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Titolo:
Fertilizer N-15 presence in lysimeter drainage water
Autore:
Prunty, L; Bell, JS; Mulvaney, RL;
Indirizzi:
N Dakota State Univ, Dept Soil Sci, Fargo, ND 58105 USA N Dakota State Univ Fargo ND USA 58105 Dept Soil Sci, Fargo, ND 58105 USA Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 es & Environm Sci, Urbana, IL 61801 USA
Titolo Testata:
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE
fascicolo: 5, volume: 126, anno: 2000,
pagine: 439 - 445
SICI:
0733-9372(200005)126:5<439:FNPILD>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
RITTENBERG TECHNIQUE; LABELED NITROGEN; NO-TILL; CORN; SOIL; FATE; RECOVERY; PASTURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Prunty, L N Dakota State Univ, Dept Soil Sci, POB 5638, Fargo, ND 58105 USA N Dakota State Univ POB 5638 Fargo ND USA 58105 go, ND 58105 USA
Citazione:
L. Prunty et al., "Fertilizer N-15 presence in lysimeter drainage water", J ENV ENG, 126(5), 2000, pp. 439-445

Abstract

Agricultural and natural N cycling systems have been intensively studied via the stable isotope N-15. Tracing N translocation over time by applying N-15-tagged fertilizer has been used extensively. Our objective was to quantify fertilizer N-15 translocation for an extended time in irrigated lysimeters containing sandy loam soil and cropped with corn and potato. Tagged fertilizer was applied to two lysimeters in 1989 and one in 1990. One lysimeter remained untreated. Breakthrough of N-15, above the background level of 0.366 atom %, was detected in drain effluent from 2.3-m.-deep drains on treated lysimeters one year after initial preplant N-15 application. Drainage water N-15 concentration then increased rapidly to about 0.48 atom %, followed by a gradual decrease. However, 9 years after application there was still elevated N-15, 0.39 atom %, in the drainage water and 26-31% of the applied excess N-15 remained in the soil profile. Cumulative N-15 removed from lysimeters via drainage water during the first 7 years was between 3.0 and 3.7%. Estimated gaseous loss was 16%.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 11:27:37