Now showing items 1-10 of 93
Electrodes donate electrons for nitrate reduction in a soil matrix via DNRA and denitrification
(American Chemical Society, 2019-02-19)
Microbial strains and indigenous microbiota in soil slurries have been reported to use electrons from electrodes for nitrate (NO₃⁻) reduction. However, few studies have confirmed this in a soil matrix hitherto. This study ...
Research and application of biochar in New Zealand
(ASA / CSSA / SSSA, 2016)
Readers will appreciate the comprehensive review of the latest biochar research and applications and gain critical guidance in best biochar generation and use.
Can pedogenic carbonate provide a paleotemperature record from ice-free areas of Antarctica?
The aim of the study was to determine whether or not pedogenic (soil) carbonate in Antarctic soils can be used to construct a paleotemperature record.
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 ...
Tillage, compaction and wetting effects on NO₃, N₂O and N₂ losses
(CSIRO Publishing, 2019-02-07)
Denitrification is sensitive to changes in soil physical properties that affect solute transport, air content and gas diffusion. Using lysimeters, containing intact soil from intensively tilled (IT) and no-tilled (NT) soil ...
The potential of L. scoparium, K. robusta and P. radiata to mitigate N-losses in silvopastural systems
(Elsevier Ltd, 2017-06)
Silvopastoral systems aim to enhance economic, cultural and social principles by sustainably combining forest management with agriculture. In these typically high-nitrogen (N) environments, plant species selection can ...
Summer irrigation of pasture enhances the transfer and short-term storage of soil organic carbon in the particulate and mineral-associated organic matter fractions
(CSIRO Publishing, 2020-10-05)
Soil organic carbon (SOC) is both a source and sink of atmospheric carbon dioxide (CO₂), with important implications for global climate change. Irrigation of grazed pastures has reportedly increased, reduced or made no ...
Soil type, bulk density and drainage effects on relative gas diffusivity and N₂O emissions
Nitrous oxide (N₂O), a greenhouse gas, contributes to stratospheric ozone depletion. Agricultural fertiliser use and animal excreta dominate anthropogenic N₂O emissions. Soil relative gas diffusivity (Dp/Do) has been used ...
What is the 'effective area' of a urine patch?
Cattle urine patches are widely regarded as a key contributor to nitrate leaching in pastoral systems because the N loading (up to 1000 kg N per hectare) in a single urine patch is far in excess of what the ...
A hydrochemically guided landscape classification system for modelling spatial variation in multiple water quality indices: Process-attribute mapping
Spatial variation in landscape attributes can account for much of the variability in water quality relative to land use on its own. Such variation results from the coupling between the dominant processes governing water ...