HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (37) Citing Articles via Google Scholar Google Scholar Articles by Rochette, P. Articles by Bertrand, N. Search for Related Content PubMed Articles by Rochette, P. Articles by Bertrand, N. GeoRef GeoRef Citation Agricola Articles by Rochette, P. Articles by Bertrand, N.

Soil Carbon and Nitrogen Dynamics Following Application of Pig Slurry for the 19th Consecutive Year

II. Nitrous Oxide Fluxes and Mineral Nitrogen

^a Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Blvd., Sainte-Foy, QC, Canada, G1V 2J3
^b Institut de recherche et de développement en agroenvironnement, Complexe Scientifique, 2700 Einstein St., Sainte-Foy, QC, Canada, G1P 3W8

View larger version (25K): [in a new window]   Fig. 1 (a) Temporal variations of N2O flux from soils cropped with silage maize amended with mineral fertilizer (control) and pig slurry at 60 (PS60) and 120 Mg ha-1 (PS120). Fluxes were measured with closed chambers except for five dates in 1998 prior to 15 April. Mineral fertilizer was applied on 29 May and pig slurry on 30 June 1997. Error bars = standard deviations. (b) Daily precipitation during the experiment at St-Lambert, Québec, Canada. In 1998, measurements began on 15 April

View larger version (23K): [in a new window]   Fig. 2 Temporal variations of (a) NH+4–N and (b) NO-3-N for soils cropped with silage maize amended with mineral fertilizer (control) and pig slurry at 60 (PS60) and 120 Mg ha-1 (PS120). Mineral fertilizer was applied on 29 May and pig slurry on 30 June 1997. Error bars = standard deviations

View larger version (17K): [in a new window]   Fig. 3 Temporal variations of N2O concentrations at 5, 10, 20, and 40 cm during snow-free season and at 10 and 35 cm during winter in soils cropped with silage maize amended with mineral fertilizer (control) and pig slurry at 60 (PS60) and 120 Mg ha-1 (PS120). Mineral fertilizer was applied on 29 May and pig slurry on 30 June 1997

View larger version (31K): [in a new window]   Fig. 4 (a) Denitrification rate (soil cores) and (b) denitrifying enzyme activity (soil slurries) in soils cropped with silage maize amended with mineral fertilizer (control) and pig slurry at 60 (PS60) and 120 Mg ha-1 (PS120) measured in the laboratory on soil samples taken at four dates in 1997. Mineral fertilizer was applied on 29 May and pig slurry on 30 June 1997. Error bars = standard errors

View larger version (13K): [in a new window]   Fig. 5 Cumulative N2O–N losses from soils cropped with silage maize amended with mineral fertilizer (control) and pig slurry at 60 (PS60) and 120 Mg ha-1 (PS120). Mineral fertilizer was applied on 29 May and pig slurry on 30 June 1997