@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS084 prodottidellaricerca:prodotto prodotto:ID281272 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA39062 pubblicazioni:autoreCNRDi prodotto:ID281272 . unitaDiPersonaleInterno:MATRICOLA5604 pubblicazioni:autoreCNRDi prodotto:ID281272 . unitaDiPersonaleInterno:MATRICOLA443 pubblicazioni:autoreCNRDi prodotto:ID281272 . istituto:CDS083 prodottidellaricerca:prodotto prodotto:ID281272 . @prefix modulo: . modulo:ID9127 prodottidellaricerca:prodotto prodotto:ID281272 . unitaDiPersonaleInterno:MATRICOLA11531 pubblicazioni:autoreCNRDi prodotto:ID281272 . unitaDiPersonaleInterno:MATRICOLA12800 pubblicazioni:autoreCNRDi prodotto:ID281272 . @prefix rdf: . @prefix retescientifica: . prodotto:ID281272 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1304 . @prefix rdfs: . prodotto:ID281272 rdfs:label "DMPP-added nitrogen fertilizer affects soil N2O emission and microbial activity in Southern Italy (Abstract/Poster in convegno)"@en . @prefix xsd: . prodotto:ID281272 pubblicazioni:anno "2014-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID281272 skos:altLabel "
Luca Vitale (1), Anna De Marco (2), Giuseppe Maglione (3), Franca Polimeno (3), Paul Di Tommasi (1), and Vincenzo Magliulo (1) (2014)
DMPP-added nitrogen fertilizer affects soil N2O emission and microbial activity in Southern Italy
in European Geosciences Union (EGU), General Assembly 2014, Vienna, 24/4/ - 02/05/2014
"^^rdf:HTML ; pubblicazioni:autori "Luca Vitale (1), Anna De Marco (2), Giuseppe Maglione (3), Franca Polimeno (3), Paul Di Tommasi (1), and Vincenzo Magliulo (1)"^^xsd:string ; pubblicazioni:url "http://meetingorganizer.copernicus.org/EGU2014/posters/14061"^^xsd:string ; pubblicazioni:titoloVolume "Geophysical Research Abstracts"^^xsd:string ; pubblicazioni:volumeInCollana "16"^^xsd:string ; pubblicazioni:pagineTotali "1"^^xsd:string ; skos:note "Abstract"^^xsd:string ; pubblicazioni:affiliazioni "(1) National Research Council of Italy - Institute for Agricultural and Forest Systems in the Mediterranean (CNR-ISAFoM),\nErcolano, Italy, \n(2) Department of Biology, University of Naples Federico II, Naples, Italy, \n(3) National Research Council of Italy - Institute for Animal Production System in Mediterranean Environment (CNR-ISPAAM), Naples, Italy"^^xsd:string ; pubblicazioni:titolo "DMPP-added nitrogen fertilizer affects soil N2O emission and microbial activity in Southern Italy"^^xsd:string ; prodottidellaricerca:abstract "Arable sites contributes to global N2O emission due to massive utilization of nitrogen fertilizers. N2O derives\nfrom the biological processes such as nitrification and denitrification influenced by soil nitrogen availability. The\nuse of nitrogen fertilizers added with nitrification inhibitors represents one among the proposed strategy to reduce\nsoil N2O emission form arable sites. The aim of this work was to evaluate the effects of 3,4-dimethylphyrazole\nphosphate (DMPP), a nitrification inhibitor, on N2O emission and microbial activity of a soil cropped to potato in\nSouthern Italy. The experiment was a randomized block design with two treatments applied and three replicates:\ncontrol (C) and DMPP (Entec\u00AE, K+S Nitrogen) plots, both supplied with the same amount of ammonium nitrate.\nThe nitrogen fertilizer was supplied in three events: at 0 Day After Sowing (DAS; 100 kg N ha-1), at 57 DAS (30 kg\nN ha-1), and at 71 DAS (30 kg N ha-1). Soil N2O emission was monitored by both dynamic and static chambers.\nStatic chambers were located both on hills and furrows whereas dynamic chambers were located on furrows. Air\nsamples were collected from chambers at different times and analysed by a gas chromatograph (SRI 8610C, Gas\nChromatograph). Fluxes were estimated as a linear interpolation of N2O changes over a 30 min time. Microbial\nbiomass and basal respiration were determined as CO2 evolution, analysed by means of an IRGA (Li6200, Licor),\non 2 g of fresh soil over a 4h incubation time. Microbial biomass was determined by Substrate Induced Respiration\nmethod. Data show no statistical differences in N2O fluxes measured with either dynamic chambers between C and\nDMPP plots in studied period. However, after the first fertilization event, when the fertilizer was applied as 100 kg\nN ha-1, the average N2O fluxes measured with static chambers were higher in DMPP plots compared to C plots.\nIn the same period, the microbial biomass significantly decreased in DMPP plots as compared to C plots, whereas\nan opposite trend for basal respiration was observed, thus evidencing a stressful condition for nitrifying microbial\npopulation. After 57 and 71 DAS, when fertilizer was applied as 30 kg N ha-1, the microbial biomass was similar\nbetween C and DMPP plots, whereas basal respiration resulted statistically lower in DMPP plots than C plots.\nDuring these periods, average DMPP N2O fluxes were also comparable or lower. In conclusion, our data evidence\na stressful condition for soil microbes and in particular for nitrifiers when a higher DMPP quantity is supplied. On\nthe contrary, when lower quantities of DMPP-added fertilizers are supplied (e.s. 30 kg N ha-1) effectiveness of\nDMPP in reducing soil N2O emission is guaranteed by reducing the nitrifiers activity without negatively affecting\ntheir growth."@en ; prodottidellaricerca:prodottoDi istituto:CDS083 , modulo:ID9127 , istituto:CDS084 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA443 , unitaDiPersonaleInterno:MATRICOLA11531 , unitaDiPersonaleInterno:MATRICOLA5604 , unitaDiPersonaleInterno:MATRICOLA12800 , unitaDiPersonaleInterno:MATRICOLA39062 . @prefix parolechiave: . prodotto:ID281272 parolechiave:insiemeDiParoleChiave . parolechiave:insiemeDiParoleChiaveDi prodotto:ID281272 .