Now showing items 1-5 of 5
Biochar adsorbed ammonia is bioavailable
(Springer Netherlands, under the auspices of the Royal Netherlands Society of Agricultural Science, 2012-01)
Biochar is produced as a by-product of the low temperature pyrolysis of biomass during bioenergy extraction and its incorporation into soil is of global interest as a potential carbon sequestration tool. Biochar influences ...
Soil-gas diffusivity and soil-moisture effects on N₂O emissions from intact pasture soils
(Wiley on behalf of the Soil Science Society of America, 2019-07)
Grazed pastures are recognized as a dominant source of nitrous oxide (N₂O), a highly potent greenhouse gas. Studies have examined soil physical controls on N₂O emissions, including soil moisture status. Limited attempts ...
Nitrous oxide emissions from in situ deposition of ¹⁵N-labeled ryegrass litter in a pasture soil
(Crop Science Society of America, Soil Science Society of America and American Society of Agronomy, 2013-03)
During pasture grazing, freshly harvested herbage (litterfall) is dropped onto soils from the mouths of dairy cattle, potentially inducing nitrous oxide (N₂O) emissions. Although the Intergovernmental Panel on Climate ...
Evaluation of the stable isotope signatures of nitrate to detect denitrification in a shallow groundwater system in New Zealand
(Elsevier B.V., 2015-04-01)
Denitrification in the groundwater systems of agricultural catchments can provide a substantial ‘ecosystem service’ by attenuating leached nitrate (NO₃⁻) before it reaches surface water bodies. Samples along a groundwater ...
Ammonia volatilisation is not the dominant factor in determining the soil nitrate isotopic composition of pasture systems
(Elsevier B.V., 2015-01-01)
© 2014 Elsevier B.V. Nitrate dual isotopes (δ¹⁵N-NO₃⁻ and δ¹⁸O-NO₃⁻) are increasingly used to assess the sources and sinks of nitrogen (N) pollution in freshwater systems. However, the application of this methodology to ...