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

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Chantigny, M. H. Articles by Côté, D. Search for Related Content PubMed PubMed Citation Articles by Chantigny, M. H. Articles by Côté, D. Agricola Articles by Chantigny, M. H. Articles by Côté, D. Related Collections Animal Waste Air Pollution Nitrogen

TECHNICAL REPORTS

Waste Management

Gaseous Nitrogen Emissions and Forage Nitrogen Uptake on Soils Fertilized with Raw and Treated Swine Manure

^a Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre, 2560 boul. Hochelaga, Québec, QC, Canada, G1V 2J3
^b Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, 2000, rue Collège, C.P. 90, Sherbrooke, QC, Canada, J1M 1Z3
^c Institut de Recherche et Développement en Agroenvironnement, 2700, rue Einstein, Québec, QC, Canada, G1P 3W8

^* Corresponding author (chantignym{at}agr.gc.ca).

Received for publication February 13, 2007. Treatments to reduce solids content in liquid manure have been developed, but little information is available on gaseous N emissions and plant N uptake after application of treated liquid swine manure (LSM). We measured crop yield, N uptake, and NH₃ and N₂O losses after the application of mineral fertilizer (NH₄NO₃), raw LSM, and LSM that was decanted, filtered, anaerobically digested, or chemically flocculated. The experiment was conducted from 2001 to 2003 on a loam and a sandy loam cropped to timothy (Phleum pratense L.) with annual applications equivalent to 80 kg N ha^–1 in spring and 60 kg N ha^–1 after the first harvest. Raw LSM resulted in NH₃ emissions three to six times larger (P < 0.05) than mineral fertilizer. The LSM treatments reduced NH₃ emissions by an average of 25% compared with raw LSM (P < 0.05). The N₂O emissions tended to be higher with raw LSM than with mineral fertilizer. The LSM treatments had little effect on N₂O emissions, except for anaerobic digestion, which reduced emissions by >50% compared with raw LSM (P < 0.05). Forage yield with raw LSM was >90% of that with mineral fertilizer. The LSM treatments tended to increase forage yield and N uptake relative to raw LSM. We conclude that treated or untreated LSM offers an alternative to mineral fertilizers for forage grass production but care must be taken to minimize NH₃ volatilization. Removing solids from LSM by mechanical, chemical, and biological means reduced NH₃ losses from LSM applied to perennial grass.

Abbreviations: LSM, liquid swine manure • DM, dry matter

This article has been cited by other articles:

				S. Pelletier, G. F. Tremblay, G. Belanger, M. H. Chantigny, P. Seguin, R. Drapeau, and G. Allard Nutritive Value of Timothy Fertilized with Chloride or Chloride-Containing Liquid Swine Manure J Dairy Sci, February 1, 2008; 91(2): 713 - 721. [Abstract] [Full Text] [PDF]

				S. Pelletier, G. Belanger, G. F. Tremblay, M. H. Chantigny, and G. Allard Dietary Cation Anion Difference and Tetany Index of Timothy Forage Fertilized with Liquid Swine Manure Agron. J., January 11, 2008; 100(1): 213 - 220. [Abstract] [Full Text] [PDF]