Ammonia volatilization from liquid swine manure applied to cropland

Journal Article · Wed Dec 31 23:00:00 EST 1980 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1981.00472425001000010020x· OSTI ID:5822014

Hoff, J D; Nelson, D W; Sutton, A L

Randomized complete block design field experiments were conducted to determine the effects of rates and methods of liquid swine manure application on volatile NH/sub 3/-N losses from cropland. In addition, a greenhouse study was conducted to determine the effect of wind on the rate of NH/sub 3/-N volatilization from soil and the accuracy of NH/sub 3/-N loss measurements under field conditions. A partially closed system was utilized to directly collect volatilized NH/sub 3/-N from microplots. The NH/sub 3/-N collection system did not accurately estimate volatile N losses when windy conditions existed as often encountered in the field. Using direct measurement of NH/sub 4//sup +/-N in waste before and after exposure to the atmosphere to correct for the low estimates of NH/sub 3/-N loss under field conditions, an average of 48.1% of the volatilized N was collected under greenhouse conditions with relatively constant temperature and wind. The rate of NH/sub 3/-N loss from manure increased with increasing temperature and air movement. The proportions of the applied NH/sub 4//sup +/-N lost as NH/sub 3/-N during a 3.5-day sampling period in the spring from swine manure (pH 6.4) applied to soil (pH 6.4) and corrected for the effect of wind were: 14.0%, 12.2%, and 11.2% for the 90, 135, and 180 metric ton/ha, respectively, of surface applied liquid swine manure; 2.5% for both the 90 and 180 metric ton rates, respectively, of injected liquid swine manure; 14.7% for surface applied urea fertilizer (168 kg N/ha); and 65.8% of the applied NH/sub 4//sup +/-N from swine manure surface applied (90 metric tons/ha) on a plastic liner. Fresh swine manure (pH 7.8) surface applied at the rate of 135 metric tons/ha on greenhouse loam soil (pH 7.0) lost 82.5% of the applied NH/sub 4//sup +/-N in an 8-day sampling period.

• OSTI ID: 5822014
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 10:1; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

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510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AGRICULTURAL WASTES
AIR POLLUTION
AMMONIA
ANIMALS
AQUEOUS SOLUTIONS
DISPERSIONS
DOMESTIC ANIMALS
FERTILIZERS
GROUND DISPOSAL
HYDRIDES
HYDROGEN COMPOUNDS
MAMMALS
MANAGEMENT
MANURES
MATTER
MIXTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC WASTES
POLLUTION
POLLUTION SOURCES
SOILS
SOLUTIONS
SWINE
VERTEBRATES
VOLATILE MATTER
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WEATHERING