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A new method to treat farm dairy effluent to produce clarified water for recycling and to reduce environmental risks from the land application of effluent
(Springer Verlag, 2019-05)
Purpose: There is increasing public concern about the amount of fresh water used on New Zealand dairy farms and the adverse impacts that farm dairy effluent (FDE) has on the environment. FDE mainly consists of fresh water ...
Effect of plantain on nitrous oxide emissions and soil nitrification rate in pasture soil under a simulated urine patch in Canterbury, New Zealand
(Springer-Verlag, 2020-03-01)
Purpose: The aim of this research was to quantify the effect of plantain (Plantago lanceolata L.) on soil nitrification rate, functional gene abundance of soil ammonia oxidisers, and the concomitant effect on nitrous oxide ...
Understanding the mechanisms for the lower nitrous oxide emissions from fodder beet urine compared with kale urine from dairy cows
(Springer Verlag, 2018-01)
Nitrous oxide (N₂O) is a potent greenhouse gas and is produced in the soil by nitrification and denitrification processes. Previous studies have reported apparent lower N₂O emissions from dairy cow urine from fodder beet ...
The response of ammonia-oxidizing microorganisms to trace metals and urine in two grassland soils in New Zealand
(Springer Verlag on behalf of EuCheMS Division of Chemistry and the Environment, 2017-01)
An incubation experiment was conducted to investigate the response of ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and the nitrification rate to the contamination of Cu, Zn, and Cd in two New Zealand ...
The effect of soil pH and dicyandiamide (DCD) on N₂O emissions and ammonia oxidiser abundance in a stimulated grazed pasture soil
(Springer Berlin Heidelberg, 2014-08)
Purpose: Nitrous oxide (N₂O) is a potent greenhouse gas which is mainly produced from agricultural soils through the processes of nitrification and denitrification. Although denitrification is usually the major process ...
Effects of nitrogen application rate and a nitrification inhibitor dicyandiamide on ammonia oxidizers and N₂O emissions in a grazed pasture soil
(Elsevier B.V., 2013-11-01)
Ammonia oxidizers, including ammonia oxidizing bacteria (AOB) and ammonia oxidizing archaea (AOA) are important drivers of a key step of the nitrogen cycle — nitrification, which affects the production of the potent ...
Identification of nitrate leaching loss indicators through regression methods based on a meta-analysis of lysimeter studies
(Springer-Verlag Berlin Heidelberg, 2016-02)
This study presents a meta-analysis of 12 experiments that quantify nitrate-N leaching losses from grazed pasture systems in alluvial sedimentary soils in Canterbury (New Zealand). Mean measured nitrate-N leached (kg ...
The potential of using alternative pastures, forage crops and gibberellic acid to mitigate nitrous oxide emissions
(Springer Berlin Heidelberg, 2016-09)
© 2016, Springer-Verlag Berlin Heidelberg. Purpose: In grazed pastures, nitrous oxide (N₂O), a powerful greenhouse gas and an ozone depletion substance, is mostly emitted from animal excreta, particularly animal urine-N ...
Effects of nitrogen application rate and a nitrification inhibitor dicyandiamide on methanotroph abundance and methane uptake in a grazed pasture soil
(Springer-Verlag Berlin Heidelberg, 2013-12)
Methane-oxidizing bacteria (methanotrophs) in the soil are a unique group of methylotrophic bacteria that utilize methane (CH4) as their sole source of carbon and energy which limit the flux of methane to the atmosphere ...
Effect of 7-year application of a nitrification inhibitor, dicyandiamide (DCD), on soil microbial biomass, protease and deaminase activities, and the abundance of bacteria and archaea in pasture soils
(Springer Verlag, 2013-04)
Purpose: The nitrification inhibitor dicyandiamide (DCD) has been shown to be highly effective in reducing nitrate (NO3−) leaching and nitrous oxide (N2O) emissions when used to treat grazed pasture soils. However, there ...