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Titolo:
N BALANCE EXPERIMENTS ON FEN GRASSLAND WITH N-15 LABELED FERTILIZER
Autore:
AUGUSTIN J; MERBACH W; KADING H; SCHMIDT W; SCHALITZ G; RUSSOW R; ENDE HP;
Indirizzi:
ZENTRUM AGRARLANDSCHAFTS & LANDNUTZUNGSFORSCH EV,INST RHIZOSPHARENFORSCH & PFLANZENERNAHRUNG D-15374 MUNCHEBERG GERMANY ZENTRUM AGRARLANDSCHAFTS & LANDNUTZUNGSFORSCH EV,INST LAND USE SYST &LANDSCAPE ECOL D-15374 MUNCHEBERG GERMANY ZENTRUM AGRARLANDSCHAFTS & LANDNUTZUNGSFORSCH EV,INST SOIL LANDSCAPE RES D-15374 MUNCHEBERG GERMANY ZENTRUM AGRARLANDSCHAFTS & LANDNUTZUNGSFORSCH EV,RES STN PAULINENAUE D-15374 MUNCHEBERG GERMANY UFZ,CTR ENVIRONM RES LEIPZIG HALLE GMBH,DEPT SOIL SCI BAD LAUCHSTADT GERMANY
Titolo Testata:
Isotopes in environmental and health studies
fascicolo: 1-2, volume: 33, anno: 1997,
pagine: 31 - 37
SICI:
1025-6016(1997)33:1-2<31:NBEOFG>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL;
Keywords:
FEN; FERTILIZER N LOSSES; FERTILIZER N TRANSFORMATION; GRASSLAND; MINEROTROPHIC MIRES; N BALANCE EXPERIMENTS; NITROGEN 15;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
J. Augustin et al., "N BALANCE EXPERIMENTS ON FEN GRASSLAND WITH N-15 LABELED FERTILIZER", Isotopes in environmental and health studies, 33(1-2), 1997, pp. 31-37

Abstract

In microplot experiments on two minerotrophic mire sites of northeastern Germany (a: highly degraded, shallow-Paulinenaue, Brandenburg; b: slightly degraded, deep-layer-Heinrichswalde, Mecklenburg-Vorpommern) the fate of N-15-labelled fertilizer-N (120 kg N ha(-1) as (KNO3)-N-15, 46.94 at-% N-15(etc)) was investigated over one growing season. Only53 to 69 % of the applied fertilizer-N (63 to 82 kg N ha(-1)) could be recovered. The plants had taken up about 70 to 79 % of this portion,that is about 16 % of their total N demand. At the end of the first year of experiment, about 21 to 30 % of the fertilizer-N recovered werein the soil, more than 90 % of which in 0-20 cm depth. It is assumed that the low rates of retrieval are due to gaseous losses of N-compounds (as N-2; N2O).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/08/20 alle ore 10:39:11