Search
Now showing items 1-10 of 143
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 ...
Refining the New Zealand nitrous oxide emission factor for urea fertiliser and farm dairy effluent
(Elsevier Masson, 2016-04-15)
Applications of urea fertiliser and farm dairy effluent (FDE) to New Zealand pastures are the second and third largest sources of nitrous oxide (N₂O) emissions, after emissions from excreta deposited during grazing (urine ...
Differentiated mechanisms of biochar mitigating straw-induced greenhouse gas emissions in two contrasting paddy soils
(Frontiers, 2018-11-13)
Straw returns to the soil is an effective way to improve soil organic carbon and reduce air pollution by straw burning, but this may increase CH₄ and N₂O emissions risks in paddy soils. Biochar has been used as a soil ...
Sowing a winter catch crop can reduce nitrate leaching losses from winter-applied urine under simulated forage grazing: A lysimeter study
(Wiley on behalf of the British Society of Soil Science, 2016-09)
Grazing of winter forage crops is a common management option used in the dairy industry of New Zealand, particularly in the South Island, where they are used to feed nonlactating, pregnant dairy cows prior to calving. ...
Effects of microbial inoculants on phosphorus and potassium availability, bacterial community composition, and chili pepper growth in a calcareous soil: A greenhouse study
(Springer Verlag, 2019-10-01)
Purpose: Phosphorus (P) and potassium (K) are two important essential nutrient elements for plant growth and development but their availability is often limited in calcareous soils. The objective of this study was to ...
A review of ammonia-oxidizing bacteria and archaea in Chinese soils
(Frontiers Media, 2012-08)
Ammonia (NH₃) oxidation, the first and rate-limiting step of nitrification, is a key step in the global Nitrogen (N) cycle. Major advances have been made in recent years in our knowledge and understanding of the microbial ...
A ¹⁵N-labeling study of the capture of deep soil nitrate from different plant systems
(Elsevier on behalf of the Chinese Academy of Agricultural Sciences (CAAS), 2014-01)
The objective of this study was to determine the efficiency of different plant systems in capturing deep soil nitrate (NO₃⁻) to reduce NO₃⁻ leaching in a field plot experiment using ¹⁵N labelling. The study was conducted ...
Reducing nitrogen leaching losses in grazed dairy systems using an Italian ryegrass-plantain-white clover forage mix
(Wiley on behalf of the British Grassland Society and the European Grassland Federation, 2018-12)
In grazed agricultural systems, animal urine patches are the major source of nitrogen (N) leaching losses and can cause a decline in water quality. Urine-N rates often exceed plant requirements, and there is a need for ...
Nitrosospira cluster 8a plays a predominant role in the nitrification process of a subtropical Ultisol under long-term inorganic and organic fertilization
(American Society for Microbiology, 2018-09)
Long-term effects of inorganic and organic fertilization on nitrification activity (NA) and the abundances and community structures of ammoniaoxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) were investigated ...
Effect of timing of cattle urine deposition and pasture composition on nitrogen leaching losses
(Wiley on behalf of British Society of Soil Science, 2020-09-20)
A lysimeter experiment using undisturbed monoliths from a stony silt loam soil was carried out to quantify the effects different pasture types on N losses from urine applied to soil on different dates. Three pasture types ...