Results 231 to 240 of about 779,712 (305)

Ammonia volatilization from Vertisols

European Journal of Soil Science, 2002
Summary Farmers want to minimize losses of nitrogen (N) by volatilization of ammonia when adding fertilizers and improve fertilizer recovery of N by plants. We aimed to quantify the losses of N through NH 3 volatilization as affected by soil moisture content, type of ...
Sigunga, D.O., Janssen, B.H., Oenema, O.
openaire   +2 more sources

Nitrogen availability and ammonia volatilization in biochar-based fertilizers

Archives of Agronomy and Soil Science, 2020
Increasing N use efficiency is an important strategy to intensify sustainable agriculture, optimize nutrient use, and reduce N loss to the environment via different routes.
A. P. Puga, Matheus Castro de Almeida Queiroz, M. A. Ligo, C. S. Carvalho, A. M. M. Pires, Juliana de Oliveira Santos Marcatto, C. A. Andrade   +6 more
semanticscholar   +1 more source

Nitrification inhibitors and ammonia volatilization

Plant and Soil, 1971
A nitrification inhibitor applied with ammonium sulphate to bare soil and to grass increased the persistence of ammonium-N in soil and decreased the amount of nitrate-N leached from bare soil. Ammonia was volatilized more rapidly from bare soils treated with ammonium sulphate plus the inhibitor than when ammonium sulphate alone was used; the inhibitor ...
I. S. Cornforth, H. A. D. Chesney
openaire   +1 more source

Ammonia volatilization from flooded soils

Fertilizer Research, 1981
Ammonia volatilization from flooded soils has been studied for over half a century. In reviewing the literature on this subject, it becomes clear that there is no consensus on the importance given to this loss mechanism. In part, the differences of opinion can be explained by the fact that ammonia losses were studied in different environments, but to a
Paul Vlek, Eric T Craswell
openaire   +1 more source

Volatilization of ammonia

1983
Ammonia is ubiquitous in Nature, being formed from the biological degradation of proteins in soil organic matter, plant residues and animal wastes. Its presence is readily detectable near barns, stables and feedlots where plant and animal residues are concentrated but it is also formed in many other situations from less concentrated sources, e.g.
J. R. Freney, J. R. Simpson, O. T. Denmead   +2 more
openaire   +1 more source

Ammonia Volatilization from Senescing Leaves of Maize

Science, 1979
Ammonia release by plants growing in normal air is reported. Contrary to observations made at high ambient ammonia concentrations, corn plants did not absorb ammonia in normal air but released it as they senesced, even while photosynthesizing actively.
G D, Farquhar, R, Wetselaar, P M, Firth
openaire   +2 more sources

Relationships between Ammonia Volatilization, Ammonia Concentration and Water Evaporation

Soil Science Society of America Journal, 1964
Abstract The rate of NH 3 volatilization and the rate of water evaporation from soils followed different functions. These functions were not affected by differences in soil texture, soil water, speed, or relative humidity of air flowing over the soil surface.
Tyng‐Tsair Chao, Wybe Kroontje
openaire   +1 more source

Ammonia Volatilization from Spring Wheat Plants

Agronomy Journal, 1988
AbstractPlant shoots may be a significant source of N loss in crops. Ammonia volatilization and CO2 exchange rates from ‘Olaf’ spring wheat (Triticum aestivum L.) plants exposed to low‐ and high‐N treatments were observed from heading through the hard kernel phenological stages.
W. J. Parton, J. A. Morgan, J. M. Altenhofen, L. A. Harper   +3 more
openaire   +1 more source

Ammonia Volatilization from Freshwater Fish Ponds

Journal of Environmental Quality, 1999
AbstractThis study evaluated ammonia (NH3) emissions to the atmosphere from fishpond waters and uneaten, floating feed. Channel catfish (Ictalurus punctatus) were stocked at 550 pond−1 in four, 400‐m2 ponds at the Auburn University Fisheries Research (AUFRU), Auburn, AL, on 30 May 1997. Feed (28% crude protein), prepared as floating pellets was applied
A. Gross, C. E. Boyd, C. W. Wood
openaire   +1 more source

Ammonia volatilization from compound nitrogen-sulfur fertilizers

1993
Co-granulated urea and ammonium sulfate (AS) offer the potential for supplying both nitrogen (N) and sulfur (S) in a form readily available for plant uptake. Possible effects of a partial substitution of urea by AS on urea hydrolysis and ammonia (NH3) volatilization were examined in laboratory experiments.
Oenema, O., Velthof, G.L.
openaire   +2 more sources