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Density effects on soil-water characteristics, soil-gas diffusivity, and emissions of N₂O and N₂ from a re-packed pasture soil
(Soil Science Society of America, 2019-02)
Density-induced soil structural changes may potentially alter both soil total porosity and soil pore size distribution, and thus change the soil’s water retention characteristics, gas diffusion and transport properties, ...
Soil gas diffusivity controls N₂O and N₂ emissions and their ratio
(Soil Science Society of America, 2016-05-06)
Knowledge of soil biological and physical interactions with respect to N₂O and N₂ fluxes is essential to ensure that agricultural land management is environmentally and economically sustainable. This study determined how ...
Influence of soil bulk density and matric potential on microbial dynamics, inorganic N transformations, N₂O and N₂ fluxes following urea deposition
(Elsevier Ltd., 2013-10)
Transformation of ruminant urine-nitrogen (N) can contribute to negative environmental outcomes such as nitrate leaching which leads to eutrophication of waterways and production of nitrous oxide (N₂O), a greenhouse gas. ...
Increasing soil aeration reduces mitigation efficacy of dicyandiamide when targeted at ruminant urine-derived N₂O emissions
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2015-10-11)
Soil aeration effects on the efficacy of dicyandiamide (DCD) at reducing reactive nitrous oxide (N₂O) fluxes from ruminant urine patches have not been assessed. We tested the null hypothesis that increasing soil aeration ...
Effects of dairy shed effluent dry matter content on ammonia and nitrous oxide emissions from a pasture soil
(Cambridge University Press, 2018-11-01)
Atmospheric emissions of nitrogen (N) from New Zealand dairy farms are significant but have the potential to be affected by manure management prior to land application. The current work examined whether reducing cattle ...
Soil aeration affects the degradation rate of the nitrification inhibitor dicyandiamide
(CSIRO Publishing, 2015)
© CSIRO 2015. Dicyandiamide (DCD) is a nitrification inhibitor of variable efficacy. In soils, DCD biodegradation rate is known to be a function of temperature; however, microbial activity can also be affected by soil ...
Changes in relative gas diffusivity explain soil nitrous oxide flux dynamics
(The American Society of Agronomy, 2013-09-20)
Nitrous oxide (N2O) is a greenhouse gas and the main anthropogenic emission contributing to stratospheric ozone depletion. Agricultural soils dominate anthropogenic N2O emissions but there is very limited information ...