Results 241 to 250 of about 779,712 (305)

Ammonia volatilization from sows on grassland

Atmospheric Environment, 2001
Abstract According to regulations, sows with piglets on organic farms must graze on pastures. Volatilization of ammonia (NH 3 ) from urine patches may represent a significant source of nitrogen (N) loss from these farms. Inputs of N are low on organic farms and losses may reduce crop production.
Sommer, Sven Gjedde, Søgaard, Henning Tangen, Møller, Henrik B., Morsing, Svend   +3 more
openaire   +3 more sources

Water-manure interactions on ammonia volatilization

Biology and Fertility of Soils, 1994
The integrated horizontal flux method was used to determine NH3 volatilization from surface-applied swine manure (Sus scrofa domesticus). This method allows simple NH3 flux estimates to be made from small source plots based on a measurement of windspeed and NH3 concentration at a single sampling height.
R. Gordon, P. Schuepp
openaire   +1 more source

Ammonia Volatilization From Soils: Equilibrium Considerations

Soil Science Society of America Journal, 1977
Abstract The volatilization of ammonia from soils as a function of the system's properties is analyzed theoretically and experimentally. The final concentration of ammonium held by the soil increases with an increase in hydrogen ion activity, with the initial ammonium concentration, and with partial pressure of ammonia in the air.
Yoram Avnimelech, Malka Laher
openaire   +1 more source

Ammonia Volatilization of Winter Spread Manure

Transactions of the ASAE, 1979
ABSTRACT LABORATORY and field experiments were con-ducted to determine ammonia volatilization rates from winter spread manure. Factors considered were manure application rate, freeze-thaw cycles, dehydration, and the urea-ammonium conversion rate. Freezing did not increase the volatilization rate. Drying was not required for volatilization.
null T. S. Steenhuis, null G. D. Bubenzer, null J. C. Converse   +2 more
openaire   +1 more source

Modeling Ammonia Volatilization from Surface‐Applied Swine Effluent

Soil Science Society of America Journal, 2003
Ammonia volatilization is an important issue in agricultural production and environmental protection. Experimental methods and numerical models exist to estimate the rate and amount of ammonia volatilization from commercial fertilizers and animal manures applied to a field.
J. Wu, D. L. Nofziger, J. G. Warren, J. A. Hattey   +3 more
openaire   +1 more source

Ammonia volatilization loss from surface applied livestock manure

Journal of Environmental Science and Health, Part B, 2009
Ammonia (NH(3)) emission from livestock manures used in agriculture reduces N uptake by crops and negatively impacts air quality. This laboratory study was conducted to evaluate NH(3)emission from different livestock manures applied to two soils: Candler fins sand (CFS; light-textured soil, pH 6.8 and field capacity soil water content of 70 g kg(-1 ...
S, Paramasivam, K, Jayaraman, Takela C, Wilson, Ashok K, Alva, Luma, Kelson, Leandra B, Jones   +5 more
openaire   +2 more sources

Ammonia volatilization mitigation in crop farming: A review of fertilizer amendment technologies and mechanisms.

Chemosphere, 2022
Tianling Li, Zhengguo Wang, Chenxu Wang, Jiayu Huang, Yanfang Feng, Weishou Shen, Ming-Yue Zhou, Lin-zhang Yang   +7 more
semanticscholar   +1 more source

Ammonia Volatilization from Soils¹

Agronomy Journal, 1974
AbstractIf NH4+‐N fertilizers are used, most agronomic crops grow best if the soil reaction is near neutrality. Previous studies have shown that if the soil pH becomes alkaline, NH3 volatilization losses of N occurs. The objective of this study was to determine whether or not a rapidly growing crop could reduce the volatilization losses of N ...
Harry A. Mills, Allen V. Barker, Donald N. Maynard   +2 more
openaire   +1 more source

Comparison of Nitrogen Loss Weight in Ammonia Volatilization, Runoff, and Leaching Between Common and Slow-Release Fertilizer in Paddy Field

Water, Air and Soil Pollution, 2021
Luying Chen, Xiaodong Liu, Z. Hua, Hongqin Xue, S. Mei, Peng Wang, Shuwei Wang   +6 more
semanticscholar   +1 more source

Effects of biochar-based fertilizer on nitrogen use efficiency and nitrogen losses via leaching and ammonia volatilization from an open vegetable field

Environmental science and pollution research international, 2021
Miaorong Zhou, Shanshan Ying, Junhui Chen, Peikun Jiang, Y. Teng   +4 more
semanticscholar   +1 more source