Now showing items 1-4 of 4
Urine patch and fertiliser N interaction: Effects of fertiliser rate and season of urine application on nitrate leaching and pasture N uptake
(Elsevier B.V., 2015-05-01)
Urine patches are the primary source of N loss from pastoral systems due to the high N loading that occurs over a relatively small area. However, few studies have sought to determine the effect of concurrently deposited ...
Plant N uptake in the periphery of a bovine urine patch: Determining the ‘effective area’
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2016)
The extent to which the wetted soil area of a urine patch influences surrounding pasture is relatively unknown. The study objective was to use 15N tracer to quantify pasture N uptake in the ‘wetted’ and periphery areas of ...
Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2015)
Significant areas of ruminant-grazed pastures are simultaneously covered by excreted urine and fertiliser nitrogen (N). However, the effect of overlapping N inputs on nitrous oxide (N₂O) emission factors has not been ...
Nitrogen losses from the soil/plant system: a review
(Wiley on behalf of the Association of Applied Biologists, 2013-03)
Losses of nitrogen from the soil/plant system not only reduce soil fertility and plant yield but can also create adverse impacts on the environment. Ammonia emissions into the atmosphere contribute to acid rain and represent ...