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Now showing items 11-20 of 20
Urine patch area coverage of an intensively stocked dairy pasture
(Lincoln University., 2010-08)
The objective of this study was to develop a new method to quantify seasonal and annual urine patch area coverage under an intensive dairy farming system.
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 ...
Effect of urine, potassium and dicyandiamide application on pasture production from a free-draining Canterbury dairy pasture soil
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2014)
A cut-and-carry trial was conducted on a low quick-test potassium (QTK ≤ 4) Lismore soil during 2012-13 in Springston, Canterbury to test the responsiveness of a dairy pasture to urine, dicyandiamide (DCD) and potassium ...
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 ...
Dry matter intake and body condition score change of dairy cows grazing fodder beet, kale and kale-oat forage systems in winter
(NZGA, 2014)
Crop dry matter (DM) yield, DM utilisation and body condition score (BCS) of dairy cows were measured over two winters on an irrigated stony, free-draining Balmoral soil for three crop grazing systems: fodder beet (FB); ...
Soil inorganic nitrogen in spatially distinct areas within a commercial dairy farm in Canterbury, New Zealand
(New Zealand Grassland Association, 2017)
For precision nitrogen (N) fertilisation of grazed dairy paddocks, soil N distribution needs to be quantified. It is expected that farm infrastructure will affect inorganic-N distribution due to its influence on cow grazing ...
Fertiliser-coating technology to improve the efficiency of copper uptake in pastures
(Fertilizer and Lime Research Centre, Massey University, 2018)
Current practice for trace element (TE) application is to admix granular trace elements in with macro-elemental fertilisers. Although the correct rate of trace elements per hectare can be applied, the distribution of the ...
Effect of urine, potassium and dicyandiamide (DCD) application on pasture production from a free-draining Canterbury dairy pasture soil
(Fertiliser and Lime Research Centre, 2014)
A cut-and-carry trial was conducted on a low Quick-test potassium (QTK ≤ 4) Lismore soil during 2012-13 in Springston, Canterbury to test the responsiveness of a dairy pasture to urine, dicyandiamide (DCD) and potassium ...
The role of bacteria and archaea in nitrification, nitrate leaching and nitrous oxide emissions in nitrogen-rich grassland soils
(Springer, Dordrecht, 2013)
Nitrate (NO₃⁻) leaching into fresh water and nitrous oxide (N₂O) greenhouse gas emissions are two serious environmental impacts that occur from intensively grazed grassland soils. The oxidation of ammonia (NH₃) to NO₃⁻ is ...
The fate of urine nitrogen with use of a nitrification inhibitor
(2012)
Pasture-grazed ruminants in Ireland contribute a significant proportion of nitrogen (N) loss to the environment through excreta deposition. Feed N utilisation by the ruminant animal is low with 60-90% of ingested N returned ...