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

This Article Figures Only 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 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 ISI Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by DeLaune, P. B. Articles by Lemunyon, J. L. Search for Related Content PubMed PubMed Citation Articles by DeLaune, P. B. Articles by Lemunyon, J. L. Agricola Articles by DeLaune, P. B. Articles by Lemunyon, J. L. Related Collections Animal Waste Nutrient Management Air Pollution Nitrogen

TECHNICAL REPORT

Waste Management

Effect of Chemical and Microbial Amendments on Ammonia Volatilization from Composting Poultry Litter

^a Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701
^b USDA-ARS, Fayetteville, AR 72701
^c USDA-NRCS, Fort Worth, TX 76115

^* Corresponding author (pdelaun{at}uark.edu).

Received for publication March 5, 2003. Research has shown that aluminum sulfate (alum) and phosphoric acid greatly reduce ammonia (NH₃) volatilization from poultry litter; however, no studies have yet reported the effects of these amendments on field-scale composting of poultry litter. The objectives of this study were to (i) evaluate NH₃ volatilization from composting litter by measuring both NH₃ volatilization and changes in total nitrogen (N) in the litter and (ii) evaluate potential methods of reducing NH₃ losses from composting poultry litter. Poultry litter was composted for 68 d the first year and 92 d the second year. Eleven treatments were screened in Year 1, which included an unamended control, a microbial mixture, a microbial mixture with 5% alum incorporated into the litter, 5 and 10% alum rates either surface-applied or incorporated, and 1 and 2% phosphoric acid rates either surface-applied or incorporated. Treatments in Year 2 included an unamended control, a microbial mixture, alum (7% by fresh wt.), and phosphoric acid (1.5% by fresh wt.). Alum and phosphoric acid reduced NH₃ volatilization from composting poultry litter by as much as 76 and 54%, respectively. The highest NH₃ emission rates were from microbial treatments each year. Compost treated with chemical amendments retained more initial N than all other treatments. Due to the cost and N loss associated with composting poultry litter, composting is not economical from an agronomic perspective compared with the use of fresh poultry litter.

This article has been cited by other articles:

				P. B. DeLaune, P. A. Moore Jr., and J. L. Lemunyon Effect of chemical and microbial amendment on phosphorus runoff from composted poultry litter. J. Environ. Qual., July 1, 2006; 35(4): 1291 - 1296. [Abstract] [Full Text] [PDF]