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 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 (4) Citing Articles via Google Scholar Google Scholar Articles by Al-Kaisi, M. M. Articles by Waskom, R. M. Search for Related Content PubMed Articles by Al-Kaisi, M. M. Articles by Waskom, R. M. Agricola Articles by Al-Kaisi, M. M. Articles by Waskom, R. M. Related Collections Soil Fertility and Productivity Animal Waste Water Quality Nutrient Management Air Pollution

NITROGEN MANAGEMENT

Estimating Ammonia Loss from Sprinkler-Applied Swine Effluent

^a Agronomy Dep., 2104 Agronomy Hall, Iowa State Univ., Ames, IA 50011-1010
^b Dep. of Soil and Crop Sciences, Colorado State Univ., Fort Collins, CO 80523-2033

* Corresponding author (malkaisi{at}iastate.edu)

Received for publication June 12, 2001. Volatilization of NH₃ from sprinkler-applied effluent is a major N loss pathway in the Great Plains region, but there is disagreement as to how much of the total NH₄–N applied in effluent is lost. The objectives of the study were to determine NH₃ loss during sprinkler application and from soil and to determine the amount of mineral N available to the crop over a series of swine effluent application rates, effluent sources, and field conditions. A 3-yr study was conducted on fields near swine (Sus scrofa) production operations. A mass balance method was used to estimate N loss during and after effluent application at rates of 1.3, 1.9, and 2.5 cm. Change in inorganic N concentration in effluent captured below the sprinkler was used to estimate volatilization during application, and the change in inorganic N concentration in soil (before and 72 h after application) was used to estimate N loss from soil. Ammonia loss during application ranged from 8 to 27% of the total NH₄–N in the effluent due to drift and volatilization. The range of estimated N loss from the soil varied from 24 to 56% of the NH₄–N in the applied effluent. The total N loss from both the sprinkler application and the soil ranged from 32 to 83%, with an average loss of approximately 58%. Effluent N concentration did not significantly impact the percent of N lost, while air temperature and wind speed were significant variables in the percent of N lost.

Abbreviations: ET, evapotranspiration • GLM, general linear model • OM, organic matter • RCB, randomized complete block design

This article has been cited by other articles:

				M. R. McLaughlin, T. E. Fairbrother, and D. E. Rowe Nutrient Uptake by Warm-Season Perennial Grasses in a Swine Effluent Spray Field Agron. J., March 1, 2004; 96(2): 484 - 493. [Abstract] [Full Text] [PDF]