Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Field evaluation of anion exchange membranes as a N soil testing method for grasslands
Autore:
Ziadi, N; Simard, RR; Allard, G; Lafond, J;
Indirizzi:
Agr & Agri Food Canada, Soils & Crops Res & Dev Ctr, St Foy, PQ G1V 2J3, Canada Agr & Agri Food Canada St Foy PQ Canada G1V 2J3 t Foy, PQ G1V 2J3, Canada Univ Laval, Fac Sci Agr & Alimentat, Dept Phytol, St Foy, PQ G1K 7P4, Canada Univ Laval St Foy PQ Canada G1K 7P4 pt Phytol, St Foy, PQ G1K 7P4, Canada
Titolo Testata:
CANADIAN JOURNAL OF SOIL SCIENCE
fascicolo: 2, volume: 79, anno: 1999,
pagine: 281 - 294
SICI:
0008-4271(199905)79:2<281:FEOAEM>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
NITROGEN-MINERALIZATION; NITRATE-NITROGEN; SPRING WHEAT; QUEBEC SOILS; IN-SITU; PHOSPHORUS; AVAILABILITY; TEMPERATURE; DENITRIFICATION; FERTILIZER;
Keywords:
resin; nitrogen; N uptake; grass forage; N mineralization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Simard, RR Agr & Agri Food Canada, Soils & Crops Res & Dev Ctr, 2560 Hochelaga Blvd, St Foy, PQ G1V 2J3, Canada Agr & Agri Food Canada 2560 HochelagaBlvd St Foy PQ Canada G1V 2J3
Citazione:
N. Ziadi et al., "Field evaluation of anion exchange membranes as a N soil testing method for grasslands", CAN J SOIL, 79(2), 1999, pp. 281-294

Abstract

The in situ use of anion exchange membranes (AEMs) as a soil-testing procedure may provide a more precise evaluation of N availability to forages than standard methods. The main objective of this study was to evaluate the potential of AEMs to predict soil NO3-N availability for forage production inthe western part of the province of Quebec, Canada. In 1995 and 1996, AEMswere buried (0-15 cm) in soils at four sites. The fertilizer treatments consisted of five NH4NO3 rates (0, 60, 120, 180, and 240 kg N ha(-1)). At allsites, NO3- sorbed on the AEMs (NO3AEMs) increased with increasing N fertilizer rates. The NO3AEMs fluxes were significantly related to water solubleNO3-N (NO3w) concentration in soil (R-2 varied from 0.35 to 0.98) in the two growing seasons. Forage N uptake was better related with NO3AEMs fluxes (R-2 = 0.88 and 0.92 in spring 1996 and 1995, respectively) than with NO3w concentration (R-2 = 0.39 and 0.97 in spring 1996 and 1995, respectively). Based on their simplicity, rapidity, and low cost, AEMs have many practicaladvantages over water NO3-N extraction for assessing grass forage soil N availability in cool continental climates.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:52:05