertilization promote copper and zinc bioavailability to an epi-endogeic earthworm?
2023
Laurent, Céline | Bravin, Matthieu | Blanchart, Eric | Crouzet, Olivier | Pelosi, Céline | Lamy, Isabelle
While long-term organic fertilizer (OF) applications tend to decrease copper (Cu) and zinc (Zn) availability in agricultural soils, earthworm bioturbation has been reported to have the opposite effect. Thus, the consequences of OF amendments in earthworm-inhabited soils on Cu and Zn bioavailability to earthworms are still under debate. Here, we assessed the effect of a decade of agronomically realistic OF applications on Cu and Zn availability in earthworm-inhabited soils and the consequences on Cu and Zn bioavailability to earthworms. An epi-endogeic species (Dichogaster saliens) was exposed in microcosms to three field-collected soils that had received either no, mineral, or organic fertilization for a decade. Dissolved organic matter (DOM) properties (i.e., concentration, aromaticity, and binding properties toward Cu), pH, and Cu and Zn availability (i.e., total concentration and free ionic activity) were determined in the solution of the soil containing earthworms. Cu and Zn bioavailability was assessed by measuring the net accumulation (ng) and concentration of Cu and Zn in earthworms (mg kg−1). Despite soil Cu and Zn contamination induced by a decade of OF applications, organic fertilization induced an increase in soil pH and DOM properties that drove the reduction of Cu and Zn availability in earthworm-inhabited soils, while bioturbation had little effect on soil pH, DOM properties, and Cu and Zn availability. Consistently, Cu and Zn bioavailability to earthworms did not increase with OF applications. From an ecotoxicological perspective, our results suggest that agronomically realistic applications of OF for a decade should not pose a risk to earthworms in terms of Cu and Zn net accumulation, but further studies have to be undertaken to understand consequent long-term toxicity after exposure.
اظهر المزيد [+] اقل [-]Copper and zinc solution and interaction on a schistic soil and two sewage sludges
1993
Eulalia de Mesquita, M. | Vieira e Silva, J.M. | Sequeira, E.M. | Domingues, H. (Department of Pedology, National Agronomical Station, Oeiras (Portugal))
An explanation for the apparent losses of metals in a long-term field experiment with sewage sludge
1989
McGrath, S.P. | Lane, P.W. (AFRC Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ (UK))
Chemical and spectroscopic analysis of organic matter transformations during composting of pig manure
1999
Hsu JennHung | Lo ShangLien (Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Road, Taipei (Taiwan))
Mixed farming systems as a way towards a more efficient use of nitrogen in European Union agriculture
1998
Oomen, G.J.M. | Lantinga, E.A. | Goewie, E.A. | Hoek, K.W. van der (Department of Plant and Crop Sciences, Group of Biological Farming Systems, Wageningen Agricultural University, Haarweg 333, 6709 RZ Wageningen (Netherlands))
Composting of spent pig litter in turned and forced-aerated piles
1998
Tiquia, S.M. | Tam, N.F.Y. (Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China))
Environmental performance indicators for nitrogen
1998
Hanegraaf, M.C. (Centre for Agriculture and Environment, P.O. Box 10015, 3505 AA Utrecht (Netherlands))
Nitrogen enrichment of European inland and marine waters with special attention to Danish policy measures
1998
Iversen, T.M. | Grant, R. | Nielsen, K. (National Environmental Research Institute (Denmark))
Reclamation of a bare industrial area contaminated by non-ferrous metals: in situ metal immobilization and revegetation
1995
Vangronsveld, J. | Van Assche, F. | Clijsters, H. (Limbergs Universitair Centrum, Universitaire Campus, 3590 Diepenbeek (Belgium))
